Soft-Dielectron Excess in Proton-Proton Collisions at s = 13     TeV

Acharya, S.; Adamová, D.; Adler, A.; Adolfsson, J.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Akbar, Z.; Akindinov, A.; Al-Turany, M.; Alam, S. N.; Albuquerque, D. S. D.; Aleksandrov, D.; Alessandro, B.; Alfanda, H. M.; Alfaro Molina, R.; Ali, B.; Ali, Y.; Alici, A.; Alizadehvandchali, N.; Alkin, A.; Alme, J.; Alt, T.; Altenkamper, L.; Altsybeev, I.; Anaam, M. N.; Andrei, C.; Andreou, D.; Andronic, A.; Angeletti, M.; Anguelov, V.; Anson, C.; Antičić, T.; Antinori, F.; Antonioli, P.; Apadula, N.; Aphecetche, L.; Appelshäuser, H.; Arcelli, S.; Arnaldi, R.; Arratia, M.; Arsene, I. C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Aziz, S.; Azmi, M. D.; Badalà, A.; Baek, Y. W.; Bagnasco, S.; Bai, X.; Bailhache, R.; Bala, R.; Balbino, A.; Baldisseri, A.; Ball, M.; Balouza, S.; Banerjee, D.; Barbera, R.; Barioglio, L.; Barnaföldi, G. G.; Barnby, L. S.; Barret, V.; Bartalini, P.; Bartels, C.; Barth, K.; Bartsch, E.; Baruffaldi, F.; Bastid, N.; Basu, S.; Batigne, G.; Batyunya, B.; Bauri, D.; Bazo Alba, J. L.; Bearden, I. G.; Beattie, C.; Bedda, C.; Behera, N. K.; Belikov, I.; Bell Hechavarria, A. D. C.; Bellini, F.; Bellwied, R.; Belyaev, V.; Bencedi, G.; Beole, S.; Bercuci, A.; Berdnikov, Y.; Berenyi, D.; Bertens, R. A.; Berzano, D.; Besoiu, M. G.; Betev, L.; Bhasin, A.; Bhat, I. R.; Bhat, M. A.; Bhatt, H.; Bhattacharjee, B.; Bianchi, A.; Bianchi, L.; Bianchi, N.; Bielčík, J.; Bielčíková, J.; Bilandzic, A.; Biro, G.; Biswas, R.; Biswas, S.; Blair, J. T.; Blau, D.; Blume, C.; Boca, G.; Bock, F.; Bogdanov, A.; Boi, S.; Bok, J.; Boldizsár, L.; Bolozdynya, A.; Bombara, M.; Bonomi, G.; Borel, H.; Borissov, A.; Bossi, H.; Botta, E.; Bratrud, L.; Braun-Munzinger, P.; Bregant, M.; Broz, M.; Bruna, E.; Bruno, G. E.; Buckland, M. D.; Budnikov, D.; Buesching, H.; Bufalino, S.; Bugnon, O.; Buhler, P.; Buncic, P.; Buthelezi, Z.; Butt, J. B.; Bysiak, S. A.; Caffarri, D.; Caliva, A.; Calvo Villar, E.; Camacho, J. M. M.; Camacho, R. S.; Camerini, P.; Canedo, F. D. M.; Capon, A. A.; Carnesecchi, F.; Caron, R.; Castillo Castellanos, J.; Castro, A. J.; Casula, E. A. R.; Catalano, F.; Ceballos Sanchez, C.; Chakraborty, P.; Chandra, S.; Chang, W.; Chapeland, S.; Chartier, M.; Chattopadhyay, S.; Chattopadhyay, S.; Chauvin, A.; Cheshkov, C.; Cheynis, B.; Chibante Barroso, V.; Chinellato, D. D.; Cho, S.; Chochula, P.; Chowdhury, T.; Christakoglou, P.; Christensen, C. H.; Christiansen, P.; Chujo, T.; Cicalo, C.; Cifarelli, L.; Cilladi, L. D.; Cindolo, F.; Ciupek, M. R.; Clai, G.; Cleymans, J.; Colamaria, F.; Colella, D.; Collu, A.; Colocci, M.; Concas, M.; Conesa Balbastre, G.; Conesa del Valle, Z.; Contin, G.; Contreras, J. G.; Cormier, T. M.; Corrales Morales, Y.; Cortese, P.; Cosentino, M. R.; Costa, F.; Costanza, S.; Crochet, P.; Cuautle, E.; Cui, P.; Cunqueiro, L.; Dabrowski, D.; Dahms, T.; Dainese, A.; Damas, F. P. A.; Danisch, M. C.; Danu, A.; Das, D.; Das, I.; Das, P.; Das, P.; Das, S.; Dash, A.; Dash, S.; De, S.; De Caro, A.; de Cataldo, G.; de Cuveland, J.; De Falco, A.; De Gruttola, D.; De Marco, N.; De Pasquale, S.; Deb, S.; Degenhardt, H. F.; Deja, K. R.; Deloff, A.; Delsanto, S.; Deng, W.; Dhankher, P.; Di Bari, D.; Di Mauro, A.; Diaz, R. A.; Dietel, T.; Dillenseger, P.; Ding, Y.; Divià, R.; Dixit, D. U.; Djuvsland, Ø.; Dmitrieva, U.; Dobrin, A.; Dönigus, B.; Dordic, O.; Dubey, A. K.; Dubla, A.; Dudi, S.; Dukhishyam, M.; Dupieux, P.; Ehlers, R. J.; Eikeland, V. N.; Elia, D.; Erazmus, B.; Erhardt, F.; Erokhin, A.; Ersdal, M. R.; Espagnon, B.; Eulisse, G.; Evans, D.; Evdokimov, S.; Fabbietti, L.; Faggin, M.; Faivre, J.; Fan, F.; Fantoni, A.; Fasel, M.; Fecchio, P.; Feliciello, A.; Feofilov, G.; Fernández Téllez, A.; Ferrero, A.; Ferretti, A.; Festanti, A.; Feuillard, V. J. G.; Figiel, J.; Filchagin, S.; Finogeev, D.; Fionda, F. M.; Fiorenza, G.; Flor, F.; Flores, A. N.; Foertsch, S.; Foka, P.; Fokin, S.; Fragiacomo, E.; Frankenfeld, U.; Fuchs, U.; Furget, C.; Furs, A.; Fusco Girard, M.; Gaardhøje, J. J.; Gagliardi, M.; Gago, A. M.; Gal, A.; Galvan, C. D.; Ganoti, P.; Garabatos, C.; Garcia, J. R. A.; Garcia-Solis, E.; Garg, K.; Gargiulo, C.; Garibli, A.; Garner, K.; Gasik, P.; Gauger, E. F.; Gay Ducati, M. B.; Germain, M.; Ghosh, J.; Ghosh, P.; Ghosh, S. K.; Giacalone, M.; Gianotti, P.; Giubellino, P.; Giubilato, P.; Glaenzer, A. M. C.; Glässel, P.; Gomez Ramirez, A.; Gonzalez, V.; González-Trueba, L. H.; Gorbunov, S.; Görlich, L.; Goswami, A.; Gotovac, S.; Grabski, V.; Graczykowski, L. K.; Graham, K. L.; Greiner, L.; Grelli, A.; Grigoras, C.; Grigoriev, V.; Grigoryan, A.; Grigoryan, S.; Groettvik, O. S.; Grosa, F.; Grosse-Oetringhaus, J. F.; Grosso, R.; Guernane, R.; Guittiere, M.; Gulbrandsen, K.; Gunji, T.; Gupta, A.; Gupta, R.; Guzman, I. B.; Haake, R.; Habib, M. K.; Hadjidakis, C.; Hamagaki, H.; Hamar, G.; Hamid, M.; Hannigan, R.; Haque, M. R.; Harlenderova, A.; Harris, J. W.; Harton, A.; Hasenbichler, J. A.; Hassan, H.; Hassan, Q. U.; Hatzifotiadou, D.; Hauer, P.; Havener, L. B.; Hayashi, S.; Heckel, S. T.; Hellbär, E.; Helstrup, H.; Herghelegiu, A.; Herman, T.; Hernandez, E. G.; Herrera Corral, G.; Herrmann, F.; Hetland, K. F.; Hillemanns, H.; Hills, C.; Hippolyte, B.; Hohlweger, B.; Honermann, J.; Horak, D.; Hornung, A.; Hornung, S.; Hosokawa, R.; Hristov, P.; Huang, C.; Hughes, C.; Huhn, P.; Humanic, T. J.; Hushnud, H.; Husova, L. A.; Hussain, N.; Hussain, S. A.; Hutter, D.; Iddon, J. P.; Ilkaev, R.; Ilyas, H.; Inaba, M.; Innocenti, G. M.; Ippolitov, M.; Isakov, A.; Islam, M. S.; Ivanov, M.; Ivanov, V.; Izucheev, V.; Jacak, B.; Jacazio, N.; Jacobs, P. M.; Jadlovska, S.; Jadlovsky, J.; Jaelani, S.; Jahnke, C.; Jakubowska, M. J.; Janik, M. A.; Janson, T.; Jercic, M.; Jevons, O.; Jin, M.; Jonas, F.; Jones, P. G.; Jung, J.; Jung, M.; Jusko, A.; Kalinak, P.; Kalweit, A.; Kaplin, V.; Kar, S.; Karasu Uysal, A.; Karatovic, D.; Karavichev, O.; Karavicheva, T.; Karczmarczyk, P.; Karpechev, E.; Kazantsev, A.; Kebschull, U.; Keidel, R.; Keil, M.; Ketzer, B.; Khabanova, Z.; Khan, A. M.; Khan, S.; Khanzadeev, A.; Kharlov, Y.; Khatun, A.; Khuntia, A.; Kileng, B.; Kim, B.; Kim, B.; Kim, D.; Kim, D. J.; Kim, E. J.; Kim, H.; Kim, J.; Kim, J. S.; Kim, J.; Kim, J.; Kim, J.; Kim, M.; Kim, S.; Kim, T.; Kim, T.; Kirsch, S.; Kisel, I.; Kiselev, S.; Kisiel, A.; Klay, J. L.; Klein, C.; Klein, J.; Klein, S.; Klein-Bösing, C.; Kleiner, M.; Kluge, A.; Knichel, M. L.; Knospe, A. G.; Kobdaj, C.; Köhler, M. K.; Kollegger, T.; Kondratyev, A.; Kondratyeva, N.; Kondratyuk, E.; Konig, J.; Konigstorfer, S. A.; Konopka, P. J.; Kornakov, G.; Koska, L.; Kovalenko, O.; Kovalenko, V.; Kowalski, M.; Králik, I.; Kravčáková, A.; Kreis, L.; Krivda, M.; Krizek, F.; Krizkova Gajdosova, K.; Krüger, M.; Kryshen, E.; Krzewicki, M.; Kubera, A. M.; Kučera, V.; Kuhn, C.; Kuijer, P. G.; Kumar, L.; Kundu, S.; Kurashvili, P.; Kurepin, A.; Kurepin, A. B.; Kuryakin, A.; Kushpil, S.; Kvapil, J.; Kweon, M. J.; Kwon, J. Y.; Kwon, Y.; La Pointe, S. L.; La Rocca, P.; Lai, Y. S.; Lamanna, M.; Langoy, R.; Lapidus, K.; Lardeux, A.; Larionov, P.; Laudi, E.; Lavicka, R.; Lazareva, T.; Lea, R.; Leardini, L.; Lee, J.; Lee, S.; Lehner, S.; Lehrbach, J.; Lemmon, R. C.; León Monzón, I.; Lesser, E. D.; Lettrich, M.; Lévai, P.; Li, X.; Li, X. L.; Lien, J.; Lietava, R.; Lim, B.; Lindenstruth, V.; Lindner, A.; Lippmann, C.; Lisa, M. A.; Liu, A.; Liu, J.; Liu, S.; Llope, W. J.; Lofnes, I. M.; Loginov, V.; Loizides, C.; Loncar, P.; Lopez, J. A.; Lopez, X.; López Torres, E.; Luhder, J. R.; Lunardon, M.; Luparello, G.; Ma, Y. G.; Maevskaya, A.; Mager, M.; Mahmood, S. M.; Mahmoud, T.; Maire, A.; Majka, R. D.; Malaev, M.; Malik, Q. W.; Malinina, L.; Mal’Kevich, D.; Malzacher, P.; Mandaglio, G.; Manko, V.; Manso, F.; Manzari, V.; Mao, Y.; Marchisone, M.; Mareš, J.; Margagliotti, G. V.; Margotti, A.; Marín, A.; Markert, C.; Marquard, M.; Martin, C. D.; Martin, N. A.; Martinengo, P.; Martinez, J. L.; Martínez, M. I.; Martínez García, G.; Masciocchi, S.; Masera, M.; Masoni, A.; Massacrier, L.; Masson, E.; Mastroserio, A.; Mathis, A. M.; Matonoha, O.; Matuoka, P. F. T.; Matyja, A.; Mayer, C.; Mazzaschi, F.; Mazzilli, M.; Mazzoni, M. A.; Mechler, A. F.; Meddi, F.; Melikyan, Y.; Menchaca-Rocha, A.; Mengke, C.; Meninno, E.; Menon, A. S.; Meres, M.; Mhlanga, S.; Miake, Y.; Micheletti, L.; Migliorin, L. C.; Mihaylov, D. L.; Mikhaylov, K.; Mishra, A. N.; Miśkowiec, D.; Modak, A.; Mohammadi, N.; Mohanty, A. P.; Mohanty, B.; Mohisin Khan, M.; Moravcova, Z.; Mordasini, C.; Moreira De Godoy, D. A.; Moreno, L. A. P.; Morozov, I.; Morsch, A.; Mrnjavac, T.; Muccifora, V.; Mudnic, E.; Mühlheim, D.; Muhuri, S.; Mulligan, J. D.; Mulliri, A.; Munhoz, M. G.; Munzer, R. H.; Murakami, H.; Murray, S.; Musa, L.; Musinsky, J.; Myers, C. J.; Myrcha, J. W.; Naik, B.; Nair, R.; Nandi, B. K.; Nania, R.; Nappi, E.; Naru, M. U.; Nassirpour, A. F.; Nattrass, C.; Nayak, R.; Nayak, T. K.; Nazarenko, S.; Neagu, A.; Negrao De Oliveira, R. A.; Nellen, L.; Nesbo, S. V.; Neskovic, G.; Nesterov, D.; Neumann, L. T.; Nielsen, B. S.; Nikolaev, S.; Nikulin, S.; Nikulin, V.; Noferini, F.; Nomokonov, P.; Norman, J.; Novitzky, N.; Nowakowski, P.; Nyanin, A.; Nystrand, J.; Ogino, M.; Ohlson, A.; Oleniacz, J.; Oliveira Da Silva, A. C.; Oliver, M. H.; Oppedisano, C.; Ortiz Velasquez, A.; Oskarsson, A.; Otwinowski, J.; Oyama, K.; Pachmayer, Y.; Pacik, V.; Padhan, S.; Pagano, D.; Paić, G.; Pan, J.; Panebianco, S.; Pareek, P.; Park, J.; Parkkila, J. E.; Parmar, S.; Pathak, S. P.; Paul, B.; Pazzini, J.; Pei, H.; Peitzmann, T.; Peng, X.; Pereira, L. G.; Pereira Da Costa, H.; Peresunko, D.; Perez, G. M.; Perrin, S.; Pestov, Y.; Petráček, V.; Petrovici, M.; Pezzi, R. P.; Piano, S.; Pikna, M.; Pillot, P.; Pinazza, O.; Pinsky, L.; Pinto, C.; Pisano, S.; Pistone, D.; Płoskoń, M.; Planinic, M.; Pliquett, F.; Poghosyan, M. G.; Polichtchouk, B.; Poljak, N.; Pop, A.; Porteboeuf-Houssais, S.; Pozdniakov, V.; Prasad, S. K.; Preghenella, R.; Prino, F.; Pruneau, C. A.; Pshenichnov, I.; Puccio, M.; Putschke, J.; Qiu, S.; Quaglia, L.; Quishpe, R. E.; Ragoni, S.; Raha, S.; Rajput, S.; Rak, J.; Rakotozafindrabe, A.; Ramello, L.; Rami, F.; Ramirez, S. A. R.; Raniwala, R.; Raniwala, S.; Räsänen, S. S.; Rath, R.; Ratza, V.; Ravasenga, I.; Read, K. F.; Redelbach, A. R.; Redlich, K.; Rehman, A.; Reichelt, P.; Reidt, F.; Ren, X.; Renfordt, R.; Rescakova, Z.; Reygers, K.; Riabov, A.; Riabov, V.; Richert, T.; Richter, M.; Riedler, P.; Riegler, W.; Riggi, F.; Ristea, C.; Rode, S. P.; Rodríguez Cahuantzi, M.; Røed, K.; Rogalev, R.; Rogochaya, E.; Rohr, D.; Röhrich, D.; Rojas, P. F.; Rokita, P. S.; Ronchetti, F.; Rosano, A.; Rosas, E. D.; Roslon, K.; Rossi, A.; Rotondi, A.; Roy, A.; Roy, P.; Rueda, O. V.; Rui, R.; Rumyantsev, B.; Rustamov, A.; Ryabinkin, E.; Ryabov, Y.; Rybicki, A.; Rytkonen, H.; Saarimaki, O. A. M.; Sadek, R.; Sadhu, S.; Sadovsky, S.; Šafařík, K.; Saha, S. K.; Sahoo, B.; Sahoo, P.; Sahoo, R.; Sahoo, S.; Sahu, P. K.; Saini, J.; Sakai, S.; Sambyal, S.; Samsonov, V.; Sarkar, D.; Sarkar, N.; Sarma, P.; Sarti, V. M.; Sas, M. H. P.; Scapparone, E.; Schambach, J.; Scheid, H. S.; Schiaua, C.; Schicker, R.; Schmah, A.; Schmidt, C.; Schmidt, H. R.; Schmidt, M. O.; Schmidt, M.; Schmidt, N. V.; Schmier, A. R.; Schukraft, J.; Schutz, Y.; Schwarz, K.; Schweda, K.; Scioli, G.; Scomparin, E.; Seger, J. E.; Sekiguchi, Y.; Sekihata, D.; Selyuzhenkov, I.; Senyukov, S.; Serebryakov, D.; Sevcenco, A.; Shabanov, A.; Shabetai, A.; Shahoyan, R.; Shaikh, W.; Shangaraev, A.; Sharma, A.; Sharma, A.; Sharma, H.; Sharma, M.; Sharma, N.; Sharma, S.; Sheibani, O.; Shigaki, K.; Shimomura, M.; Shirinkin, S.; Shou, Q.; Sibiriak, Y.; Siddhanta, S.; Siemiarczuk, T.; Silvermyr, D.; Simatovic, G.; Simonetti, G.; Singh, B.; Singh, R.; Singh, R.; Singh, R.; Singh, V. K.; Singhal, V.; Sinha, T.; Sitar, B.; Sitta, M.; Skaali, T. B.; Slupecki, M.; Smirnov, N.; Snellings, R. J. M.; Soncco, C.; Song, J.; Songmoolnak, A.; Soramel, F.; Sorensen, S.; Sputowska, I.; Stachel, J.; Stan, I.; Steffanic, P. J.; Stenlund, E.; Stiefelmaier, S. F.; Stocco, D.; Storetvedt, M. M.; Stritto, L. D.; Suaide, A. A. P.; Sugitate, T.; Suire, C.; Suleymanov, M.; Suljic, M.; Sultanov, R.; Šumbera, M.; Sumberia, V.; Sumowidagdo, S.; Swain, S.; Szabo, A.; Szarka, I.; Tabassam, U.; Taghavi, S. F.; Taillepied, G.; Takahashi, J.; Tambave, G. J.; Tang, S.; Tarhini, M.; Tarzila, M. G.; Tauro, A.; Tejeda Muñoz, G.; Telesca, A.; Terlizzi, L.; Terrevoli, C.; Thakur, D.; Thakur, S.; Thomas, D.; Thoresen, F.; Tieulent, R.; Tikhonov, A.; Timmins, A. R.; Toia, A.; Topilskaya, N.; Toppi, M.; Torales-Acosta, F.; Torres, S. R.; Trifiró, A.; Tripathy, S.; Tripathy, T.; Trogolo, S.; Trombetta, G.; Tropp, L.; Trubnikov, V.; Trzaska, W. H.; Trzcinski, T. P.; Trzeciak, B. A.; Tumkin, A.; Turrisi, R.; Tveter, T. S.; Ullaland, K.; Umaka, E. N.; Uras, A.; Usai, G. L.; Vala, M.; Valle, N.; Vallero, S.; van der Kolk, N.; van Doremalen, L. V. R.; van Leeuwen, M.; Vande Vyvre, P.; Varga, D.; Varga, Z.; Varga-Kofarago, M.; Vargas, A.; Vasileiou, M.; Vasiliev, A.; Vázquez Doce, O.; Vechernin, V.; Vercellin, E.; Vergara Limón, S.; Vermunt, L.; Vernet, R.; Vértesi, R.; Vickovic, L.; Vilakazi, Z.; Villalobos Baillie, O.; Vino, G.; Vinogradov, A.; Virgili, T.; Vislavicius, V.; Vodopyanov, A.; Volkel, B.; Völkl, M. A.; Voloshin, K.; Voloshin, S. A.; Volpe, G.; von Haller, B.; Vorobyev, I.; Voscek, D.; Vrláková, J.; Wagner, B.; Weber, M.; Weber, S. G.; Wegrzynek, A.; Wenzel, S. C.; Wessels, J. P.; Wiechula, J.; Wikne, J.; Wilk, G.; Wilkinson, J.; Willems, G. A.; Willsher, E.; Windelband, B.; Winn, M.; Witt, W. E.; Wright, J. R.; Wu, Y.; Xu, R.; Yalcin, S.; Yamaguchi, Y.; Yamakawa, K.; Yang, S.; Yano, S.; Yin, Z.; Yokoyama, H.; Yoo, I. -K.; Yoon, J. H.; Yuan, S.; Yuncu, A.; Yurchenko, V.; Zaccolo, V.; Zaman, A.; Zampolli, C.; Zanoli, H. J. C.; Zardoshti, N.; Zarochentsev, A.; Závada, P.; Zaviyalov, N.; Zbroszczyk, H.; Zhalov, M.; Zhang, S.; Zhang, X.; Zhang, Z.; Zherebchevskii, V.; Zhi, Y.; Zhou, D.; Zhou, Y.; Zhou, Z.; Zhu, J.; Zhu, Y.; Zichichi, A.; Zinovjev, G.; Zurlo, N.

doi:10.1103/PhysRevLett.127.042302

Title: Soft-Dielectron Excess in Proton-Proton Collisions at $\sqrt{s} = 13 TeV$

Journal Article · Fri Jul 23 00:00:00 EDT 2021 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.127.042302· OSTI ID:1809900

Acharya, S.; Adamová, D.; Adler, A.; Adolfsson, J.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Akbar, Z.; Akindinov, A.; Al-Turany, M.; Alam, S. N.; Albuquerque, D. S. D.; Aleksandrov, D.; Alessandro, B.; Alfanda, H. M.; Alfaro Molina, R. more »

A measurement of dielectron production in proton-proton (pp) collisions at √s = 13 TeV, recorded with the ALICE detector at the CERN LHC, is presented in this Letter. The data set was recorded with a reduced magnetic solenoid field. This enables the investigation of a kinematic domain at low dielectron (ee) invariant mass m_ee and pair transverse momentum pT,_ee that was previously inaccessible at the LHC. The cross section for dielectron production is studied as a function of m_ee, pT,_ee, and event multiplicity dN_ch/dη. The expected dielectron rate from hadron decays, called hadronic cocktail, utilizes a parametrization of the measured η/π⁰ ratio in pp and proton-nucleus collisions, assuming that this ratio shows no strong dependence on collision energy at low transverse momentum. Comparison of the measured dielectron yield to the hadronic cocktail at 0.15 < m_ee < 0.6 GeV/c² and for pT,_ee < 0.4 GeV/c indicates an enhancement of soft dielectrons, reminiscent of the “anomalous” soft-photon and soft-dilepton excess in hadron-hadron collisions reported by several experiments under different experimental conditions. The enhancement factor over the hadronic cocktail amounts to 1.61 ± 0.13(stat) ± 0.17(syst,data) ± 0.34(syst,cocktail) in the ALICE acceptance. Acceptance-corrected excess spectra in m_ee and pT,_ee are extracted and compared with calculations of dielectron production from hadronic bremsstrahlung and thermal radiation within a hadronic many-body approach.

View Journal Article

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: A Large Ion Collider Experiment Collaboration

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1809900

Alternate ID(s):: OSTI ID: 1822023

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Vol. 127 Journal Issue: 4; ISSN 0031-9007

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (73)

Measurement of direct electron-positron pair production from hadronic bremsstrahlung Goshaw, A. T.; Evans, L. E.; Fortney, L. R. Physical Review D, Vol. 24, Issue 11 https://doi.org/10.1103/PhysRevD.24.2829	journal	December 1981
Signatures of thermal dilepton radiation at ultrarelativistic energies Rapp, Ralf Physical Review C, Vol. 63, Issue 5 https://doi.org/10.1103/PhysRevC.63.054907	journal	April 2001
Enhanced Production of Low-Mass Electron Pairs in 200 GeV/Nucleon S-Au Collisions at the CERN Super Proton Synchrotron Agakichiev, G.; Baur, R.; Breskin, A. Physical Review Letters, Vol. 75, Issue 7 https://doi.org/10.1103/PhysRevLett.75.1272	journal	August 1995
Further analysis of a direct soft photon excess in π−p interactions at 280 GeV/c Belogianni, A.; Beusch, W.; Brodbeck, T. J. Physics Letters B, Vol. 548, Issue 3-4 https://doi.org/10.1016/S0370-2693(02)02836-8	journal	November 2002
Alignment of the ALICE Inner Tracking System with cosmic-ray tracks collaboration, Alice Journal of Instrumentation, Vol. 5, Issue 03 https://doi.org/10.1088/1748-0221/5/03/P03003	journal	March 2010
Measurements of dielectron production in Au + Au collisions at $\sqrt{s_{N N}} = 200$ GeV from the STAR experiment Adamczyk, L.; Adkins, J. K.; Agakishiev, G. Physical Review C, Vol. 92, Issue 2 https://doi.org/10.1103/PhysRevC.92.024912	journal	August 2015
Measurements of Multiparticle Correlations in $d + Au$ Collisions at 200, 62.4, 39, and 19.6 GeV and $p + Au$ Collisions at 200 GeV and Implications for Collective Behavior Aidala, C.; Akiba, Y.; Alfred, M. Physical Review Letters, Vol. 120, Issue 6 https://doi.org/10.1103/PhysRevLett.120.062302	journal	February 2018
Coherent lepton pair production in hadronic heavy ion collisions Zha, W.; Ruan, L.; Tang, Z. Physics Letters B, Vol. 781 https://doi.org/10.1016/j.physletb.2018.04.006	journal	June 2018
Dilepton Spectroscopy of QCD Matter at Collider Energies Rapp, Ralf Advances in High Energy Physics, Vol. 2013 https://doi.org/10.1155/2013/148253	journal	January 2013
Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at $\sqrt{s} = 13 TeV$ Acharya, S.; Torales-Acosta, F.; Adamová, D. Physics Letters B, Vol. 788 https://doi.org/10.1016/j.physletb.2018.11.009	journal	January 2019
Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at s = 7 $$ \sqrt{s}=7 $$ TeV Adam, J.; Adamová, D.; Aggarwal, M. M. Journal of High Energy Physics, Vol. 2015, Issue 9 https://doi.org/10.1007/JHEP09(2015)148	journal	September 2015
Multiplicity dependence of $$\pi $$, K, and p production in pp collisions at $$\sqrt{s} = 13$$ TeV Acharya, S.; Adamová, D.; Adler, A. The European Physical Journal C, Vol. 80, Issue 8 https://doi.org/10.1140/epjc/s10052-020-8125-1	journal	August 2020
Femtoscopy of $p p$ collisions at $\sqrt{s} = 0.9$ and 7 TeV at the LHC with two-pion Bose-Einstein correlations Aamodt, K.; Abrahantes Quintana, A.; Adamová, D. Physical Review D, Vol. 84, Issue 11 https://doi.org/10.1103/PhysRevD.84.112004	journal	December 2011
Dilepton radiation at the CERN super-proton synchrotron van Hees, Hendrik; Rapp, Ralf Nuclear Physics A, Vol. 806, Issue 1-4 https://doi.org/10.1016/j.nuclphysa.2008.03.009	journal	June 2008
PYTHIA 6.4 physics and manual Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter Journal of High Energy Physics, Vol. 2006, Issue 05 https://doi.org/10.1088/1126-6708/2006/05/026	journal	May 2006
Dilepton radiation in heavy-ion collisions at small transverse momentum Kłusek-Gawenda, Mariola; Rapp, Ralf; Schäfer, Wolfgang Physics Letters B, Vol. 790 https://doi.org/10.1016/j.physletb.2019.01.035	journal	March 2019
Hadronic Production of Massive Muon Pairs: Dependence on Incident-Particle Type and on Target Nucleus Branson, J. G.; Sanders, G. H.; Smith, A. J. S. Physical Review Letters, Vol. 38, Issue 23 https://doi.org/10.1103/PhysRevLett.38.1334	journal	June 1977
Direct Electron-Pair Production in $π^{\pm} p$ Interactions at 18 GeV/ c Ballam, J.; Bouchez, J.; Carroll, J. T. Physical Review Letters, Vol. 41, Issue 18 https://doi.org/10.1103/PhysRevLett.41.1207	journal	October 1978
Neutral pion and η meson production in proton–proton collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>0.9</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> Abelev, B.; Abrahantes Quintana, A.; Adamová, D. Physics Letters B, Vol. 717, Issue 1-3 https://doi.org/10.1016/j.physletb.2012.09.015	journal	October 2012
Consistency of data on soft photon production in hadronic interactions Lichard, Peter Physical Review D, Vol. 50, Issue 11 https://doi.org/10.1103/PhysRevD.50.6824	journal	December 1994
Direct electron pair production in π−p interactions at 16 GeV/c and a model for direct lepton and photon production at low pT Blockus, D.; Dunwoodie, W.; Leith, D. W. G. S. Nuclear Physics B, Vol. 201, Issue 2 https://doi.org/10.1016/0550-3213(82)90430-8	journal	June 1982
Observation of Associated Near-Side and Away-Side Long-Range Correlations in $\sqrt{s_{N N}} = 5.02 TeV$ Proton-Lead Collisions with the ATLAS Detector Aad, G.; Abajyan, T.; Abbott, B. Physical Review Letters, Vol. 110, Issue 18 https://doi.org/10.1103/PhysRevLett.110.182302	journal	May 2013
Neutral pion and $$\eta $$ η meson production in p–Pb collisions at $$\sqrt{s_{\mathrm{NN}}}$$ s NN = 5.02 TeV Acharya, S.; Adamová, D.; Adolfsson, J. The European Physical Journal C, Vol. 78, Issue 8 https://doi.org/10.1140/epjc/s10052-018-6013-8	journal	August 2018
Observation of a soft photon signal in excess of QED expectations in pp interactions Belogianni, A.; Beusch, W.; Brodbeck, T. J. Physics Letters B, Vol. 548, Issue 3-4 https://doi.org/10.1016/S0370-2693(02)02837-X	journal	November 2002
First Observation of Dielectron Production in Proton-Nucleus Collisions below 10 GeV Roche, G.; Claesson, G.; Hendrie, D. Physical Review Letters, Vol. 61, Issue 9 https://doi.org/10.1103/PhysRevLett.61.1069	journal	August 1988
Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A. Journal of High Energy Physics, Vol. 2010, Issue 9 https://doi.org/10.1007/JHEP09(2010)091	journal	September 2010
Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity $p + Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV Aidala, C.; Akiba, Y.; Alfred, M. Physical Review C, Vol. 95, Issue 3 https://doi.org/10.1103/PhysRevC.95.034910	journal	March 2017
The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events Alme, J.; Andres, Y.; Appelshäuser, H. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 622, Issue 1 https://doi.org/10.1016/j.nima.2010.04.042	journal	October 2010
Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{NN}} = 5.02 TeV$ Acharya, S.; Adamová, D.; Adler, A. Physical Review C, Vol. 102, Issue 5 https://doi.org/10.1103/PhysRevC.102.055204	journal	November 2020
The ALICE experiment at the CERN LHC Collaboration, The ALICE; Aamodt, K.; Quintana, A. Abrahantes Journal of Instrumentation, Vol. 3, Issue 08 https://doi.org/10.1088/1748-0221/3/08/S08002	journal	August 2008
Tuning PYTHIA 8.1: the Monash 2013 tune Skands, P.; Carrazza, S.; Rojo, J. The European Physical Journal C, Vol. 74, Issue 8 https://doi.org/10.1140/epjc/s10052-014-3024-y	journal	August 2014
Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy Agakichiev, G.; Appenheimer, M.; Averbeck, R. The European Physical Journal C, Vol. 4, Issue 2 https://doi.org/10.1007/s100529800804	journal	June 1998
Two-photon production of dilepton pairs in peripheral heavy ion collisions Klein, Spencer R. Physical Review C, Vol. 97, Issue 5 https://doi.org/10.1103/PhysRevC.97.054903	journal	May 2018
Enhanced production of multi-strange hadrons in high-multiplicity proton–proton collisions Nature Physics, Vol. 13, Issue 6, p. 535-539 https://doi.org/10.1038/nphys4111	journal	April 2017
Inclusive $μ$ -Pair Production at 150 GeV by $π^{+}$ Mesons and Protons Anderson, K. J.; Henry, G. G.; McDonald, K. T. Physical Review Letters, Vol. 37, Issue 13 https://doi.org/10.1103/PhysRevLett.37.799	journal	September 1976
Measurement of dielectron production in central Pb-Pb collisions at $\sqrt{s_{NN}} = 2.76 TeV$ Acharya, S.; Acosta, F. T. -.; Adamová, D. Physical Review C, Vol. 99, Issue 2 https://doi.org/10.1103/PhysRevC.99.024002	journal	February 2019
Soft quark annihilation versus bremsstrahlung mechanisms of dilepton production ine +e− collisions Ftáčnik, J. Czechoslovak Journal of Physics, Vol. 33, Issue 9 https://doi.org/10.1007/BF01832344	journal	September 1983
Cold quark-gluon plasma and multiparticle production Van Hove, L. Annals of Physics, Vol. 192, Issue 1 https://doi.org/10.1016/0003-4916(89)90116-4	journal	May 1989
Production of direct e+e− pairs in proton-nucleus collisions at 13 GeV/c Mikamo, S.; Maki, A.; Ono, M. Physics Letters B, Vol. 106, Issue 5 https://doi.org/10.1016/0370-2693(81)90657-2	journal	November 1981
The vacuum structure in QCD and hadron-hadron scattering Nachtmann, O.; Reiter, A. Zeitschrift f�r Physik C: Particles and Fields, Vol. 24, Issue 3-4 https://doi.org/10.1007/BF01410367	journal	September 1984
Soft photons in hadron-hadron collisions: synchrotron radiation from the QCD vacuum? Botz, G. W.; Haberl, P.; Nachtmann, O. Zeitschrift für Physik C Particles and Fields, Vol. 67, Issue 1 https://doi.org/10.1007/BF01564830	journal	March 1995
Anomalous electron-pair production in 17-GeV/ c $π^{-} p$ collisions Adams, M. R.; Abshire, G.; Brown, C. Physical Review D, Vol. 27, Issue 9 https://doi.org/10.1103/PhysRevD.27.1977	journal	May 1983
The production of prompt positrons at low transverse momentum increases with the square of the associated charged multiplicity Åkesson, T.; Albrow, M. G.; Almehed, S. Physics Letters B, Vol. 192, Issue 3-4 https://doi.org/10.1016/0370-2693(87)90139-0	journal	July 1987
Detailed measurement of the $e^{+} e^{-}$ pair continuum in $p + p$ and $Au + Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV and implications for direct photon production Adare, A.; Afanasiev, S.; Aidala, C. Physical Review C, Vol. 81, Issue 3 https://doi.org/10.1103/PhysRevC.81.034911	journal	March 2010
Production of Muon Pairs by 150-GeV/ c $π^{+}$ and Protons Anderson, K. J.; Henry, G. G.; McDonald, K. T. Physical Review Letters, Vol. 36, Issue 5 https://doi.org/10.1103/PhysRevLett.36.237	journal	February 1976
Performance of the ALICE Time-Of-Flight detector at the LHC Akindinov, A.; Alici, A.; Agostinelli, A. The European Physical Journal Plus, Vol. 128, Issue 4 https://doi.org/10.1140/epjp/i2013-13044-x	journal	April 2013
Evidence of Pair Origin of Prompt Muons Kasha, H.; Kellogg, R. G.; Lauterbach, M. J. Physical Review Letters, Vol. 36, Issue 17 https://doi.org/10.1103/PhysRevLett.36.1007	journal	April 1976
Modification of the ρ meson detected by low-mass electron–positron pairs in central PbAu collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mn>158</mml:mn><mml:mi>A</mml:mi><mml:mtext> </mml:mtext><mml:mtext>GeV</mml:mtext><mml:mo stretchy="false">/</mml:mo><mml:mi>c</mml:mi></mml:math> Adamová, D.; Agakichiev, G.; Antończyk, D. Physics Letters B, Vol. 666, Issue 5 https://doi.org/10.1016/j.physletb.2008.07.104	journal	September 2008
Search for a common baryon source in high-multiplicity pp collisions at the LHC Acharya, S.; Adamová, D.; Adler, A. Physics Letters B, Vol. 811 https://doi.org/10.1016/j.physletb.2020.135849	journal	December 2020
Origin of the dimuon continuum and the space-time evolution of hadron collisions Černý, V.; Lichard, P.; Pišút, J. Physics Letters B, Vol. 70, Issue 1 https://doi.org/10.1016/0370-2693(77)90345-8	journal	September 1977
$$\pi ^{0}$$ π 0 and $$\eta $$ η meson production in proton-proton collisions at $$\sqrt{s}=8$$ s = 8 TeV Acharya, S.; Adam, J.; Adamová, D. The European Physical Journal C, Vol. 78, Issue 3 https://doi.org/10.1140/epjc/s10052-018-5612-8	journal	March 2018
A clear-cut test of low mass dilepton production mechanism in hadronic collisions Černý, V.; Lichard, P.; Pišút, J. Zeitschrift für Physik C Particles and Fields, Vol. 31, Issue 1 https://doi.org/10.1007/BF01559607	journal	March 1986
Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central $d + Au$ Collisions at $\sqrt{s_{N N}} = 200 GeV$ Adare, A.; Aidala, C.; Ajitanand, N. N. Physical Review Letters, Vol. 111, Issue 21 https://doi.org/10.1103/PhysRevLett.111.212301	journal	November 2013
The cold quark-gluon plasma as a source of very soft photons in high energy collisions Lichard, P.; Van Hove, L. Physics Letters B, Vol. 245, Issue 3-4 https://doi.org/10.1016/0370-2693(90)90698-6	journal	August 1990
Comparison of the soft-annihilation model of low-mass dilepton production with the data Černý, V.; Lichard, P.; Pišút, J. Physical Review D, Vol. 24, Issue 3 https://doi.org/10.1103/PhysRevD.24.652	journal	August 1981
Applicability of transverse mass scaling in hadronic collisions at energies available at the CERN Large Hadron Collider Altenkämper, Lucas; Bock, Friederike; Loizides, Constantin Physical Review C, Vol. 96, Issue 6 https://doi.org/10.1103/PhysRevC.96.064907	journal	December 2017
Low mass dilepton production in pp and pA collisions as a signature of the thermalization of hadronic matter Pavlenko, O. P.; Pišu̇;t, J. Physics Letters B, Vol. 220, Issue 1-2 https://doi.org/10.1016/0370-2693(89)90046-4	journal	March 1989
Di-electron spectrum at mid-rapidity in $p + p$ collisions at $\sqrt{s} = 200$ GeV Adamczyk, L.; Agakishiev, G.; Aggarwal, M. M. Physical Review C, Vol. 86, Issue 2 https://doi.org/10.1103/PhysRevC.86.024906	journal	August 2012
Low transverse momentum photon production in proton-nucleus collisions at 18 GeV/ c Tincknell, M. L.; Clark, R. L.; Woody, C. Physical Review C, Vol. 54, Issue 4 https://doi.org/10.1103/PhysRevC.54.1918	journal	October 1996
Low- $p_{T}$ $e^{+} e^{-}$ Pair Production in $Au + Au$ Collisions at $\sqrt{s_{N N}} = 200 GeV$ and $U + U$ Collisions at $\sqrt{s_{N N}} = 193 GeV$ at STAR Adam, J.; Adamczyk, L.; Adams, J. R. Physical Review Letters, Vol. 121, Issue 13 https://doi.org/10.1103/PhysRevLett.121.132301	journal	September 2018
Dimuon production in 15.5-GeV/ c $π p$ interactions and the observation of a low-mass continuum Haber, B.; Kogan, E.; Bunnell, K. Physical Review D, Vol. 22, Issue 9 https://doi.org/10.1103/PhysRevD.22.2107	journal	November 1980
Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at $$ \sqrt{\mathbf{s}} =\mathbf{5.02}$$s=5.02 and 13 TeV Acharya, S.; Adamová, D.; Adhya, S. P. The European Physical Journal C, Vol. 79, Issue 10 https://doi.org/10.1140/epjc/s10052-019-7350-y	journal	October 2019
Soft photon production in 450 GeV/cp-Be collisions Antos, J.; Beker, H.; Brons, S. Zeitschrift für Physik C Particles and Fields, Vol. 59, Issue 4 https://doi.org/10.1007/BF01562546	journal	December 1993
Production of K∗(892)0 and ϕ(1020) in pp collisions at $\sqrt{s}=7\ \mathrm{TeV}$ Abelev, B.; Adam, J.; Adamová, D. The European Physical Journal C, Vol. 72, Issue 10 https://doi.org/10.1140/epjc/s10052-012-2183-y	journal	October 2012
Dilepton mass spectra in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> collisions at <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml:mtext> GeV</mml:mtext></mml:math> and the contribution from open charm Adare, A.; Afanasiev, S.; Aidala, C. Physics Letters B, Vol. 670, Issue 4-5 https://doi.org/10.1016/j.physletb.2008.10.064	journal	January 2009
Multiplicity dependence of light-flavor hadron production in p p collisions at s = 7 TeV Acharya, S.; Acosta, F. T. -.; Adamová, D. Physical Review C, Vol. 99, Issue 2 https://doi.org/10.1103/PhysRevC.99.024906	journal	February 2019
ALICE: Physics Performance Report, Volume I Collaboration, Alice; Carminati, F.; Foka, P. Journal of Physics G: Nuclear and Particle Physics, Vol. 30, Issue 11 https://doi.org/10.1088/0954-3899/30/11/001	journal	October 2004
Bremsstrahlung of Very Low-Energy Quanta in Elementary Particle Collisions Low, F. E. Physical Review, Vol. 110, Issue 4 https://doi.org/10.1103/PhysRev.110.974	journal	May 1958
Blast-wave description of $Υ$ elliptic flow at energies available at the CERN Large Hadron Collider Reygers, Klaus; Schmah, Alexander; Berdnikova, Anastasia Physical Review C, Vol. 101, Issue 6 https://doi.org/10.1103/PhysRevC.101.064905	journal	June 2020
NA60 results on the ρ spectral function in In-In collisions Damjanovic, S. Nuclear Physics A, Vol. 783, Issue 1-4 https://doi.org/10.1016/j.nuclphysa.2006.11.015	journal	February 2007
Dielectron production in Au + Au collisions at $\sqrt{s_{N N}} = 200$ GeV Adare, A.; Aidala, C.; Ajitanand, N. N. Physical Review C, Vol. 93, Issue 1 https://doi.org/10.1103/PhysRevC.93.014904	journal	January 2016
Pion femtoscopy in $p$ $+$ $p$ collisions at $\sqrt{s} = 200$ GeV Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V. Physical Review C, Vol. 83, Issue 6 https://doi.org/10.1103/PhysRevC.83.064905	journal	June 2011
Low-mass lepton-pair production in p-Be collisions at 450 GeV/c Åkesson, T.; Almehed, S.; Angelis, A. L. S. Zeitschrift für Physik C Particles and Fields, Vol. 68, Issue 1 https://doi.org/10.1007/BF01579804	journal	March 1995

Similar Records

Measurement of dielectron production in central Pb-Pb collisions at

\sqrt{s_{NN}} = 2.76 TeV

Journal Article · Thu Feb 14 00:00:00 EST 2019 · Physical Review. C · OSTI ID:1809900

Acharya, S.; Acosta, F. T. -.; Adamová, D.; +1017 more

Measurement of the Cross Sections of

Ξ_{c}^{0}

and

Ξ_{c}^{+}

Baryons and of the Branching-Fraction Ratio

BR (Ξ_{c}^{0} \to Ξ^{-} e^{+} ν_{e}) / BR (Ξ_{c}^{0} \to Ξ^{-} π^{+})

p p

Collisions at

\sqrt{s} = 13 TeV

Journal Article · Tue Dec 28 00:00:00 EST 2021 · Physical Review Letters · OSTI ID:1809900

Acharya, S.; Adamová, D.; Adler, A.; +1023 more

Dielectron production in proton-proton and proton-lead collisions at

\sqrt{s_{NN}} = 5.02 TeV

Journal Article · Wed Nov 25 00:00:00 EST 2020 · Physical Review C · OSTI ID:1809900

Acharya, S.; Adamová, D.; Adler, A.; +1022 more

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
High-energy accelerators & colliders

Title: Soft-Dielectron Excess in Proton-Proton Collisions at s = 13 TeV

Citation Formats

References (73)

Similar Records

Related Subjects

Title: Soft-Dielectron Excess in Proton-Proton Collisions at $\sqrt{s} = 13 TeV$