Study of Υ(10753) decays to π+π−Υ(nS) final states at Belle II

Journal Article · Mon Jul 01 00:00:00 EDT 2024 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep07(2024)116· OSTI ID:2576086

Adachi, I.; Aggarwal, L.; Ahmed, H.; Aihara, H.; Akopov, N.; Aloisio, A.; Anh Ky, N.; Asner, D.; Atmacan, H.; Aushev, T.; Aushev, V.; Aversano, M.; Babu, V.; Bae, H.; Bahinipati, S.; Bambade, P.; Banerjee, Sw.; Bansal, S.; Barrett, M.; Baudot, J. ; Baur, A.; Beaubien, A.; Becherer, F.; Becker, J.; Bennett, J.; Bernlochner, F.; Bertacchi, V.; Bertemes, M.; Bertholet, E.; Bessner, M.; Bettarini, S.; Bhuyan, B.; Bianchi, F.; Bilka, T.; Biswas, D.; Bobrov, A.; Bodrov, D.; Bolz, A.; Bondar, A.; Bozek, A.; Bračko, M.; Branchini, P.; Browder, T.; Budano, A.; Bussino, S.; Campajola, M.; Cao, L.; Casarosa, G.; Cecchi, C.; Cerasoli, J.; Chang, M.; Chang, P.; Cheema, P.; Cheon, B.; Chilikin, K.; Chirapatpimol, K.; Cho, H.; Cho, K.; Cho, S.; Choi, S.; Choudhury, S.; Corona, L.; Das, S.; Dattola, F.; De La Cruz-Burelo, E.; De La Motte, S.; De Nardo, G.; De Nuccio, M.; De Pietro, G.; de Sangro, R.; Destefanis, M.; Dhamija, R.; Di Canto, A.; Di Capua, F.; Dingfelder, J.; Doležal, Z.; Dong, T.; Dorigo, M.; Dort, K.; Dreyer, S.; Dubey, S.; Dujany, G.; Ecker, P.; Eliachevitch, M.; Feichtinger, P.; Ferber, T.; Ferlewicz, D.; Fillinger, T.; Finck, C.; Finocchiaro, G.; Fodor, A.; Forti, F.; Frey, A.; Fulsom, B.; Gabrielli, A.; Ganiev, E.; Garcia-Hernandez, M.; Garg, R.; Gaudino, G.; Gaur, V.; Gaz, A.; Gellrich, A.; Ghevondyan, G.; Ghosh, D.; Ghumaryan, H.; Giakoustidis, G.; Giordano, R.; Giri, A.; Gobbo, B.; Godang, R.; Gogota, O.; Goldenzweig, P.; Gradl, W.; Grammatico, T.; Graziani, E.; Greenwald, D.; Gruberová, Z.; Gu, T.; Guan, Y.; Gudkova, K.; Halder, S.; Han, Y.; Hara, T.; Hayashii, H.; Hazra, S.; Hearty, C.; Hedges, M.; Heidelbach, A.; Heredia de la Cruz, I.; Hernández Villanueva, M.; Higuchi, T.; Hoek, M.; Hohmann, M.; Horak, P.; Hsu, C.; Humair, T.; Iijima, T.; Ipsita, N.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Jackson, P.; Jacobs, W.; Jang, E.; Ji, Q.; Jia, S.; Jin, Y.; Joo, K.; Junkerkalefeld, H.; Kakuno, H.; Kalita, D.; Kaliyar, A.; Kandra, J.; Kang, K.; Kang, S.; Karyan, G.; Kawasaki, T.; Keil, F.; Kiesling, C.; Kim, C.; Kim, D.; Kim, K.; Kim, Y.; Kindo, H.; Kinoshita, K.; Kodyš, P.; Koga, T.; Kohani, S.; Kojima, K.; Korobov, A.; Korpar, S.; Kovalenko, E.; Kowalewski, R.; Kraetzschmar, T.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumar, M.; Kumara, K.; Kunigo, T.; Kuzmin, A.; Kwon, Y.; Lacaprara, S.; Lai, Y.; Lam, T.; Lanceri, L.; Lange, J.; Laurenza, M.; Leboucher, R.; Le Diberder, F.; Lee, M.; Levit, D.; Li, C.; Li, L.; Li, Y.; Li, Y.; Libby, J.; Liu, M.; Liu, Q.; Liu, Z.; Liventsev, D.; Longo, S.; Lueck, T.; Lyu, C.; Ma, Y.; Maggiora, M.; Maharana, S.; Maiti, R.; Maity, S.; Mancinelli, G.; Manfredi, R.; Manoni, E.; Mantovano, M.; Marcantonio, D.; Marcello, S.; Marinas, C.; Martel, L.; Martellini, C.; Martini, A.; Martinov, T.; Massaccesi, L.; Masuda, M.; Matsuoka, K.; Matvienko, D.; Maurya, S.; McKenna, J.; Mehta, R.; Meier, F.; Merola, M.; Metzner, F.; Miller, C.; Mirra, M.; Miyabayashi, K.; Miyake, H.; Mizuk, R.; Mohanty, G.; Molina-Gonzalez, N.; Mondal, S.; Moneta, S.; Moser, H.; Mrvar, M.; Mussa, R.; Nakamura, I.; Nakazawa, Y.; Narimani Charan, A.; Naruki, M.; Narwal, D.; Natkaniec, Z.; Natochii, A.; Nayak, L.; Nayak, M.; Nazaryan, G.; Niebuhr, C.; Nishida, S.; Ogawa, S.; Onishchuk, Y.; Ono, H.; Onuki, Y.; Oskin, P.; Otani, F.; Pakhlov, P.; Pakhlova, G.; Panta, A.; Pardi, S.; Parham, K.; Park, H.; Park, S.; Paschen, B.; Passeri, A.; Patra, S.; Paul, S.; Pedlar, T.; Peschke, R.; Pestotnik, R.; Piccolo, M.; Piilonen, L.; Pinna Angioni, G.; Podesta-Lerma, P.; Podobnik, T.; Pokharel, S.; Praz, C.; Prell, S.; Prencipe, E.; Prim, M.; Purwar, H.; Rados, P.; Raeuber, G.; Raiz, S.; Rauls, N.; Reif, M.; Reiter, S.; Remnev, M.; Ripp-Baudot, I.; Rizzo, G.; Robertson, S.; Roehrken, M.; Roney, J.; Rostomyan, A.; Rout, N.; Russo, G.; Sanders, D.; Sandilya, S.; Santelj, L.; Sato, Y.; Savinov, V.; Scavino, B.; Schwanda, C.; Seino, Y.; Selce, A.; Senyo, K.; Serrano, J.; Sevior, M.; Sfienti, C.; Shan, W.; Shen, C.; Shi, X.; Shillington, T.; Shimasaki, T.; Shiu, J.; Shtol, D.; Shwartz, B.; Sibidanov, A.; Simon, F.; Singh, J.; Skorupa, J.; Sobie, R.; Sobotzik, M.; Soffer, A.; Sokolov, A.; Solovieva, E.; Spataro, S.; Spruck, B.; Starič, M.; Stavroulakis, P.; Stefkova, S.; Stroili, R.; Sumihama, M.; Sumisawa, K.; Sutcliffe, W.; Svidras, H.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Tittel, O.; Tiwary, R.; Tonelli, D.; Torassa, E.; Trabelsi, K.; Tsaklidis, I.; Uchida, M.; Ueda, I.; Uglov, T.; Unger, K.; Unno, Y.; Uno, K.; Uno, S.; Urquijo, P.; Ushiroda, Y.; Vahsen, S.; van Tonder, R.; Varvell, K.; Veronesi, M.; Vinokurova, A.; Vismaya, V.; Vitale, L.; Vobbilisetti, V.; Volpe, R.; Wach, B.; Wakai, M.; Wallner, S.; Wang, E.; Wang, M.; Wang, X.; Wang, Z.; Warburton, A.; Watanuki, S.; Wessel, C.; Won, E.; Xu, X.; Yabsley, B.; Yamada, S.; Yang, S.; Yelton, J.; Yin, J.; Yoshihara, K.; Yuan, C.; Yusa, Y.; Zani, L.; Zhang, B.; Zhang, Y.; Zhilich, V.; Zhou, Q.; Zhou, X.; Zhukova, V.

Abstract

We present an analysis of the processe⁺e⁻→π⁺π⁻Υ(nS) (wheren= 1, 2, or 3) reconstructed in 19.6 fb⁻¹of Belle II data during a special run of the SuperKEKB collider at four energy points near the peak of the Υ(10753) resonance. By analyzing the mass distribution of theπ⁺π⁻Υ(nS) system and the Born cross sections of thee⁺e⁻→π⁺π⁻Υ(nS) process, we report the first observation of Υ(10753) decays to theπ⁺π⁻Υ(1S) andπ⁺π⁻Υ(2S) final states, and find no evidence for decays toπ⁺π⁻Υ(3S). Possible intermediate states in theπ⁺π⁻Υ(1S,2S) transitions are also investigated, and no evidence for decays proceeding via the$$$$ {\pi}^{\mp }{Z}_b^{\pm } $$$$ ${\pi }^{\mp }{Z}_b^{\pm }$ orf₀(980)Υ(nS) intermediate states is found. We measure Born cross sections for thee⁺e⁻→π⁺π⁻Υ(nS) process that, combined with results from Belle, obtain the mass and width of Υ(10753) to be (10756.6 ± 2.7 ± 0.9) MeV/c²and (29.0 ± 8.8 ± 1.2) MeV, respectively. The relative ratios of the Born cross sections at the Υ(10753) resonance peak are also reported for the first time.

• Research Organization: Wayne State Univ., Detroit, MI (United States); Univ. of Florida, Gainesville, FL (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Duke Univ., Durham, NC (United States); Univ. of South Carolina, Columbia, SC (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); Univ. of Hawaii, Honolulu, HI (United States); Univ. of Cincinnati, OH (United States); Univ. of Mississippi, Oxford, MS (United States); Univ. of Louisville, KY (United States); Univ. of South Alabama, Mobile, AL (United States); Battelle Memorial Institute, Columbus, OH (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: SC0019230; SC0010073; SC0011784; SC0009973; SC0010007; SC0010504; SC0010118; AC06-76RL01830; SC0023470; SC0012704; SC0022350; SC0009824; SC0021274; SC0007983
• OSTI ID: 2576086
• Journal Information: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 7 Vol. 2024; ISSN 1029-8479
• Publisher: Springer Nature
• Country of Publication: United States
• Language: EN

Related Subjects

Physics