Study of central exclusive $$\pi^+\pi^-$$ production in proton-proton collisions at $$\sqrt{s} =$$ 5.02 and 13 TeV
- Yerevan Phys. Inst.
- Vienna, OAW
- Vienna, OAW; TU Vienna
- Minsk, Inst. Nucl. Problems
- Antwerp U.
- Vrije U., Brussels
- Brussels U.
- Gent U.
- Gent U.; IRFU, Saclay
- Louvain U.
- Rio de Janeiro, CBPF
- Rio de Janeiro State U.
- Rio de Janeiro State U.; U. Campinas
- Rio de Janeiro State U.; Rio Grande do Sul U.
- Rio de Janeiro State U.; Pelotas U.
- Sao Paulo, IFT
- Sao Paulo, IFT; ABC Federal U.
- Sofiya, Inst. Nucl. Res.
- Sofiya U.
- BeiHang U.; Brussels U.
- BeiHang U.
- Tsinghua U., Beijing
- Beijing, Inst. High Energy Phys.
- Beijing, Inst. High Energy Phys.; Beijing, GUCAS
- Peking U.
- Andes U., Bogota
- Split Tech. U.
- Split U.
- Boskovic Inst., Zagreb
- Boskovic Inst., Zagreb; Moscow, ITEP
- Cyprus U.
- Charles U.; Dubna, JINR
- Charles U.
- Quito, Escuela Politecnica Natl.
- San Francisco de Quito U.
- Cairo, Acad. Sci. Res. Tech.; British U. in Egypt; Fayoum U.
- Cairo, Acad. Sci. Res. Tech.; Fayoum U.
- NICPB, Tallinn
- Helsinki U.
- Helsinki Inst. of Phys.
- Lappeenranta U. Tech.
- IRFU, Saclay
- IRFU, Saclay; Purdue U.
- Ecole Polytechnique
- Strasbourg, IPHC; Haute Alsace U.
- Strasbourg, IPHC
- CC, Villeurbanne
- Lyon, IPN
- GTU, Tbilisi; Tbilisi State U.
- Tbilisi State U.; Dubna, JINR
- Aachen, Tech. Hochsch.
- Aachen, Tech. Hochsch.; Erzincan U.
- Aachen, Tech. Hochsch.; CERN
- DESY
- DESY; Aachen, Tech. Hochsch.
- DESY; Hamburg U.
- DESY; Brandenburg Tech. U.
- Hamburg U.
- KIT, Karlsruhe, EKP
- KIT, Karlsruhe, EKP; CERN
- Democritos Nucl. Res. Ctr.
- Athens U.
- Natl. Tech. U., Athens
- Ioannina U.
- Eotvos U.; U. Debrecen, Inst. Phys.
- Eotvos U.
- Budapest, RMKI
- Budapest, RMKI; Debrecen, Inst. Nucl. Res.
- Budapest, RMKI; Eotvos U.
- Debrecen, Inst. Nucl. Res.
- Debrecen, Inst. Nucl. Res.; U. Debrecen, Inst. Phys.
- U. Debrecen, Inst. Phys.
- EKU KRC, Gyongyos
- Bangalore, Indian Inst. Sci.
- Bhubaneswar, NISER; Indian Inst. Tech., Bhubaneswar
- Bhubaneswar, NISER
- Bhubaneswar, NISER; Bhubaneswar, Inst. Phys.
- Panjab U.
- Delhi U.
- Saha Inst.
- Saha Inst.; Visva Bharati U.
- Indian Inst. Tech., Madras
- Bhabha Atomic Res. Ctr.
- TIFR, Mumbai, DHEP
- IISER, Pune
- IPM, Tehran; Isfahan Tech. U.
- IPM, Tehran
- University Coll., Dublin
- INFN, Bari; Bari U.
- INFN, Bari
- INFN, Bari; Bari Polytechnic
- INFN, Bologna
- INFN, Bologna; Bologna U.
- INFN, Catania; Catania U.
- INFN, Catania
- INFN, Florence
- INFN, Florence; Florence U.
- INFN, Florence; Siena U.
- Frascati
- INFN, Genoa; U. Genoa
- INFN, Genoa
- INFN, Milan Bicocca
- INFN, Milan Bicocca; Milan Bicocca U.
- INFN, Milan Bicocca; Milan Bicocca U.; CERN
- INFN, Naples
- INFN, Naples; Basilicata U., Potenza
- INFN, Naples; Naples U.
- INFN, Naples; Guglielmo Marconi U.; CERN
- INFN, Naples; CERN
- INFN, Padua
- INFN, Padua; Padua U.
- INFN, Pavia
- INFN, Pavia; Pavia U.
- INFN, Perugia; Perugia U.
- INFN, Perugia
- INFN, Pisa
- INFN, Pisa; Pisa, Scuola Normale Superiore
- INFN, Pisa; Pisa U.
- INFN, Rome
- INFN, Rome; Rome U.
- INFN, Turin; Turin U.
- INFN, Turin; Piemonte Orientale U., Novara
- INFN, Turin
- INFN, Trieste
- INFN, Trieste; Trieste U.
- CHEP, Taegu
- Chonnam Natl. U.
- Hanyang U.
- Korea U.
- Kyung Hee U.
- Sejong U.
- Seoul Natl. U.
- Seoul U.
- Sungkyunkwan U.
- Riga Tech. U.
- Vilnius U.
- Malaya U.
- Malaya U.; MOSTI, Malaysian Nucl. Agency, Kajang
- Sonora U.
- CINVESTAV, IPN
- CINVESTAV, IPN; Conacyt, Mexico
- Iberoamericana U.
- Puebla U., Inst. Fis.
- San Luis Potosi U.
- Montenegro U.
- Auckland U.
- Canterbury U.
- Quaid-i-Azam U.
- AGH-UST, Cracow
- NCBJ, Swierk
- Warsaw U.
- Warsaw U.; Warsaw U. of Tech.
- LIP, Lisbon
- Dubna, JINR
- Dubna, JINR; Moscow Phys. Eng. Inst.
- St. Petersburg, INP
- St. Petersburg, INP; St. Petersburg Polytechnic Inst.
- St. Petersburg, INP; Florida U.
- Moscow, INR
- Moscow, ITEP
- Moscow, ITEP; Imperial Coll., London
- Moscow, MIPT
- Moscow Phys. Eng. Inst.; Lebedev Inst.
- Moscow Phys. Eng. Inst.
- Lebedev Inst.
- Lebedev Inst.; Moscow Phys. Eng. Inst.
- Moscow State U.
- Novosibirsk State U.; Novosibirsk, IYF
- Serpukhov, IHEP
- Tomsk Polytechnic U.
- Tomsk State U.
- VINCA Inst. Nucl. Sci., Belgrade; Belgrade U.
- VINCA Inst. Nucl. Sci., Belgrade
- Madrid, CIEMAT
- Madrid, Autonoma U.
- Oviedo U.
- Cantabria Inst. of Phys.
- Colombo U.
- Ruhuna U.
- CERN
- CERN; INFN, Pavia
- CERN; Brandenburg Tech. U.
- CERN; TU Vienna
- CERN; Athens U.
- PSI, Villigen; Zurich U.
- PSI, Villigen
- Zurich, ETH
- Zurich U.
- Zurich U.; Stefan Meyer Inst. Subatomare Phys.
- Taiwan, Natl. Central U.
- Taiwan, Natl. Taiwan U.
- Chulalongkorn U.
- Cukurova U.; Gaziosmanpasa U.
- Cukurova U.
- Cukurova U.; Beykent U.
- Cukurova U.; Istanbul Aydin U.
- Cukurova U.; Mersin U.
- Cukurova U.; Piri Reis U., Istanbul
- Cukurova U.; Adiyaman U.
- Middle East Tech. U., Ankara; Ozyegin U.
- Middle East Tech. U., Ankara; Izmir Inst. Tech.
- Middle East Tech. U., Ankara
- Bogazici U.
- Bogazici U.; Marmara U.
- Bogazici U.; Kafkas U.
- Bogazici U.; Istanbul U.
- Bogazici U.; Istanbul Bilgi U.
- Istanbul, Tech. U.
- Istanbul, Tech. U.; Hacettepe U.
- Inst. Scintill. Mat., Kharkiv
- Kharkov, KIPT
- Bristol U.
- Rutherford
- Rutherford; Southampton U.
- Imperial Coll., London
- Imperial Coll., London; Monash U.
- Imperial Coll., London; CERN
- Brunel U.
- Baylor U.
- Catholic U. America
- Alabama U.
- Boston U.
- Brown U.
- Brown U.; Bethel Coll.
- Brown U.; Karamanoglu Mehmetbey U., Karaman
- UC, Davis
- UCLA
- UC, Riverside
- UC, San Diego
- UC, Santa Barbara
- Caltech
- Carnegie Mellon U.
- Colorado U.
- Cornell U.
- Cornell U.; Vilnius U.
- Fermilab
- Florida U.
- Florida Intl. U.
- Florida State U.
- Florida Inst. Tech.
- Illinois U., Chicago
- Iowa U.
- Iowa U.; Beykent U.
- Iowa U.; Bingöl U.
- Iowa U.; GTU, Tbilisi
- Iowa U.; Sinop U.
- Iowa U.; Mimar Sinan U.
- Johns Hopkins U.
- Kansas U.
- Kansas State U.
- LLNL, Livermore
- Maryland U.
- MIT
- Minnesota U.
- Mississippi U.
- Nebraska U.
- SUNY, Buffalo
- Northeastern U.
- Northwestern U.
- Notre Dame U.
- Notre Dame U.; Dubna, JINR
- Ohio State U.
- Princeton U.
- Puerto Rico U., Mayaguez
- Purdue U.
- Purdue U., Calumet
- Rice U.
- Rochester U.
- Rockefeller U.
- Rutgers U., Piscataway
- Tennessee U.
- Texas A-M; Texas A&M U. Qatar, Doha
- Texas A-M
- Texas A-M; CHEP, Taegu
- Texas Tech.
- Vanderbilt U.
- Virginia U.
- Wayne State U.
- Wisconsin U., Madison
Central exclusive and semiexclusive production of pairs is measured with the CMS detector in proton-proton collisions at the LHC at center-of-mass energies of 5.02 and 13TeV. The theoretical description of these nonperturbative processes, which have not yet been measured in detail at the LHC, poses a significant challenge to models. The two pions are measured and identified in the CMS silicon tracker based on specific energy loss, whereas the absence of other particles is ensured by calorimeter information. The total and differential cross sections of exclusive and semiexclusive central production are measured as functions of invariant mass, transverse momentum, and rapidity of the system in the fiducial region defined as transverse momentum and pseudorapidity . The production cross sections for the four resonant channels [inline-graphic not available: see fulltext], , [inline-graphic not available: see fulltext], and [inline-graphic not available: see fulltext]are extracted using a simple model. These results represent the first measurement of this process at the LHC collision energies of 5.02 and 13TeV.
- Research Organization:
- ABC Federal U.; AGH-UST, Cracow; Aachen, Tech. Hochsch.; Adiyaman U.; Alabama U.; Andes U., Bogota; Antwerp U.; Athens U.; Auckland U.; Bangalore, Indian Inst. Sci.; Bari Polytechnic; Bari U.; Basilicata U., Potenza; Baylor U.; BeiHang U.; Beijing, GUCAS; Beijing, Inst. High Energy Phys.; Belgrade U.; Bethel Coll.; Beykent U.; Bhabha Atomic Res. Ctr.; Bhubaneswar, Inst. Phys.; Bhubaneswar, NISER; Bingöl U.; Bogazici U.; Bologna U.; Boskovic Inst., Zagreb; Boston U.; Brandenburg Tech. U.; Bristol U.; British U. in Egypt; Brown U.; Brunel U.; Brussels U.; Budapest, RMKI; CC, Villeurbanne; CERN; CHEP, Taegu; CINVESTAV, IPN; Cairo, Acad. Sci. Res. Tech.; Caltech; Cantabria Inst. of Phys.; Canterbury U.; Carnegie Mellon U.; Catania U.; Catholic U. America; Charles U.; Chonnam Natl. U.; Chulalongkorn U.; Colombo U.; Colorado U.; Conacyt, Mexico; Cornell U.; Cukurova U.; Cyprus U.; DESY; Debrecen, Inst. Nucl. Res.; Delhi U.; Democritos Nucl. Res. Ctr.; Dubna, JINR; EKU KRC, Gyongyos; Ecole Polytechnique; Eotvos U.; Erzincan U.; Fayoum U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Florence U.; Florida Inst. Tech.; Florida Intl. U.; Florida State U.; Florida U.; Frascati; GTU, Tbilisi; Gaziosmanpasa U.; Gent U.; Guglielmo Marconi U.; Hacettepe U.; Hamburg U.; Hanyang U.; Haute Alsace U.; Helsinki Inst. of Phys.; Helsinki U.; IISER, Pune; INFN, Bari; INFN, Bologna; INFN, Catania; INFN, Florence; INFN, Genoa; INFN, Milan Bicocca; INFN, Naples; INFN, Padua; INFN, Pavia; INFN, Perugia; INFN, Pisa; INFN, Rome; INFN, Trieste; INFN, Turin; IPM, Tehran; IRFU, Saclay; Iberoamericana U.; Illinois U., Chicago; Imperial Coll., London; Indian Inst. Tech., Bhubaneswar; Indian Inst. Tech., Madras; Inst. Scintill. Mat., Kharkiv; Ioannina U.; Iowa U.; Isfahan Tech. U.; Istanbul Aydin U.; Istanbul Bilgi U.; Istanbul U.; Istanbul, Tech. U.; Izmir Inst. Tech.; Johns Hopkins U.; KIT, Karlsruhe, EKP; Kafkas U.; Kansas State U.; Kansas U.; Karamanoglu Mehmetbey U., Karaman; Kharkov, KIPT; Korea U.; Kyung Hee U.; LIP, Lisbon; Lappeenranta U. Tech.; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lebedev Inst.; Louvain U.; Lyon, IPN; MIT; MOSTI, Malaysian Nucl. Agency, Kajang; Madrid, Autonoma U.; Madrid, CIEMAT; Malaya U.; Marmara U.; Maryland U.; Mersin U.; Middle East Tech. U., Ankara; Milan Bicocca U.; Mimar Sinan U.; Minnesota U.; Minsk, Inst. Nucl. Problems; Mississippi U.; Monash U.; Montenegro U.; Moscow Phys. Eng. Inst.; Moscow State U.; Moscow, INR; Moscow, ITEP; Moscow, MIPT; NCBJ, Swierk; NICPB, Tallinn; Naples U.; Natl. Tech. U., Athens; Nebraska U.; Northeastern U.; Northwestern U.; Notre Dame U.; Novosibirsk State U.; Novosibirsk, IYF; Ohio State U.; Oviedo U.; Ozyegin U.; PSI, Villigen; Padua U.; Panjab U.; Pavia U.; Peking U.; Pelotas U.; Perugia U.; Piemonte Orientale U., Novara; Piri Reis U., Istanbul; Pisa U.; Pisa, Scuola Normale Superiore; Princeton U.; Puebla U., Inst. Fis.; Puerto Rico U., Mayaguez; Purdue U.; Purdue U., Calumet; Quaid-i-Azam U.; Quito, Escuela Politecnica Natl.; Rice U.; Riga Tech. U.; Rio Grande do Sul U.; Rio de Janeiro State U.; Rio de Janeiro, CBPF; Rochester U.; Rockefeller U.; Rome U.; Ruhuna U.; Rutgers U., Piscataway; Rutherford; SUNY, Buffalo; Saha Inst.; San Francisco de Quito U.; San Luis Potosi U.; Sao Paulo, IFT; Sejong U.; Seoul Natl. U.; Seoul U.; Serpukhov, IHEP; Siena U.; Sinop U.; Sofiya U.; Sofiya, Inst. Nucl. Res.; Sonora U.; Southampton U.; Split Tech. U.; Split U.; St. Petersburg Polytechnic Inst.; St. Petersburg, INP; Stefan Meyer Inst. Subatomare Phys.; Strasbourg, IPHC; Sungkyunkwan U.; TIFR, Mumbai, DHEP; TU Vienna; Taiwan, Natl. Central U.; Taiwan, Natl. Taiwan U.; Tbilisi State U.; Tennessee U.; Texas A&M U. Qatar, Doha; Texas A-M; Texas Tech.; Tomsk Polytechnic U.; Tomsk State U.; Trieste U.; Tsinghua U., Beijing; Turin U.; U. Campinas; U. Debrecen, Inst. Phys.; U. Genoa; UC, Davis; UC, Riverside; UC, San Diego; UC, Santa Barbara; UCLA; Univ. of Colorado, Boulder, CO (United States); University Coll., Dublin; VINCA Inst. Nucl. Sci., Belgrade; Vanderbilt U.; Vienna, OAW; Vilnius U.; Virginia U.; Visva Bharati U.; Vrije U., Brussels; Warsaw U.; Warsaw U. of Tech.; Wayne State U.; Wisconsin U., Madison; Yerevan Phys. Inst.; Zurich U.; Zurich, ETH
- Sponsoring Organization:
- Kavli Foundation; National Science Foundation (NSF); Nvidia Corporation; SuperMicro Corporation; US Department of Energy; USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); Welch Foundation; Weston Havens Foundation
- Contributing Organization:
- CMS Collaboration
- Grant/Contract Number:
- AC02-07CH11359; SC0010005
- OSTI ID:
- 1606559
- Report Number(s):
- CERN-EP-2020-005; CMS-FSQ-16-006; FERMILAB-PUB-20-137-CMS; oai:inspirehep.net:1784063; arXiv:2003.02811
- Journal Information:
- Eur.Phys.J.C, Journal Name: Eur.Phys.J.C Journal Issue: 8 Vol. 80
- Country of Publication:
- United States
- Language:
- English
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