Evidence for Simultaneous Production of J/ψ and ϒ Mesons

V M Abazov; B Abbott; B S Acharya; M Adams; T Adams; J P Agnew; G D Alexeev; G Alkhazov; A Alton; A Askew; S Atkins; K Augsten; V Aushev; C Avila; F Badaud; L Bagby; B Baldin; D V Bandurin; S Banerjee; E Barberis; P Baringer; J F Bartlett; U Bassler; V Bazterra; A Bean; M Begalli; L Bellantoni; S B Beri; G Bernardi; R Bernhard; I Bertram; M Besançon; R Beuselinck; P C Bhat; S Bhatia; V Bhatnagar; G Blazey; S Blessing; K Bloom; A Boehnlein; D Boline; E E Boos; G Borissov; M Borysova; A Brandt; O Brandt; R Brock; A Bross; D Brown; X B Bu; M Buehler; V Buescher; V Bunichev; S Burdin; C P Buszello; E Camacho-Pérez; B C K Casey; H Castilla-Valdez; S Caughron; S Chakrabarti; K M Chan; A Chandra; E Chapon; G Chen; S W Cho; S Choi; B Choudhary; S Cihangir; D Claes; J Clutter; M Cooke; W E Cooper; M Corcoran; F Couderc; M-C Cousinou; J Cuth; D Cutts; A Das; G Davies; S J de Jong; E De La Cruz-Burelo; F Déliot; R Demina; D Denisov; S P Denisov; S Desai; C Deterre; K DeVaughan; H T Diehl; M Diesburg; P F Ding; A Dominguez; A Dubey; L V Dudko; A Duperrin; S Dutt; M Eads; D Edmunds; J Ellison; V D Elvira; Y Enari; H Evans; A Evdokimov; V N Evdokimov; A Fauré; L Feng; T Ferbel; F Fiedler; F Filthaut; W Fisher; H E Fisk; M Fortner; H Fox; J Franc; S Fuess; P H Garbincius; A Garcia-Bellido; J A García-González; V Gavrilov; W Geng; C E Gerber; Y Gershtein; G Ginther; O Gogota; G Golovanov; P D Grannis; S Greder; H Greenlee; G Grenier; Ph Gris; J-F Grivaz; A Grohsjean; S Grünendahl; M W Grünewald; T Guillemin; G Gutierrez; P Gutierrez; J Haley; L Han; K Harder; A Harel; J M Hauptman; J Hays; T Head; T Hebbeker; D Hedin; H Hegab; A P Heinson; U Heintz; C Hensel; I Heredia-De La Cruz; K Herner; G Hesketh; M D Hildreth; R Hirosky; T Hoang; J D Hobbs; B Hoeneisen; J Hogan; M Hohlfeld; J L Holzbauer; I Howley; Z Hubacek; V Hynek; I Iashvili; Y Ilchenko; R Illingworth; A S Ito; S Jabeen; M Jaffré; A Jayasinghe; M S Jeong; R Jesik; P Jiang; K Johns; E Johnson; M Johnson; A Jonckheere; P Jonsson; J Joshi; A W Jung; A Juste; E Kajfasz; D Karmanov; I Katsanos; M Kaur; R Kehoe; S Kermiche; N Khalatyan; A Khanov; A Kharchilava; Y N Kharzheev; I Kiselevich; J M Kohli; A V Kozelov; J Kraus; A Kumar; A Kupco; T Kurča; V A Kuzmin; S Lammers; P Lebrun; H S Lee; S W Lee; W M Lee; X Lei; J Lellouch; D Li; H Li; L Li; Q Z Li; J K Lim; D Lincoln; J Linnemann; V V Lipaev; R Lipton; H Liu; Y Liu; A Lobodenko; M Lokajicek; R Lopes de Sa; R Luna-Garcia; A L Lyon; A K A Maciel; R Madar; R Magaña-Villalba; S Malik; V L Malyshev; J Mansour; J Martínez-Ortega; R McCarthy; C L McGivern; M M Meijer; A Melnitchouk; D Menezes; P G Mercadante; M Merkin; A Meyer; J Meyer; F Miconi; N K Mondal; M Mulhearn; E Nagy; M Narain; R Nayyar; H A Neal; J P Negret; P Neustroev; H T Nguyen; T Nunnemann; J Orduna; N Osman; J Osta; A Pal; N Parashar; V Parihar; S K Park; R Partridge; N Parua; A Patwa; B Penning; M Perfilov; Y Peters; K Petridis; G Petrillo; P Pétroff; M-A Pleier; V M Podstavkov; A V Popov; M Prewitt; D Price; N Prokopenko; J Qian; A Quadt; B Quinn; P N Ratoff; I Razumov; I Ripp-Baudot; F Rizatdinova; M Rominsky; A Ross; C Royon; P Rubinov; R Ruchti; G Sajot; A Sánchez-Hernández; M P Sanders; A S Santos; G Savage; M Savitskyi; L Sawyer; T Scanlon; R D Schamberger; Y Scheglov; H Schellman; M Schott; C Schwanenberger; R Schwienhorst; J Sekaric; H Severini; E Shabalina; V Shary; S Shaw; A A Shchukin; V Simak; P Skubic; P Slattery; D Smirnov; G R Snow; J Snow; S Snyder; S Söldner-Rembold; L Sonnenschein; K Soustruznik; J Stark; D A Stoyanova; M Strauss; L Suter; P Svoisky; M Titov; V V Tokmenin; Y-T Tsai; D Tsybychev; B Tuchming; C Tully; L Uvarov; S Uvarov; S Uzunyan; R Van Kooten; W M van Leeuwen; N Varelas; E W Varnes; I A Vasilyev; A Y Verkheev; L S Vertogradov; M Verzocchi; M Vesterinen; D Vilanova; P Vokac; H D Wahl; M H L S Wang; J Warchol; G Watts; M Wayne; J Weichert; L Welty-Rieger; M R J Williams; G W Wilson; M Wobisch; D R Wood; T R Wyatt; Y Xie; R Yamada; S Yang; T Yasuda; Y A Yatsunenko; W Ye; Z Ye; H Yin; K Yip; S W Youn; J M Yu; J Zennamo; T G Zhao; B Zhou; J Zhu; M Zielinski; D Zieminska; L Zivkovic; D0 Collaboration

doi:10.1103/PhysRevLett.116.082002

Evidence for Simultaneous Production of J/ψ and ϒ Mesons

Phys Rev Lett. 2016 Feb 26;116(8):082002. doi: 10.1103/PhysRevLett.116.082002. Epub 2016 Feb 25.

Authors

V M Abazov¹, B Abbott², B S Acharya³, M Adams⁴, T Adams⁵, J P Agnew⁶, G D Alexeev¹, G Alkhazov⁷, A Alton⁸, A Askew⁵, S Atkins⁹, K Augsten¹⁰, V Aushev¹¹, C Avila¹², F Badaud¹³, L Bagby¹⁴, B Baldin¹⁴, D V Bandurin¹⁵, S Banerjee³, E Barberis¹⁶, P Baringer¹⁷, J F Bartlett¹⁴, U Bassler¹⁸, V Bazterra⁴, A Bean¹⁷, M Begalli¹⁹, L Bellantoni¹⁴, S B Beri²⁰, G Bernardi²¹, R Bernhard²², I Bertram²³, M Besançon¹⁸, R Beuselinck²⁴, P C Bhat¹⁴, S Bhatia²⁵, V Bhatnagar²⁰, G Blazey²⁶, S Blessing⁵, K Bloom²⁷, A Boehnlein¹⁴, D Boline²⁸, E E Boos²⁹, G Borissov²³, M Borysova¹¹, A Brandt³⁰, O Brandt³¹, R Brock³², A Bross¹⁴, D Brown²¹, X B Bu¹⁴, M Buehler¹⁴, V Buescher³³, V Bunichev²⁹, S Burdin²³, C P Buszello³⁴, E Camacho-Pérez³⁵, B C K Casey¹⁴, H Castilla-Valdez³⁵, S Caughron³², S Chakrabarti²⁸, K M Chan³⁶, A Chandra³⁷, E Chapon¹⁸, G Chen¹⁷, S W Cho³⁸, S Choi³⁸, B Choudhary³⁹, S Cihangir¹⁴, D Claes²⁷, J Clutter¹⁷, M Cooke¹⁴, W E Cooper¹⁴, M Corcoran³⁷, F Couderc¹⁸, M-C Cousinou⁴⁰, J Cuth³³, D Cutts⁴¹, A Das⁴², G Davies²⁴, S J de Jong^{43

44}, E De La Cruz-Burelo³⁵, F Déliot¹⁸, R Demina⁴⁵, D Denisov¹⁴, S P Denisov⁴⁶, S Desai¹⁴, C Deterre⁶, K DeVaughan²⁷, H T Diehl¹⁴, M Diesburg¹⁴, P F Ding⁶, A Dominguez²⁷, A Dubey³⁹, L V Dudko²⁹, A Duperrin⁴⁰, S Dutt²⁰, M Eads²⁶, D Edmunds³², J Ellison⁴⁷, V D Elvira¹⁴, Y Enari²¹, H Evans⁴⁸, A Evdokimov⁴, V N Evdokimov⁴⁶, A Fauré¹⁸, L Feng²⁶, T Ferbel⁴⁵, F Fiedler³³, F Filthaut^{43

44}, W Fisher³², H E Fisk¹⁴, M Fortner²⁶, H Fox²³, J Franc¹⁰, S Fuess¹⁴, P H Garbincius¹⁴, A Garcia-Bellido⁴⁵, J A García-González³⁵, V Gavrilov⁴⁹, W Geng^{40

32}, C E Gerber⁴, Y Gershtein⁵⁰, G Ginther¹⁴, O Gogota¹¹, G Golovanov¹, P D Grannis²⁸, S Greder⁵¹, H Greenlee¹⁴, G Grenier⁵², Ph Gris¹³, J-F Grivaz⁵³, A Grohsjean¹⁸, S Grünendahl¹⁴, M W Grünewald⁵⁴, T Guillemin⁵³, G Gutierrez¹⁴, P Gutierrez², J Haley⁵⁵, L Han⁵⁶, K Harder⁶, A Harel⁴⁵, J M Hauptman⁵⁷, J Hays²⁴, T Head⁶, T Hebbeker⁵⁸, D Hedin²⁶, H Hegab⁵⁵, A P Heinson⁴⁷, U Heintz⁴¹, C Hensel⁵⁹, I Heredia-De La Cruz³⁵, K Herner¹⁴, G Hesketh⁶, M D Hildreth³⁶, R Hirosky¹⁵, T Hoang⁵, J D Hobbs²⁸, B Hoeneisen⁶⁰, J Hogan³⁷, M Hohlfeld³³, J L Holzbauer²⁵, I Howley³⁰, Z Hubacek^{10

18}, V Hynek¹⁰, I Iashvili⁶¹, Y Ilchenko⁴², R Illingworth¹⁴, A S Ito¹⁴, S Jabeen¹⁴, M Jaffré⁵³, A Jayasinghe², M S Jeong³⁸, R Jesik²⁴, P Jiang⁵⁶, K Johns⁶², E Johnson³², M Johnson¹⁴, A Jonckheere¹⁴, P Jonsson²⁴, J Joshi⁴⁷, A W Jung¹⁴, A Juste⁶³, E Kajfasz⁴⁰, D Karmanov²⁹, I Katsanos²⁷, M Kaur²⁰, R Kehoe⁴², S Kermiche⁴⁰, N Khalatyan¹⁴, A Khanov⁵⁵, A Kharchilava⁶¹, Y N Kharzheev¹, I Kiselevich⁴⁹, J M Kohli²⁰, A V Kozelov⁴⁶, J Kraus²⁵, A Kumar⁶¹, A Kupco⁶⁴, T Kurča⁵², V A Kuzmin²⁹, S Lammers⁴⁸, P Lebrun⁵², H S Lee³⁸, S W Lee⁵⁷, W M Lee¹⁴, X Lei⁶², J Lellouch²¹, D Li²¹, H Li¹⁵, L Li⁴⁷, Q Z Li¹⁴, J K Lim³⁸, D Lincoln¹⁴, J Linnemann³², V V Lipaev⁴⁶, R Lipton¹⁴, H Liu⁴², Y Liu⁵⁶, A Lobodenko⁷, M Lokajicek⁶⁴, R Lopes de Sa¹⁴, R Luna-Garcia³⁵, A L Lyon¹⁴, A K A Maciel⁵⁹, R Madar²², R Magaña-Villalba³⁵, S Malik²⁷, V L Malyshev¹, J Mansour³¹, J Martínez-Ortega³⁵, R McCarthy²⁸, C L McGivern⁶, M M Meijer^{43

44}, A Melnitchouk¹⁴, D Menezes²⁶, P G Mercadante⁶⁵, M Merkin²⁹, A Meyer⁵⁸, J Meyer³¹, F Miconi⁵¹, N K Mondal³, M Mulhearn¹⁵, E Nagy⁴⁰, M Narain⁴¹, R Nayyar⁶², H A Neal⁸, J P Negret¹², P Neustroev⁷, H T Nguyen¹⁵, T Nunnemann⁶⁶, J Orduna³⁷, N Osman⁴⁰, J Osta³⁶, A Pal³⁰, N Parashar⁶⁷, V Parihar⁴¹, S K Park³⁸, R Partridge⁴¹, N Parua⁴⁸, A Patwa⁶⁸, B Penning²⁴, M Perfilov²⁹, Y Peters⁶, K Petridis⁶, G Petrillo⁴⁵, P Pétroff⁵³, M-A Pleier⁶⁸, V M Podstavkov¹⁴, A V Popov⁴⁶, M Prewitt³⁷, D Price⁶, N Prokopenko⁴⁶, J Qian⁸, A Quadt³¹, B Quinn²⁵, P N Ratoff²³, I Razumov⁴⁶, I Ripp-Baudot⁵¹, F Rizatdinova⁵⁵, M Rominsky¹⁴, A Ross²³, C Royon⁶⁴, P Rubinov¹⁴, R Ruchti³⁶, G Sajot⁶⁹, A Sánchez-Hernández³⁵, M P Sanders⁶⁶, A S Santos⁵⁹, G Savage¹⁴, M Savitskyi¹¹, L Sawyer⁹, T Scanlon²⁴, R D Schamberger²⁸, Y Scheglov⁷, H Schellman^{70

71}, M Schott³³, C Schwanenberger⁶, R Schwienhorst³², J Sekaric¹⁷, H Severini², E Shabalina³¹, V Shary¹⁸, S Shaw⁶, A A Shchukin⁴⁶, V Simak¹⁰, P Skubic², P Slattery⁴⁵, D Smirnov³⁶, G R Snow²⁷, J Snow⁷², S Snyder⁶⁸, S Söldner-Rembold⁶, L Sonnenschein⁵⁸, K Soustruznik⁷³, J Stark⁶⁹, D A Stoyanova⁴⁶, M Strauss², L Suter⁶, P Svoisky², M Titov¹⁸, V V Tokmenin¹, Y-T Tsai⁴⁵, D Tsybychev²⁸, B Tuchming¹⁸, C Tully⁷⁴, L Uvarov⁷, S Uvarov⁷, S Uzunyan²⁶, R Van Kooten⁴⁸, W M van Leeuwen⁴³, N Varelas⁴, E W Varnes⁶², I A Vasilyev⁴⁶, A Y Verkheev¹, L S Vertogradov¹, M Verzocchi¹⁴, M Vesterinen⁶, D Vilanova¹⁸, P Vokac¹⁰, H D Wahl⁵, M H L S Wang¹⁴, J Warchol³⁶, G Watts⁷⁵, M Wayne³⁶, J Weichert³³, L Welty-Rieger⁷⁰, M R J Williams⁴⁸, G W Wilson¹⁷, M Wobisch⁹, D R Wood¹⁶, T R Wyatt⁶, Y Xie¹⁴, R Yamada¹⁴, S Yang⁵⁶, T Yasuda¹⁴, Y A Yatsunenko¹, W Ye²⁸, Z Ye¹⁴, H Yin¹⁴, K Yip⁶⁸, S W Youn¹⁴, J M Yu⁸, J Zennamo⁶¹, T G Zhao⁶, B Zhou⁸, J Zhu⁸, M Zielinski⁴⁵, D Zieminska⁴⁸, L Zivkovic²¹; D0 Collaboration

Affiliations

¹ Joint Institute for Nuclear Research, Dubna, Russia.
² University of Oklahoma, Norman, Oklahoma 73019, USA.
³ Tata Institute of Fundamental Research, Mumbai, India.
⁴ University of Illinois at Chicago, Chicago, Illinois 60607, USA.
⁵ Florida State University, Tallahassee, Florida 32306, USA.
⁶ The University of Manchester, Manchester M13 9PL, United Kingdom.
⁷ Petersburg Nuclear Physics Institute, St. Petersburg, Russia.
⁸ University of Michigan, Ann Arbor, Michigan 48109, USA.
⁹ Louisiana Tech University, Ruston, Louisiana 71272, USA.
¹⁰ Czech Technical University in Prague, Prague, Czech Republic.
¹¹ Taras Shevchenko National University of Kyiv, Kiev, Ukraine.
¹² Universidad de los Andes, Bogotá, Colombia.
¹³ LPC, Université Blaise Pascal, CNRS/IN2P3, Clermont, France.
¹⁴ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
¹⁵ University of Virginia, Charlottesville, Virginia 22904, USA.
¹⁶ Northeastern University, Boston, Massachusetts 02115, USA.
¹⁷ University of Kansas, Lawrence, Kansas 66045, USA.
¹⁸ CEA, Irfu, SPP, Saclay, France.
¹⁹ Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
²⁰ Panjab University, Chandigarh, India.
²¹ LPNHE, Universités Paris VI and VII, CNRS/IN2P3, Paris, France.
²² Physikalisches Institut, Universität Freiburg, Freiburg, Germany.
²³ Lancaster University, Lancaster LA1 4YB, United Kingdom.
²⁴ Imperial College London, London SW7 2AZ, United Kingdom.
²⁵ University of Mississippi, University, Mississippi 38677, USA.
²⁶ Northern Illinois University, DeKalb, Illinois 60115, USA.
²⁷ University of Nebraska, Lincoln, Nebraska 68588, USA.
²⁸ State University of New York, Stony Brook, New York 11794, USA.
²⁹ Moscow State University, Moscow, Russia.
³⁰ University of Texas, Arlington, Texas 76019, USA.
³¹ II. Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, Germany.
³² Michigan State University, East Lansing, Michigan 48824, USA.
³³ Institut für Physik, Universität Mainz, Mainz, Germany.
³⁴ Uppsala University, Uppsala, Sweden.
³⁵ CINVESTAV, Mexico City, Mexico.
³⁶ University of Notre Dame, Notre Dame, Indiana 46556, USA.
³⁷ Rice University, Houston, Texas 77005, USA.
³⁸ Korea Detector Laboratory, Korea University, Seoul, Korea.
³⁹ Delhi University, Delhi, India.
⁴⁰ CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France.
⁴¹ Brown University, Providence, Rhode Island 02912, USA.
⁴² Southern Methodist University, Dallas, Texas 75275, USA.
⁴³ Nikhef, Science Park, Amsterdam, The Netherlands.
⁴⁴ Radboud University Nijmegen, Nijmegen, The Netherlands.
⁴⁵ University of Rochester, Rochester, New York 14627, USA.
⁴⁶ Institute for High Energy Physics, Protvino, Russia.
⁴⁷ University of California Riverside, Riverside, California 92521, USA.
⁴⁸ Indiana University, Bloomington, Indiana 47405, USA.
⁴⁹ Institute for Theoretical and Experimental Physics, Moscow, Russia.
⁵⁰ Rutgers University, Piscataway, New Jersey 08855, USA.
⁵¹ IPHC, Université de Strasbourg, CNRS/IN2P3, Strasbourg, France.
⁵² IPNL, Université Lyon 1, CNRS/IN2P3, Villeurbanne, France and Université de Lyon, Lyon, France.
⁵³ LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France.
⁵⁴ University College Dublin, Dublin, Ireland.
⁵⁵ Oklahoma State University, Stillwater, Oklahoma 74078, USA.
⁵⁶ University of Science and Technology of China, Hefei, People's Republic of China.
⁵⁷ Iowa State University, Ames, Iowa 50011, USA.
⁵⁸ III. Physikalisches Institut A, RWTH Aachen University, Aachen, Germany.
⁵⁹ LAFEX, Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, Brazil.
⁶⁰ Universidad San Francisco de Quito, Quito, Ecuador.
⁶¹ State University of New York, Buffalo, New York 14260, USA.
⁶² University of Arizona, Tucson, Arizona 85721, USA.
⁶³ Institució Catalana de Recerca i Estudis Avançats (ICREA) and Institut de Física d'Altes Energies (IFAE), Barcelona, Spain.
⁶⁴ Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
⁶⁵ Universidade Federal do ABC, Santo André, Brazil.
⁶⁶ Ludwig-Maximilians-Universität München, München, Germany.
⁶⁷ Purdue University Calumet, Hammond, Indiana 46323, USA.
⁶⁸ Brookhaven National Laboratory, Upton, New York 11973, USA.
⁶⁹ LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, Grenoble, France.
⁷⁰ Northwestern University, Evanston, Illinois 60208, USA.
⁷¹ Oregon State University, Corvallis, Oregon 97331, USA.
⁷² Langston University, Langston, Oklahoma 73050, USA.
⁷³ Charles University, Faculty of Mathematics and Physics, Center for Particle Physics, Prague, Czech Republic.
⁷⁴ Princeton University, Princeton, New Jersey 08544, USA.
⁷⁵ University of Washington, Seattle, Washington 98195, USA.

PMID: 26967412
DOI: 10.1103/PhysRevLett.116.082002

Abstract

We report evidence for the simultaneous production of J/ψ and ϒ mesons in 8.1 fb^{-1} of data collected at sqrt[s]=1.96 TeV by the D0 experiment at the Fermilab pp[over ¯] Tevatron Collider. Events with these characteristics are expected to be produced predominantly by gluon-gluon interactions. In this analysis, we extract the effective cross section characterizing the initial parton spatial distribution, σ_{eff}=2.2±0.7(stat)±0.9(syst) mb.