Properties of $Z_c^{\pm}(3900)$ Produced in $p \bar p$ Collision

Victor Mukhamedovich Abazov , Braden Keim Abbott , Bannanje Sripath Acharya , Mark Raymond Adams , Todd Adams , James P Agnew , Guennadi D Alexeev , Georgiy D Alkhazov , Andrew K Alton , Andrew Warren Askew , Scott Atkins , Kamil Augsten , Volodymyr Aushev , Yegor Aushev , Carlos A Avila , Frederique Badaud (1) , Linda F Bagby , Boris Baldin , Dmitry V Bandurin , Sunanda Banerjee , Emanuela Barberis , Philip S Baringer , Jfrederick Bartlett , Ursula Rita Bassler (2) , Victor Bazterra , Alice L Bean , Marcia Begalli , Leo Bellantoni , Suman B Beri , Gregorio Bernardi (3) , Ralf Patrick Bernhard , Iain A Bertram , Marc Besancon (2) , Raymond Beuselinck , Pushpalatha C Bhat , Sudeep Bhatia , Vipin Bhatnagar , Gerald Charles Blazey , Susan K Blessing , Kenneth A Bloom , Amber S Boehnlein , Daniel Dooley Boline , Edward E Boos , Guennadi Borissov , Maryna Borysova , Andrew Brandt , Oleg Brandt , Michelle Brochmann , Raymond L Brock , Alan D Bross , Duncan Paul Brown (3) , Xue-Bing Bu , Marc Buehler , Volker Buescher , Viacheslav Yevgenyevich Bunichev , Sergey Burdin , Claus Peter Buszello , Enrique Camacho-Perez , Brendan Cameron Kieran Casey , Heriberto Castilla-Valdez , Seth Aaron Caughron , Subhendu Chakrabarti , Kwok Ming Leo Chan , Avdhesh Chandra , Emilien Chapon (2) , Guo Chen , Sung-Woong Cho , Suyong Choi , Brajesh C Choudhary , Selcuk Cihangir , Daniel R Claes , Justace Randall Clutter , Michael P Cooke , William Edward Cooper , Marjorie D Corcoran , Fabrice Couderc (2) , Marie-Claude Cousinou (4) , Jakub Cuth , David Cutts , Amitabha Das , Gavin John Davies , Sijbrand Jan de Jong , Eduard de La Cruz-Burelo , Frederic Deliot (2) , Regina Demina , Dmitri S Denisov , Sergei P Denisov , Satish Vijay Desai , Cecile Deterre , Kayle Otis Devaughan , Hthomas Diehl , Michael Diesburg , Pengfei Ding , Daaron M Dominguez , Alexey Drutskoy , Abhinav Kumar Dubey , Lev V Dudko , Arnaud Duperrin (4) , Suneel Dutt , Michael T Eads , Daniel L Edmunds , John A Ellison , Vdaniel Elvira , Yuji Enari (3) , Harold G Evans , Anatoly V Evdokimov , Valeri N Evdokimov , Alexandre Faure (2) , Lei Feng , Thomas Ferbel , Frank Fiedler , Frank Filthaut , Wade Cameron Fisher , Heugene Fisk , Michael R Fortner , Harald Fox , Jiri Franc , Stuart C Fuess , Peter H Garbincius , Aran Garcia-Bellido , Jose Andres Garcia-Gonzalez , Vladimir B Gavrilov , Weigang Geng (4) , Cecilia Elena Gerber , Yuri S Gershtein , George E Ginther , Olga Gogota , Georgy Anatolievich Golovanov , Paul D Grannis , Sebastien Greder (5) , Herbert B Greenlee , Gerald Jean Grenier (6) , Phillipe Luc Gris (1) , Jean-Francois Grivaz (7) , Alexander Grohsjean (2) , Stefan Gruenendahl , Martin Werner Gruenewald , Thibault Guillemin (7) , Gaston R Gutierrez , Phillip Gutierrez , Joseph Glenn Biddle Haley , Liang Han , Kristian Harder , Amnon Harel , John Michael Hauptman , Jonathan M Hays , Tim Head , Thomas Hebbeker , David R Hedin , Hatim Hegab , Ann Heinson , Ulrich Heintz , Carsten Hensel , Ivan Heredia-de La Cruz , Kenneth Richard Herner , Gavin G Hesketh , Michael D Hildreth , Robert James Hirosky , Trang Hoang , John D Hobbs , Bruce Hoeneisen , Julie Hogan , Mark Hohlfeld , Jenny Lyn Holzbauer , Ian James Howley , Zdenek Hubacek (2) , Vlastislav Hynek , Ia Iashvili , Yuriy Ilchenko , Robert A Illingworth , Albert S Ito , Shabnam Jabeen , Michel J Jaffre (7) , Ayesh Jayasinghe , Min-Soo Jeong , Richard L Jesik , Peng Jiang , Kenneth Arthur Johns , Emily Johnson , Marvin E Johnson , Alan M Jonckheere , Per Martin Jonsson , Jyoti Joshi , Andreas Werner Jung , Aurelio Juste , Eric Kajfasz (4) , Dmitriy y Karmanov , Ioannis Katsanos , Manbir Kaur , Robert Leo Patrick Kehoe , Smain Kermiche (4) , Norayr Khalatyan , Alexander Khanov , Avto Kharchilava , Yuri N Kharzheev , Ivan Lvovich Kiselevich , Jatinder M Kohli , Alexander V Kozelov , James Alexander Kraus , Ashish Kumar , Alexander Kupco , Tibor Kurca (6) , Valentin Alexandrovich Kuzmin , Sabine Wedam Lammers , Patrice Lebrun (6) , Hyeon-Seung Lee , Seh-Wook Lee , William M Lee , Xiaowen Lei , Jeremie Lellouch (3) , Dikai Li (3) , Hengne Li , Liang Li , Qi-Zhong Li , Jeong Ku Lim , Donald W Lincoln , James Thomas Linnemann , Vladimir V Lipaev , Ronald J Lipton , Huanzhao Liu , Yanwen Liu , Alexandre Lobodenko , Milos Lokajicek , Rafael Lopes de Sa , Rene Luna-Garcia , Adam Leonard Lyon , Arthur Ka Maciel , Romain Madar , Ricardo Magana-Villalba , Sudhir Malik , Vladimir L Malyshev , Jason Mansour , Jorge Martinez-Ortega , Robert L Mccarthy , Carrie Lynne Mcgivern , Melvin M Meijer , Alexander S Melnitchouk , Diego D Menezes , Pedro Galli Mercadante , Mikhail M Merkin , Arnd Meyer , Jorg Manfred Meyer , Florian Miconi (5) , Naba K Mondal , Michael James Mulhearn , Elemer Nagy (4) , Meenakshi Narain , Ruchika Nayyar , Homer A Neal , Juan Pablo Negret , Petr V Neustroev , Huong Thi Nguyen , Thomas P Nunnemann , Jose de Jesus Hernandez Orduna , Nicolas Ahmed Osman (4) , Arnab Pal , Neeti Parashar , Vivek Parihar , Sung Keun Park , Richard A Partridge , Nirmalya Parua , Abid Patwa , Bjoern Penning , Maxim Anatolyevich Perfilov , Reinhild Yvonne Fatima Peters , Konstantinos Petridis , Gianluca Petrillo , Pierre Petroff (7) , Marc-Andre Pleier , Vladimir M Podstavkov , Alexey V Popov , Michelle Prewitt , Darren Price , Nikolay N Prokopenko , Jianming Qian , Arnulf Quadt , Gene Breese Quinn , Peter N Ratoff , Ivan A Razumov , Isabelle Ripp-Baudot (5) , Flera Rizatdinova , Mandy Kathleen Rominsky , Anthony Ross , Christophe Royon , Paul Michael Rubinov , Randal C Ruchti , Gerard Sajot (8) , Alberto Sanchez-Hernandez , Michiel P Sanders , Angelo Souza Santos , David G Savage , Mykola Savitskyi , Hlee Sawyer , Timothy P Scanlon , Rdean Schamberger , Yury A Scheglov , Heidi M Schellman , Matthias Schott , Christian Schwanenberger , Reinhard H Schwienhorst , Jadranka Sekaric , Horst Severini , Elizaveta K Shabalina , Viacheslav V Shary (2) , Savanna Shaw , Andrey A Shchukin , Oleg Shkola , Vladislav J Simak , Patrick Louis Skubic , Paul F Slattery , Gregory R Snow , Joel Mark Snow , Scott Stuart Snyder , Stefan Soldner-Rembold , Lars Sonnenschein , Karel Soustruznik , Jan Stark (8) , Nazar Stefaniuk , Dina A Stoyanova , Michael G Strauss , Louise Suter , Peter V Svoisky , Maxim Titov (2) , Valeriy V Tokmenin , Yun-Tse Tsai , Dmitri Tsybychev , Boris Tuchming (2) , Christopher George T Tully , Lev Uvarov , Sergey L Uvarov , Sergey A Uzunyan , Richard J van Kooten , Willem M van Leeuwen , Nikos Varelas , Erich W Varnes , Igor A Vasilyev , Alexander Yurievich Verkheev , Leonid S Vertogradov , Marco Verzocchi , Mika Vesterinen , Didier Vilanova (2) , Petr Vokac , Horst D Wahl , Michael Hls Wang , Jadwiga Warchol , Gordon Thomas Watts , Mitchell R Wayne , Jonas Weichert , Leah Christine Welty-Rieger , Mark Richard James Williams , Graham Wallace Wilson , Markus Wobisch , Darien Robert Wood , Terence R Wyatt , Yunhe Xie , Ryuji Yamada , Siqi Yang , Takahiro Yasuda , Yuriy A Yatsunenko , Wanyu Ye , Zhenyu Ye , Hang Yin , Kin Yip , Sungwoo Youn , Jiaming Yu , Joseph Zennamo , Tianqi Gilbert Zhao , Bing Zhou , Junjie Zhu , Marek Zielinski , Daria Zieminska , Lidija Zivkovic (3)

1 LPC - Laboratoire de Physique de Clermont
2 DPhP - Département de Physique des Particules (ex SPP)
3 LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies
4 CPPM - Centre de Physique des Particules de Marseille
5 IPHC - Institut Pluridisciplinaire Hubert Curien
6 IPNL - Institut de Physique Nucléaire de Lyon
7 LAL - Laboratoire de l'Accélérateur Linéaire
8 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

We study the production of the exotic charged charmonium-like state $Z_c^{\pm}(3900)$ in $p \bar p$ collisions through the sequential process $\psi(4260) \rightarrow Z_c^{\pm}(3900) \pi^{\mp}$, $Z_c^{\pm}(3900) \rightarrow J/\psi \pi^{\pm}$. Using the subsample of candidates originating from semi-inclusive weak decays of $b$-flavored hadrons, we measure the invariant mass and natural width to be $M=3902.6^{+5.2}_{-5.0}{\rm \thinspace (stat)}^{+3.3}_{-1.4}{\rm \thinspace (syst)}$ MeV and $\Gamma=32 ^{+28}_{-21}{\rm \thinspace (stat)} ^{+26}_{-7}{\rm \thinspace (syst)}$ MeV, respectively. We search for prompt production of the $Z_c^{\pm}(3900)$ through the same sequential process. No significant signal is observed, and we set an upper limit of 0.66 at the 95\% credibility level on the ratio of prompt production to the production via $b$-hadron decays. The study is based on $10.4~\rm{fb^{-1}}$ of $p \overline p $ collision data collected by the D0 experiment at the Fermilab Tevatron collider.

Mots clés: anti-p p: scattering; anti-p p: colliding beams; decay: weak interaction; direct production; Y(4260): hadronic decay; mass spectrum: (J/psi(3100) pi+); mass spectrum: (J/psi(3100) pi-); particle: exotic; Z/c(3900): hadronic decay; mass: width; mass: measured; width: measured; semi-inclusive reaction; Batavia TEVATRON Coll; DZERO; experimental results; 1960 GeV-cms; Y(4260) --> Z/c(3900) pi; Z/c(3900) --> J/psi(3100) pi; M210.1; M210M; M210W

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

Victor Mukhamedovich Abazov, Braden Keim Abbott, Bannanje Sripath Acharya, Mark Raymond Adams, Todd Adams, et al.. Properties of $Z_c^{\pm}(3900)$ Produced in $p \bar p$ Collision. Physical Review D, 2019, 100, pp.012005. ⟨10.1103/PhysRevD.100.012005⟩. ⟨hal-02160632⟩