Observation of double J=ψ meson production in pPb collisions at √sNN p = 8.16 TeV

CMS Collaboration

doi:10.1103/PhysRevD.110.092002

Observation of double J=ψ meson production in pPb collisions at √sNN p = 8.16 TeV

CMS Collaboration

Yerevan Physics Institute
Yerevan State University
Institut für Hochenergiephysik
Indian Institute of Technology Madras
Vienna University of Technology
University of Antwerp
Technology and Maritime Transport
Vrjie Universiteit Brussel
Ghent University
Université Libre de Bruxelles
Korea University
University of Louvain
Centro Brasileiro de Pesquisas Fisicas
Rua São Francisco de Xavier
University of Campinas (UNICAMP)
Universidade Federal do Rio Grande do Sul
UFMS
São Paulo State University
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Sofia
Universidad de Tarapacá
Beihang University
Tsinghua University
Nanjing Normal University
University of Iowa
Institute of High Energy Physics, Chinese Academy of Sciences
University of Chinese Academy of Sciences
China Center of Advanced Science and Technology World Laboratory
China Spallation Neutron Source
California Institute of Technology
European Organization for Nuclear Research
University of Florida
Massachusetts Institute of Technology
State Key Laboratory of Nuclear Physics and Technology
c/o DESY
South China Normal University
Kyung Hee University
Sun Yat-Sen University
University of Science and Technology of China
Henan Normal University
Florida State University
Fudan University
Zhejiang University
Universidad de Los Andes, Colombia
Universidad de Antioquia
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Faculty of Science, University of Split
Ruđer Bošković Institute
University of Cyprus
Charles University
Universidad San Francisco de Quito
Egyptian Network of High Energy Physics
Zewail City of Science and Technology
British University in Egypt
Ain Shams University
Fayoum University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
LUT University
Université Paris-Saclay
Purdue University
Ip Paris
Université de Strasbourg
Université de Haute Alsace
Université Paris-Sud
Institut de Physique des 2 Infinis de Lyon
Istinye University
Georgian Technical University
RWTH Aachen University
University of California, San Diego
The University of the State of Amazonas
Saha Institute of Nuclear Physics
Wayne State University
Universität Hamburg
Bergische Universität Gesamthochschule Wuppertal
Joint Faculty of the Brandenburg University of Technology Cottbus Senftenberg
Research Centre Julich
Institute of Meteorology and Climate Research
NCSR Demokritos
University of Athens
National Technical University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
Universitatea Babes-Bolyai — Facultatea de Fizica
Eötvös Loránd University
Faculty of Science
University of Debrecen
Eszterhazy Karoly University
Panjab University
Punjab Agricultural University
Tata Institute of Fundamental Research, Mumbai
University of Delhi
University of Visva-Bharati
Indian Institute of Science
University of Wisconsin-Madison
An OCC of Homi Bhabha National Institute
IIT Bhubaneswar
Institute of Physics Bhubaneswar
Indian Institute of Science Education and Research (IISER)
University of Hyderabad
Isfahan University of Technology
Sharif University of Technology
Institute for Research in Fundamental Sciences (IPM)
University of Science and Technology of Mazandaran, Behshahr
Arak University
University College Dublin
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Politecnico di Bari
Helwan University
INFN Sezione di Bologna
University of Bologna
ENEA Climate Modeling and Impacts
INFN Sezione di Catania
Università degli Studi di Catania
CSFNSM
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Florence
LNF-INFN
Università degli Studi Guglielmo Marconi
Sezione di Genova
University of Genoa
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
INFN Sezione di Napoli
University of Naples Federico II
Università degli Studi della Basilicata
INFN
Fermi National Accelerator Laboratory
University of Padova
Laboratori Nazionali di Legnaro
INFN Sezione di Pavia
University of Pavia
INFN Sezione di Perugia
University of Perugia
International School for Advanced Studies (SISSA/ISAS)
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Scuola Normale Superiore di Pisa
University of Pisa
University of Siena
Sezione di Roma
University of Rome
INFN Sezione di Torino
University of Turin
Laboratory of Molecular Pathology
INFN Sezione di Trieste
University of Trieste
Kyungpook National University
Seoul National University
University of California, Santa Barbara
Sungkyunkwan University
Texas Tech University
Department of Mathematics and Physics—GWNU
Chonnam National University
Texas A&M University
Hanyang University
Sejong University
University of Illinois at Chicago
University of Seoul
Yonsei University
American University of the Middle East
Kuwait University
Riga Technical University
University of Latvia (LU)
Vilnius University
University Malaya
Universiti Kebangsaan Malaysia
Universidad de Sonora
CINVESTAV-IPN
Consejo Nacional de Ciencia y Tecnología
Universidad Iberoamericana
Benemerita Universidad Autonoma de Puebla
University of Montenegro
University of Canterbury
Quaid-i-Azam University
Agh University of Science and Technology Faculty of Computer Science
National Centre for Nuclear Research
University of Warsaw
Warsaw University of Technology
Lisboa
University of Belgrade
University of Belgrade
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
Universidad Autónoma de Madrid
University of Oviedo
CSIC-Univ. Cantabria
University of Colombo
Eastern University, Sri Lanka
University of Ruhuna
ENAC-IIC-GEL
Paul Scherrer Institut
University of Zurich
ETH Zurich
Stefan Meyer Institute for Subatomic Physics (SMI)
National Central University
National Taiwan University
Chulalongkorn University
Cukurova University
Near East University
Konya Technical University
Izmir Bakircay University
Adiyaman University
Middle East Technical University (METU)
Bozok Universitetesi Rektörlügü
Bogazici University
Marmara University
Milli Savunma University
Kafkas University
Istanbul Technical University
stanbul Okan University
Hacettepe University
Istanbul University
Erzincan University
Istanbul University — Cerrahpasa
Yildiz Technical University
Academy of Science of Ukraine
Kharkov Institute of Physics and Technology
University of Bristol
CCLRC Rutherford Appleton Laboratory
University of Southampton
Imperial College London
IPPP Durham University
Monash University
Brunel University London
Baylor University
Catholic University of America
University of Alabama
Boston University
Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
Bethel University
Karamanoğlu Mehmetbey University
University of California, Davis
University of California, Los Angeles
University of California, Riverside
Carnegie Mellon University
University of Colorado Boulder
Cornell University
The United States Naval Academy
Florida Institute of Technology
Bingol University
Sinop University
Erciyes University
Johns Hopkins University
University of Kansas
Horia Hulubei National Institute of Physics and Nuclear Engineering
Kansas State University
University of Maryland, College Park
University of Minnesota Twin Cities
University of Nebraska-Lincoln
University at Buffalo, The State University of New York
Northeastern University
Northwestern University
University of Notre Dame
The Ohio State University
Princeton University
University of Puerto Rico
Purdue University Northwest
Rice University
University of Rochester
Rutgers University–New Brunswick
University of Tennessee
Texas A&M University at Qatar
Vanderbilt University
University of Virginia
Institute of Nuclear Physics of the Uzbekistan Academy of Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

The first observation of the concurrent production of two Formula Presented mesons in proton-nucleus collisions is presented. The analysis is based on a proton-lead (Formula Presented) data sample recorded at a nucleon-nucleon center-of-mass energy of 8.16 TeV by the CMS experiment at the CERN LHC and corresponding to an integrated luminosity of Formula Presented. The two Formula Presented mesons are reconstructed in their Formula Presented decay channels with transverse momenta Formula Presented and rapidity Formula Presented. Events where one of the Formula Presented mesons is reconstructed in the dielectron channel are also considered in the search. The Formula Presented process is observed with a significance of 5.3 standard deviations. The measured inclusive fiducial cross section, using the four-muon channel alone, is Formula Presented. A fit of the data to the expected rapidity separation for pairs of Formula Presented mesons produced in single (SPS) and double (DPS) parton scatterings yields Formula Presented and Formula Presented, respectively. This latter result can be transformed into a lower bound on the effective DPS cross section, closely related to the squared average interparton transverse separation in the collision, of Formula Presented at 95% confidence level.

Original language	English
Article number	092002
Journal	Physical Review D
Volume	110
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.110.092002
Publication status	Published - 1 Nov 2024

Access to Document

10.1103/PhysRevD.110.092002

Cite this

@article{52c59b19657d4fecbdd9907ff72afd8b,

title = "Observation of double J=ψ meson production in pPb collisions at √sNN p = 8.16 TeV",

abstract = "The first observation of the concurrent production of two Formula Presented mesons in proton-nucleus collisions is presented. The analysis is based on a proton-lead (Formula Presented) data sample recorded at a nucleon-nucleon center-of-mass energy of 8.16 TeV by the CMS experiment at the CERN LHC and corresponding to an integrated luminosity of Formula Presented. The two Formula Presented mesons are reconstructed in their Formula Presented decay channels with transverse momenta Formula Presented and rapidity Formula Presented. Events where one of the Formula Presented mesons is reconstructed in the dielectron channel are also considered in the search. The Formula Presented process is observed with a significance of 5.3 standard deviations. The measured inclusive fiducial cross section, using the four-muon channel alone, is Formula Presented. A fit of the data to the expected rapidity separation for pairs of Formula Presented mesons produced in single (SPS) and double (DPS) parton scatterings yields Formula Presented and Formula Presented, respectively. This latter result can be transformed into a lower bound on the effective DPS cross section, closely related to the squared average interparton transverse separation in the collision, of Formula Presented at 95\% confidence level.",

author = "\{CMS Collaboration\} and A. Hayrapetyan and A. Tumasyan and W. Adam and Andrejkovic, \{J. W.\} and T. Bergauer and S. Chatterjee and K. Damanakis and M. Dragicevic and Hussain, \{P. S.\} and M. Jeitler and N. Krammer and A. Li and D. Liko and I. Mikulec and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and M. Sonawane and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and Darwish, \{M. R.\} and T. Janssen and \{Van Laer\}, T. and \{Van Mechelen\}, P. and N. Breugelmans and J. D{\textquoteright}Hondt and S. Dansana and \{De Moor\}, A. and M. Delcourt and F. Heyen and S. Lowette and I. Makarenko and D. M{\"u}ller and S. Tavernier and M. Tytgat and \{Van Onsem\}, \{G. P.\} and \{Van Putte\}, S. and D. Vannerom and B. Bilin and B. Clerbaux and Das, \{A. K.\} and F. Beaudette and A. Cappati and \{Granier de Cassagnac\}, R. and M. Nguyen and C. Ochando and R. Salerno and A. Zabi and A. Zghiche",

note = "Publisher Copyright: {\textcopyright} 2024 CERN, for the CMS Collaboration.",

year = "2024",

month = nov,

day = "1",

doi = "10.1103/PhysRevD.110.092002",

language = "English",

volume = "110",

journal = "Physical Review D",

issn = "2470-0010",

number = "9",

}

TY - JOUR

T1 - Observation of double J=ψ meson production in pPb collisions at √sNN p = 8.16 TeV

AU - CMS Collaboration

AU - Hayrapetyan, A.

AU - Tumasyan, A.

AU - Adam, W.

AU - Andrejkovic, J. W.

AU - Bergauer, T.

AU - Chatterjee, S.

AU - Damanakis, K.

AU - Dragicevic, M.

AU - Hussain, P. S.

AU - Jeitler, M.

AU - Krammer, N.

AU - Li, A.

AU - Liko, D.

AU - Mikulec, I.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Schwarz, D.

AU - Sonawane, M.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Darwish, M. R.

AU - Janssen, T.

AU - Van Laer, T.

AU - Van Mechelen, P.

AU - Breugelmans, N.

AU - D’Hondt, J.

AU - Dansana, S.

AU - De Moor, A.

AU - Delcourt, M.

AU - Heyen, F.

AU - Lowette, S.

AU - Makarenko, I.

AU - Müller, D.

AU - Tavernier, S.

AU - Tytgat, M.

AU - Van Onsem, G. P.

AU - Van Putte, S.

AU - Vannerom, D.

AU - Bilin, B.

AU - Clerbaux, B.

AU - Das, A. K.

AU - Beaudette, F.

AU - Cappati, A.

AU - Granier de Cassagnac, R.

AU - Nguyen, M.

AU - Ochando, C.

AU - Salerno, R.

AU - Zabi, A.

AU - Zghiche, A.

PY - 2024/11/1

Y1 - 2024/11/1

N2 - The first observation of the concurrent production of two Formula Presented mesons in proton-nucleus collisions is presented. The analysis is based on a proton-lead (Formula Presented) data sample recorded at a nucleon-nucleon center-of-mass energy of 8.16 TeV by the CMS experiment at the CERN LHC and corresponding to an integrated luminosity of Formula Presented. The two Formula Presented mesons are reconstructed in their Formula Presented decay channels with transverse momenta Formula Presented and rapidity Formula Presented. Events where one of the Formula Presented mesons is reconstructed in the dielectron channel are also considered in the search. The Formula Presented process is observed with a significance of 5.3 standard deviations. The measured inclusive fiducial cross section, using the four-muon channel alone, is Formula Presented. A fit of the data to the expected rapidity separation for pairs of Formula Presented mesons produced in single (SPS) and double (DPS) parton scatterings yields Formula Presented and Formula Presented, respectively. This latter result can be transformed into a lower bound on the effective DPS cross section, closely related to the squared average interparton transverse separation in the collision, of Formula Presented at 95% confidence level.

AB - The first observation of the concurrent production of two Formula Presented mesons in proton-nucleus collisions is presented. The analysis is based on a proton-lead (Formula Presented) data sample recorded at a nucleon-nucleon center-of-mass energy of 8.16 TeV by the CMS experiment at the CERN LHC and corresponding to an integrated luminosity of Formula Presented. The two Formula Presented mesons are reconstructed in their Formula Presented decay channels with transverse momenta Formula Presented and rapidity Formula Presented. Events where one of the Formula Presented mesons is reconstructed in the dielectron channel are also considered in the search. The Formula Presented process is observed with a significance of 5.3 standard deviations. The measured inclusive fiducial cross section, using the four-muon channel alone, is Formula Presented. A fit of the data to the expected rapidity separation for pairs of Formula Presented mesons produced in single (SPS) and double (DPS) parton scatterings yields Formula Presented and Formula Presented, respectively. This latter result can be transformed into a lower bound on the effective DPS cross section, closely related to the squared average interparton transverse separation in the collision, of Formula Presented at 95% confidence level.

UR - https://www.scopus.com/pages/publications/105026920843

U2 - 10.1103/PhysRevD.110.092002

DO - 10.1103/PhysRevD.110.092002

M3 - Article

AN - SCOPUS:105026920843

SN - 2470-0010

VL - 110

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092002

ER -

Observation of double J=ψ meson production in pPb collisions at √sNN p = 8.16 TeV

Abstract

Access to Document

Other files and links

Fingerprint

Cite this