Published August 10, 2016 | Version Published + Submitted
Journal Article Open

Measurement of the inelastic cross section in proton–lead collisions at √SNN = 5.02 TeV

Abstract

The inelastic hadronic cross section in proton–lead collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV is measured with the CMS detector at the LHC. The data sample, corresponding to an integrated luminosity of L=12.6±0.4 nb^(−1), has been collected with an unbiased trigger for inclusive particle production. The cross section is obtained from the measured number of proton–lead collisions with hadronic activity produced in the pseudorapidity ranges 3<η<5 and/or −5<η<−3, corrected for photon-induced contributions, experimental acceptance, and other instrumental effects. The inelastic cross section is measured to be σ_(inel)(pPb)=2061±3(stat)±34(syst)±72(lumi) mb. Various Monte Carlo generators, commonly used in heavy ion and cosmic ray physics, are found to reproduce the data within uncertainties. The value of σ_(inel)(pPb is compatible with that expected from the proton–proton cross section at 5.02 TeV scaled up within a simple Glauber approach to account for multiple scatterings in the lead nucleus, indicating that further net nuclear corrections are small.

Additional Information

© 2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 13 September 2015; Received in revised form 11 June 2016; Accepted 12 June 2016; Available online 16 June 2016. Editor: M. Doser. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MOST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the Alfred P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS programme of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the OPUS programme of the National Science Center (Poland); the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; the National Priorities Research Program by Qatar National Research Fund; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand); and the Welch Foundation, contract C-1845.

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Submitted - 1509.03893v2.pdf

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Additional details

Additional titles

Alternative title
Measurement of the inelastic cross section in proton-lead collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV

Identifiers

Eprint ID
73484
Resolver ID
CaltechAUTHORS:20170113-103448968

Related works

Funding

Bundesministerium für Wissenschaft, Forschung und Wirtschaft (BMWFW)
FWF Der Wissenschaftsfonds
Fonds de la Recherche Scientifique (FNRS)
Fonds Wetenschappelijk Onderzoek (FWO)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)
Bulgarian Ministry of Education and Science
European Organization for Nuclear Research (CERN)
Chinese Academy of Sciences (CAS)
Ministry of Science and Technology, China
National Natural Science Foundation of China
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Croatian Ministry of Science, Education and Sport
Croatian Science Foundation
Research Promotion Foundation, Cyprus
Estonian Ministry of Education and Research
Estonian Research Council
European Regional Development Fund, Estonia
Academy of Finland
Ministry of Education and Culture, Finland
Helsinki Institute of Physics (HIP)
Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA)
Centre National de la Recherche Scientifique (CNRS)
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
Bundesministerium für Bildung und Forschung (BMBF)
Deutsche Forschungsgemeinschaft (DFG)
Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)
General Secretariat for Research and Technology (GSRT)
Hungarian Scientific Research Fund (OTKA)
National Innovation Office, Hungary
Department of Atomic Energy, India
Department of Science and Technology, India
Institute for Studies in Theoretical Physics and Mathematics, Iran
Science Foundation, Ireland
Istituto Nazionale di Fisica Nucleare (INFN)
Ministry of Science, ICT and Future Planning, Korea
National Research Foundation of Korea
Lithuanian Academy of Sciences
Ministry of Education, Malaysia
University of Malaya, Malaysia
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
Consejo Nacional de Ciencia y Tecnología (CONACYT)
Secretaría de Educación Pública (SEP)
Universidad Autónoma de San Luis Potosí Inicio-Facultad de Ingeniería (UASLP-FAI)
Ministry of Business, Innovation and Employment, New Zealand
Pakistan Atomic Energy Commission
Ministry of Science and Higher Education, Poland
National Science Centre, Poland
Fundação para a Ciência e a Tecnologia (FCT)
Joint Institute for Nuclear Research (JINR)
Ministry of Education and Science of the Russian Federation
RosAtom, Russia
Russian Academy of Sciences
Russian Foundation for Basic Research
Ministry of Education, Science and Technological Development of Serbia
Secretaría for Research, Development and Innovation (SEIDI)
Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN)
Swiss Funding Agencies, Switzerland
Ministry of Science and Technology, Taipei
Thailand Center of Excellence in Physics
Institute for the Promotion of Teaching Science and Technology of Thailand
Special Task Force for Activating Research, Thailand
National Science and Technology Development Agency of Thailand
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)
Türkiye Atom Enerjisi Kurumu (TAEK)
National Academy of Sciences of Ukraine
State Fund for Fundamental Researches, Ukraine
Science and Technology Facilities Council (STFC)
Department of Energy (DOE)
NSF
Marie-Curie Programme
European Research Council
EPLANET
Leventis Foundation
Alfred P. Sloan Foundation
Alexander von Humboldt Foundation
Belgian Federal Science Policy Office
Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
Council of Science and Industrial Research, India
Foundation for Polish Science HOMING PLUS Programme
European Union, Regional Development Fund
National Science Center, Poland, OPUS Programme
Compagnia di San Paolo (Torino)
Consorzio per la Fisica (Trieste)
Ministero dell'Istruzione, dell'Università della Ricerca (MIUR)
20108T4XTM
Thalis Programme
Aristeia Programme
European Union, European Social Fund
National Strategic Reference Framework (NSRF)
Qatar National Research Fund National Priorities Research Program
Chulalongkorn University, Thailand
Welch Foundation
C-1845
SCOAP3

Dates

Created
2017-01-18
Created from EPrint's datestamp field
Updated
2021-11-11
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