Charged-particle nuclear modification factors in PbPb and pPb collisions at ?sNN=5.02 TeV

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dc.authoridPopov, Andrey/0000-0002-1207-0984
dc.authoridDe Filippis, Nicola/0000-0002-0625-6811
dc.authoridBARRILLON, Stephanie/0000-0002-7075-1673
dc.authoridBotta, Cristina/0000-0002-8072-795X
dc.authoridHelena, Bialkowska/0000-0002-5956-6258
dc.authoridKonecki, Marcin/0000-0001-9482-4841
dc.authoridRoskes, Jeffrey/0000-0001-8761-0490
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorThe CMS Collaboration
dc.date.accessioned2025-03-07T20:16:21Z
dc.date.available2025-03-07T20:16:21Z
dc.date.issued2017
dc.departmentÇağ Üniversitesi
dc.description.abstractThe spectra of charged particles produced within the pseudorapidity window vertical bar eta vertical bar < 1 at root s(NN) = 5 : 02 TeV are measured using 404 mu b(-1) of PbPb and 27.4 pb(-1) of pp data collected by the CMS detector at the LHC in 2015. The spectra are presented over the transverse momentum ranges spanning 0 : 5 < p(T) < 400 GeV in pp and 0 : 7 < p(T) < 400 GeV in PbPb collisions. The corresponding nuclear modification factor, R-AA, is measured in bins of collision centrality. The R-AA in the 5% most central collisions shows a maximal suppression by a factor of 7-8 in the p(T) region of 6-9 GeV. This dip is followed by an increase, which continues up to the highest p(T) measured, and approaches unity in the vicinity of p(T) = 200 GeV. The R-AA is compared to theoretical predictions and earlier experimental results at lower collision energies. The newly measured pp spectrum is combined with the pPb spectrum previously published by the CMS collaboration to construct the pPb nuclear modification factor, R-pA, up to 120 GeV. For p(T) > 20 GeV, R-pA exhibits weak momentum dependence and shows a moderate enhancement above unity.
dc.description.sponsorshipBMWFW (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq, (Brazil); CAPES, (Brazil); FAPERJ, (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS (China); MoST, (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER (Estonia); ERC IUT (Estonia); ERDF (Estonia); Academy of Finland, (Finland); MEC, (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG, (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NIH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP (Republic of Korea); NRF (Republic of Korea); LAS (Lithuania); MOE (Malaysia); UM (Malaysia); BUAP (Mexico); CINVESTAV (Mexico); CONACYT (Mexico); LNS, (Mexico); SEP, (Mexico); UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal); JINR (Dubna); MON, (Russia); RosAtom, (Russia); RAS (Russia); RFBR (Russia); MESTD (Serbia); SEIDI (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter (Thailand); IPST, (Thailand); STAR (Thailand); NSTDA (Thailand); TAEK (Turkey); TUBITAK (Turkey); NASU (Ukraine); SFFR (Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA); Marie-Curie programme (European Union); European Research Council (European Union); EPLANET (European Union); Leventis Foundation; A. P. Sloan Foundation; Alexander von Humboldt Foundation; Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans lIndustrie et dans lAgriculture (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; HOMING PLUS programme of the Foundation for Polish Science; European Union; Regional Development Fund; Mobility Plus programme of the Ministry of Science and Higher Education; National Science Center (Poland) [2014/14/M/ST2/00428, Opus 2013/11/B/ST2/04202, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, Sonata-bis 2012/07/E/ST2/01406]; Thalis programme - EU-ESF; Aristeia programm - EU-ESF; Greek NSRF; National Priorities Research Program by Qatar National Research Fund; Programa Clar in-COFUND del Principado de Asturias; Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University; Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); Welch Foundation [C-1845]; Direct For Mathematical & Physical Scien; Division Of Physics [1606321, 1506130, 1506168, 1624356] Funding Source: National Science Foundation; Division Of Physics; Direct For Mathematical & Physical Scien [1211067, 1352081, 1508869, 1151640] Funding Source: National Science Foundation; STFC [ST/N001273/1, ST/H000925/1, ST/M004775/1, PP/E000479/1] Funding Source: UKRI
dc.description.sponsorshipWe 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 centers 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); SENESCYT (Ecuador); 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); BUAP, CINVESTAV, CONACYT, LNS, 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).r Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans lIndustrie et dans lAgriculture (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 Mobility Plus programme of the Ministry of Science and Higher Education, the National Science Center (Poland), contracts Harmonia 2014/14/M/ST2/00428, Opus 2013/11/B/ST2/04202, 2014/13/B/ST2/02543 and 2014/15/B/ST2/03998, Sonata-bis 2012/07/E/ST2/01406; the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; the National Priorities Research Program by Qatar National Research Fund; the Programa Clar in-COFUND del Principado de Asturias; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University and the Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); and the Welch Foundation, contract C-1845.
dc.identifier.doi10.1007/JHEP04(2017)039
dc.identifier.issn1029-8479
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85017560557
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/JHEP04(2017)039
dc.identifier.urihttps://hdl.handle.net/20.500.12507/3055
dc.identifier.wosWOS:000399275400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of High Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20241226
dc.subjectHeavy Ion Experiments
dc.subjectQuark Gluon Plasma
dc.subjectRelativistic heavy ion physics
dc.titleCharged-particle nuclear modification factors in PbPb and pPb collisions at ?sNN=5.02 TeV
dc.typeArticle

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