Evidence of b-Jet quenching in PbPb collisions at root S-NN=2.76 TeV

Khachatryan, V.; Işıldak, Bora

dc.contributor.author	Khachatryan, V.
dc.contributor.author	Işıldak, Bora
dc.date.accessioned	2016-08-04T08:47:45Z
dc.date.available	2016-08-04T08:47:45Z
dc.date.issued	2014-09-26
dc.identifier.issn	1079-7114
dc.identifier.uri	http://hdl.handle.net/10679/4376
dc.identifier.uri	http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.132301
dc.description.abstract	The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (pT) range of 80–250 GeV/c, and within pseudorapidity \|η\|<2. The nuclear modification factor (RAA) calculated from these spectra shows a strong suppression in the b-jet yield in PbPb collisions relative to the yield observed in pp collisions at the same energy. The suppression persists to the largest values of pT studied, and is centrality dependent. The RAA is about 0.4 in the most central events, similar to previous observations for inclusive jets. This implies that jet quenching does not have a strong dependence on parton mass and flavor in the jet pT range studied.
dc.description.sponsorship	BMWF and FWF ; FNRS and FWO ; CNPq, CAPES, FAPERJ, and FAPESP ; MES ; CERN; CAS, MoST, and NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER, SF0690030s09 and ERDF ; Academy of Finland, MEC, and HIP ; CEA and CNRS/IN2P3 ; BMBF, DFG, and HGF ; GSRT ; OTKA and NKTH ; DAE and DST ; IPM ; SFI ; INFN ; NRF and WCU ; LAS ; CINVESTAV, CONACYT, SEP, and UASLP-FAI ; MBIE ; PAEC ; MSHE and NSC ; FCT ; JINR ; MON, RosAtom, RAS and RFBR ; MESTD ; SEIDI and CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter, IPST, STAR and NSTDA ; TUBITAK and TAEK ; NASU ; STFC ; DOE and NSF.
dc.language.iso	eng	en_US
dc.publisher	American Physical Society
dc.relation	info:turkey/grantAgreement/TUBITAK
dc.relation.ispartof	Physical Review Letters
dc.rights	restrictedAccess
dc.title	Evidence of b-Jet quenching in PbPb collisions at root S-NN=2.76 TeV	en_US
dc.type	Article	en_US
dc.peerreviewed	yes
dc.publicationstatus	published	en_US
dc.contributor.department	Özyeğin University
dc.contributor.authorID	(ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora
dc.contributor.ozuauthor	Işıldak, Bora
dc.creator	The CMS Collaboration
dc.identifier.volume	113
dc.identifier.issue	13
dc.identifier.wos	WOS:000344051400002
dc.identifier.doi	10.1103/PhysRevLett.113.132301
dc.subject.keywords	Quark-gluon plasma
dc.subject.keywords	Root-s(Nn)=2.76 Tev
dc.subject.keywords	Energy-loss
dc.subject.keywords	Momentum dependence
dc.subject.keywords	Transverse-momentum
dc.subject.keywords	Matter
dc.subject.keywords	Collaboration
dc.subject.keywords	Perspective
dc.subject.keywords	Tomography
dc.subject.keywords	Detector
dc.contributor.authorMale	1