Evidence of b -jet quenching in PbPb collisions at sNN =2.76TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104665

Title:	Evidence of b -jet quenching in PbPb collisions at sNN =2.76TeV
Authors:	林宗泰;Chatrchyan, S
Contributors:	理學院物理學系
Keywords:	Collisions;Flavours;Jets;Mathematical analysis;Nucleons;Partons;Quenching;Spectra
Date:	2014-09-22
Issue Date:	2026-04-23 11:55:04 (UTC+8)
Abstract:	摘要： 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 [eta]<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. 出版日期： 2014-09-26 出處： Physical review letters, 2014-09, Vol.113 (13) 資源來源： APS Journals 識別號： ISSN: 0031-9007 識別號： EISSN: 1079-7114 識別號： DOI: 10.1103/PhysRevLett.113.132301
Appears in Collections:	[Department of Physics] journal & Dissertation

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