par Khachatryan, Vardan;Barria, Patrizia 
;Caillol, Cécile ;Clerbaux, Barbara ;De Lentdecker, Gilles ;Delannoy, Hugo ;Favart, Laurent ;Fasanella, Giuseppe ;Gay, Arnaud ;Grebenyuk, Anastasia ;Leonard, Alexandre ;Lenzi, Thomas ;Maerschalk, Thierry ;Marinov, Audrey ;Pernie, Luca ;Randle-Conde, Aidan Sean ;Reis, Thomas ;Seva, Tomislav ;Vander Velde, Catherine ;Vanlaer, Pascal ;Yonamine, Ryo ;Zenoni, Florian ;Zhang, Fengwangdong ;Brun, Hugues ;Karapostoli, Georgia ; [et al.]
Référence Physics letters. Section B, 754, page (59-80)
Publication Publié, 2016-03
;Caillol, Cécile ;Clerbaux, Barbara ;De Lentdecker, Gilles ;Delannoy, Hugo ;Favart, Laurent ;Fasanella, Giuseppe ;Gay, Arnaud ;Grebenyuk, Anastasia ;Leonard, Alexandre ;Lenzi, Thomas ;Maerschalk, Thierry ;Marinov, Audrey ;Pernie, Luca ;Randle-Conde, Aidan Sean ;Reis, Thomas ;Seva, Tomislav ;Vander Velde, Catherine ;Vanlaer, Pascal ;Yonamine, Ryo ;Zenoni, Florian ;Zhang, Fengwangdong ;Brun, Hugues ;Karapostoli, Georgia ; [et al.]Référence Physics letters. Section B, 754, page (59-80)
Publication Publié, 2016-03
Article révisé par les pairs
| Résumé : | We present a measurement of b jet transverse momentum (pT) spectra in proton-lead (pPb) collisions using a dataset corresponding to about 35 nb−1 collected with the CMS detector at the LHC. Jets from b quark fragmentation are found by exploiting the long lifetime of hadrons containing a b quark through tagging methods using distributions of the secondary vertex mass and displacement. Extracted cross sections for b jets are scaled by the effective number of nucleon–nucleon collisions and are compared to a reference obtained from PYTHIA simulations of pp collisions. The PYTHIA-based estimate of the nuclear modification factor is found to be 1.22±0.15(stat+syst pPb)±0.27(syst PYTHIA) averaged over all jets with pT between 55 and 400 GeV/c and with |
