Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV

CERN, Switzerland; The CMS collaboration

doi:10.1016/j.physletb.2017.06.053

Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at s_NN=5.02 TeV

CERN, Switzerland
, The CMS collaboration

Yerevan Physics Institute
Institut für Hochenergiephysik
Vienna University of Technology
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National Centre for Particle and High Energy Physics
University of Antwerp
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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

32 Citations (Scopus)

Résumé

The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of s_NN=5.02TeV, as well as results from charm quark jets in proton–proton (pp) collisions at s=2.76 and 5.02TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at s_NN=5.02TeV of R_pA=0.92±0.07(stat)±0.11(syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.

langue originale	Anglais
Pages (de - à)	306-329
Nombre de pages	24
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	772
Les DOIs	https://doi.org/10.1016/j.physletb.2017.06.053
état	Publié - 10 sept. 2017

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10.1016/j.physletb.2017.06.053

Contient cette citation

@article{2b786b82bb2646f5b4da13f9f4eb7509,

title = "Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV",

abstract = "The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV, as well as results from charm quark jets in proton–proton (pp) collisions at s=2.76 and 5.02TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at sNN=5.02TeV of RpA=0.92±0.07(stat)±0.11(syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.",

keywords = "CMS, Charm-tagging, Heavy ions, Heavy-flavor",

author = "\{CERN, Switzerland\} and \{The CMS collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and N. Rad and B. Rahbaran and H. Rohringer and J. Schieck and J. Strauss and W. Waltenberger and Wulz, \{C. E.\} and O. Dvornikov and V. Makarenko and V. Zykunov and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and A. Zghiche and F. Beaudette and C. Charlot and O. Davignon and \{Granier de Cassagnac\}, R. and M. Nguyen and C. Ochando and P. Paganini and R. Salerno and Y. Sirois and A. Zabi and Sauvan, \{J. B.\} and \{De Wit\}, A.",

note = "Publisher Copyright: {\textcopyright} 2017 The Author(s)",

year = "2017",

month = sep,

day = "10",

doi = "10.1016/j.physletb.2017.06.053",

language = "English",

volume = "772",

pages = "306--329",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

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TY - JOUR

T1 - Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV

AU - CERN, Switzerland

AU - The CMS collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rad, N.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Strauss, J.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Dvornikov, O.

AU - Makarenko, V.

AU - Zykunov, V.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Zghiche, A.

AU - Beaudette, F.

AU - Charlot, C.

AU - Davignon, O.

AU - Granier de Cassagnac, R.

AU - Nguyen, M.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Sirois, Y.

AU - Zabi, A.

AU - Sauvan, J. B.

AU - De Wit, A.

PY - 2017/9/10

Y1 - 2017/9/10

N2 - The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV, as well as results from charm quark jets in proton–proton (pp) collisions at s=2.76 and 5.02TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at sNN=5.02TeV of RpA=0.92±0.07(stat)±0.11(syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.

AB - The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV, as well as results from charm quark jets in proton–proton (pp) collisions at s=2.76 and 5.02TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at sNN=5.02TeV of RpA=0.92±0.07(stat)±0.11(syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.

KW - CMS

KW - Charm-tagging

KW - Heavy ions

KW - Heavy-flavor

U2 - 10.1016/j.physletb.2017.06.053

DO - 10.1016/j.physletb.2017.06.053

M3 - Article

AN - SCOPUS:85032331636

SN - 0370-2693

VL - 772

SP - 306

EP - 329

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV

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Contient cette citation

Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at s_NN=5.02 TeV