Research output: Contribution to journal › Article › peer-review
Study of Jet Quenching with Z+jet Correlations in Pb-Pb and pp Collisions at s NN=5.02 TeV. / The CMS collaboration.
In: Physical Review Letters, Vol. 119, No. 8, 082301, 23.08.2017.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Study of Jet Quenching with Z+jet Correlations in Pb-Pb and pp Collisions at s NN=5.02 TeV
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 - Chekhovsky, V.
AU - Dvornikov, O.
AU - Dydyshka, Y.
AU - Emeliantchik, I.
AU - Litomin, A.
AU - Makarenko, V.
AU - Mossolov, V.
AU - Stefanovitch, R.
AU - Suarez Gonzalez, J.
AU - Zykunov, V.
AU - Shumeiko, N.
AU - Alderweireldt, S.
AU - De Wolf, E. A.
AU - Janssen, X.
AU - Lauwers, J.
AU - Van De Klundert, M.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Skovpen, Y.
AU - Shtol, D.
N1 - Publisher Copyright: © 2017 CERN. © 2017 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
PY - 2017/8/23
Y1 - 2017/8/23
N2 - The production of jets in association with Z bosons, reconstructed via the μ+μ- and e+e- decay channels, is studied in pp and, for the first time, in Pb-Pb collisions. Both data samples were collected by the CMS experiment at the LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The Pb-Pb collisions were analyzed in the 0%-30% centrality range. The back-to-back azimuthal alignment was studied in both pp and Pb-Pb collisions for Z bosons with transverse momentum pTZ>60 GeV/c and a recoiling jet with pTjet>30 GeV/c. The pT imbalance xjZ=pTjet/pTZ, as well as the average number of jet partners per Z, RjZ, was studied in intervals of pTZ. The RjZ is found to be smaller in Pb-Pb than in pp collisions, which suggests that in Pb-Pb collisions a larger fraction of partons associated with the Z bosons fall below the 30 GeV/c pTjet threshold because they lose energy.
AB - The production of jets in association with Z bosons, reconstructed via the μ+μ- and e+e- decay channels, is studied in pp and, for the first time, in Pb-Pb collisions. Both data samples were collected by the CMS experiment at the LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The Pb-Pb collisions were analyzed in the 0%-30% centrality range. The back-to-back azimuthal alignment was studied in both pp and Pb-Pb collisions for Z bosons with transverse momentum pTZ>60 GeV/c and a recoiling jet with pTjet>30 GeV/c. The pT imbalance xjZ=pTjet/pTZ, as well as the average number of jet partners per Z, RjZ, was studied in intervals of pTZ. The RjZ is found to be smaller in Pb-Pb than in pp collisions, which suggests that in Pb-Pb collisions a larger fraction of partons associated with the Z bosons fall below the 30 GeV/c pTjet threshold because they lose energy.
KW - RADIATIVE ENERGY-LOSS
UR - http://www.scopus.com/inward/record.url?scp=85029358039&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.119.082301
DO - 10.1103/PhysRevLett.119.082301
M3 - Article
C2 - 28952777
AN - SCOPUS:85029358039
VL - 119
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 8
M1 - 082301
ER -
ID: 9911860