Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6183
Title: Correlations between jets and charged particles in PbPb and pp collisions at sNN=2.76 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Heavy ion experiments
Compact Muon Solenoid
Large Hadron Collider (LHC)
Particle correlations and fluctuations
Publisher: Springer Verlag
Source: Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T.,...CMS Collaboration (2016). Correlations between jets and charged particles in PbPb and pp collisions at sNN=2.76 TeV. Journal of High Energy Physics, 2016(2), 1-39. doi:10.1007/JHEP02(2016)156
Abstract: The quark-gluon plasma is studied via medium-induced changes to correlations between jets and charged particles in PbPb collisions compared to pp reference data. This analysis uses data sets from PbPb and pp collisions with integrated luminosities of 166 μb−1 and 5.3 pb−1, respectively, collected at (Formula presented.) TeV. The angular distributions of charged particles are studied as a function of relative pseudorapidity (Δη) and relative azimuthal angle (Δϕ) with respect to reconstructed jet directions. Charged particles are correlated with all jets with transverse momentum (pT) above 120 GeV, and with the leading and subleading jets (the highest and second-highest in pT, respectively) in a selection of back-to-back dijet events. Modifications in PbPb data relative to pp reference data are characterized as a function of PbPb collision centrality and charged particle pT. A centrality-dependent excess of low-pT particles is present for all jets studied, and is most pronounced in the most central events. This excess of low-pT particles follows a Gaussian-like distribution around the jet axis, and extends to large relative angles of Δη ≈ 1 and Δϕ ≈ 1.[Figure not available: see fulltext.]
URI: http://doi.org/10.1007/JHEP02(2016)156
http://hdl.handle.net/11147/6183
ISSN: 1029-8479
Appears in Collections:Mathematics / Matematik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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