caa a22 4500 528782606 20190713030948.0 cr unu---uuuuu 180924e201602 xx s 000 0 eng 10.3929/ethz-b-000114173 doi 10.1007/JHEP02(2016)156 doi (ETHRESEARCH)oai:www.research-collection.ethz.ch:20.500.11850/114173 Correlations between jets and charged particles in PbPb and pp collisions at √sNN [Elektronische Daten] 2.76 TeV [CMS Collaboration, Vardan Khachatryan, Felix Bachmair, Lukas Bäni, Lorenzo Bianchini, Bruno Casal, Günther Dissertori, Michael Dittmar, Mauro Donegà, Philipp Eller, Christophorus; id_orcid 0000-0002-6182-3380 Grab, Constantin Heidegger, Dmitry Hits, Jan Hoss, Gregor Kasieczka, Pierre Lecomte, Werner Lustermann, Boris Mangano, Matthieu Marionneau, Pablo Martinez Ruiz del Arbol, Mario Masciovecchio, Daniel Meister, Francesco Micheli, Pasquale Musella, Francesca Nessi-Tedaldi, Francesco Pandolfi, Joosep Pata, Felicitas Pauss, Milena Quittnat, Marco Rossini, Myriam Schönenberger, Andrey Starodumov, Maiko Takahashi, Vittorio R. Tavolaro, Konstantinos Theofilatos, Rainer; id_orcid 0000-0001-8038-1613 Wallny, et al.] J. high energy phys. Open access ethresearch 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 sNN−−−√=2.76 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 (p T) above 120 GeV, and with the leading and subleading jets (the highest and second-highest in p T, 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 p T. A centrality-dependent excess of low-p T particles is present for all jets studied, and is most pronounced in the most central events. This excess of low-p T particles follows a Gaussian-like distribution around the jet axis, and extends to large relative angles of Δη ≈ 1 and Δϕ ≈ 1. Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 ethresearch Jets ethresearch Heavy-ion collision ethresearch Heavy Ion Experiments ethresearch Particle correlations and fluctuations ethresearch CMS Collaboration joint author Khachatryan Vardan joint author Bachmair Felix joint author Bäni Lukas joint author Bianchini Lorenzo joint author Casal Bruno joint author Dissertori Günther joint author Dittmar Michael joint author Donegà Mauro joint author Eller Philipp joint author Grab Christophorus; id_orcid 0000-0002-6182-3380 joint author Heidegger Constantin joint author Hits Dmitry joint author Hoss Jan joint author Kasieczka Gregor joint author Lecomte Pierre joint author Lustermann Werner joint author Mangano Boris joint author Marionneau Matthieu joint author Martinez Ruiz del Arbol Pablo joint author Masciovecchio Mario joint author Meister Daniel joint author Micheli Francesco joint author Musella Pasquale joint author Nessi-Tedaldi Francesca joint author Pandolfi Francesco joint author Pata Joosep joint author Pauss Felicitas joint author Quittnat Milena joint author Rossini Marco joint author Schönenberger Myriam joint author Starodumov Andrey joint author Takahashi Maiko joint author Tavolaro Vittorio R. joint author Theofilatos Konstantinos joint author Wallny Rainer; id_orcid 0000-0001-8038-1613 joint author et al. joint author Journal of High Energy Physics Berlin : Springer 2016, p. 156 1126-6708 http://hdl.handle.net/20.500.11850/114173 text/html WWW-Backlink auf das Repository (Open access) 1 Journal Article ethresearch ETHRESEARCH 856 40 http://hdl.handle.net/20.500.11850/114173 text/html WWW-Backlink auf das Repository (Open access) ETHRESEARCH 700 -- CMS Collaboration joint author ETHRESEARCH 700 1- Khachatryan Vardan joint author ETHRESEARCH 700 1- Bachmair Felix joint author ETHRESEARCH 700 1- Bäni Lukas joint author ETHRESEARCH 700 1- Bianchini Lorenzo joint author ETHRESEARCH 700 1- Casal Bruno joint author ETHRESEARCH 700 1- Dissertori Günther joint author ETHRESEARCH 700 1- Dittmar Michael joint author ETHRESEARCH 700 1- Donegà Mauro joint author ETHRESEARCH 700 1- Eller Philipp joint author ETHRESEARCH 700 1- Grab Christophorus; id_orcid 0000-0002-6182-3380 joint author ETHRESEARCH 700 1- Heidegger Constantin joint author ETHRESEARCH 700 1- Hits Dmitry joint author ETHRESEARCH 700 1- Hoss Jan joint author ETHRESEARCH 700 1- Kasieczka Gregor joint author ETHRESEARCH 700 1- Lecomte Pierre joint author ETHRESEARCH 700 1- Lustermann Werner joint author ETHRESEARCH 700 1- Mangano Boris joint author ETHRESEARCH 700 1- Marionneau Matthieu joint author ETHRESEARCH 700 1- Martinez Ruiz del Arbol Pablo joint author ETHRESEARCH 700 1- Masciovecchio Mario joint author ETHRESEARCH 700 1- Meister Daniel joint author ETHRESEARCH 700 1- Micheli Francesco joint author ETHRESEARCH 700 1- Musella Pasquale joint author ETHRESEARCH 700 1- Nessi-Tedaldi Francesca joint author ETHRESEARCH 700 1- Pandolfi Francesco joint author ETHRESEARCH 700 1- Pata Joosep joint author ETHRESEARCH 700 1- Pauss Felicitas joint author ETHRESEARCH 700 1- Quittnat Milena joint author ETHRESEARCH 700 1- Rossini Marco joint author ETHRESEARCH 700 1- Schönenberger Myriam joint author ETHRESEARCH 700 1- Starodumov Andrey joint author ETHRESEARCH 700 1- Takahashi Maiko joint author ETHRESEARCH 700 1- Tavolaro Vittorio R. joint author ETHRESEARCH 700 1- Theofilatos Konstantinos joint author ETHRESEARCH 700 1- Wallny Rainer; id_orcid 0000-0001-8038-1613 joint author ETHRESEARCH 700 -- et al joint author ETHRESEARCH 773 0- Journal of High Energy Physics Berlin : Springer 2016, p. 156 1126-6708 BK010053 XK010053 XK010000 ETHRESEARCH ETHRESEARCH ETHRESEARCH Journal Article Open access