Jet momentum dependence of jet quenching in PbPb collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msqrt><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>2.76</mml:mn><mml:mtext> TeV</mml:mtext></mml:math>
S. ChatrchyanYerevan Physics Institute, Yerevan, ArmeniaV. KhachatryanYerevan Physics Institute, Yerevan, ArmeniaA. M. SirunyanYerevan Physics Institute, Yerevan, ArmeniaA. TumasyanYerevan Physics Institute, Yerevan, ArmeniaW. AdamInstitut für Hochenergiephysik der OeAW, Wien, AustriaT. BergauerInstitut für Hochenergiephysik der OeAW, Wien, AustriaM. DragicevicInstitut für Hochenergiephysik der OeAW, Wien, AustriaJ. EröInstitut für Hochenergiephysik der OeAW, Wien, AustriaC. FabjanInstitut für Hochenergiephysik der OeAW, Wien, AustriaM. FriedlInstitut für Hochenergiephysik der OeAW, Wien, AustriaR. FrühwirthInstitut für Hochenergiephysik der OeAW, Wien, AustriaV. M. GheteInstitut für Hochenergiephysik der OeAW, Wien, AustriaJ. HammerInstitut für Hochenergiephysik der OeAW, Wien, AustriaN. HörmannInstitut für Hochenergiephysik der OeAW, Wien, AustriaJ. HrubecInstitut für Hochenergiephysik der OeAW, Wien, AustriaM. JeitlerInstitut für Hochenergiephysik der OeAW, Wien, AustriaW. KiesenhoferInstitut für Hochenergiephysik der OeAW, Wien, AustriaM. KrammerInstitut für Hochenergiephysik der OeAW, Wien, AustriaD. LikoInstitut für Hochenergiephysik der OeAW, Wien, AustriaI. MikulecInstitut für Hochenergiephysik der OeAW, Wien, AustriaM. PernickaAustrian Academy of Sciences, Vienna, AustriaB. RahbaranAustrian Academy of Sciences, Vienna, AustriaC. RohringerAustrian Academy of Sciences, Vienna, AustriaH. RohringerAustrian Academy of Sciences, Vienna, AustriaR. SchöfbeckAustrian Academy of Sciences, Vienna, AustriaJ. StraussAustrian Academy of Sciences, Vienna, AustriaA. TaurokAustrian Academy of Sciences, Vienna, AustriaF. A. TeischingerAustrian Academy of Sciences, Vienna, AustriaP. WagnerAustrian Academy of Sciences, Vienna, AustriaW. WaltenbergerAustrian Academy of Sciences, Vienna, AustriaG. WalzelAustrian Academy of Sciences, Vienna, AustriaE. WidlAustrian Academy of Sciences, Vienna, AustriaC.-E. WulzAustrian Academy of Sciences, Vienna, AustriaV. MossolovInstitut für Hochenergiephysik der OeAW, Wien, AustriaN. ShumeikoInstitut für Hochenergiephysik der OeAW, Wien, AustriaJ. Suarez GonzalezInstitut für Hochenergiephysik der OeAW, Wien, AustriaS. B. BeriUniversity of Antwerp, Antwerp, BelgiumT. CornelisUniversity of Antwerp, Antwerp, BelgiumE. A. De WolfUniversity of Antwerp, Antwerp, BelgiumX. JanssenUniversity of Antwerp, Antwerp, BelgiumS. LuyckxUniversity of Antwerp, Antwerp, BelgiumT. MaesUniversity of Antwerp, Antwerp, BelgiumL. MucibelloUniversity of Antwerp, Antwerp, BelgiumS. OchesanuUniversity of Antwerp, Antwerp, BelgiumB. RolandUniversity of Antwerp, Antwerp, BelgiumR. RougnyUniversity of Antwerp, Antwerp, BelgiumM. SelvaggiUniversity of Antwerp, Antwerp, BelgiumH. Van HaevermaetUniversity of Antwerp, Antwerp, BelgiumP. Van MechelenUniversity of Antwerp, Antwerp, BelgiumN. Van RemortelUniversity of Antwerp, Antwerp, BelgiumA. Van SpilbeeckUniversity of Antwerp, Antwerp, BelgiumF. BlekmanVrije Universiteit Brussel, Brussels, BelgiumS. BlyweertVrije Universiteit Brussel, Brussels, BelgiumJ. D’HondtVrije Universiteit Brussel, Brussels, BelgiumR. Gonzalez SuarezVrije Universiteit Brussel, Brussels, BelgiumA. KalogeropoulosVrije Universiteit Brussel, Brussels, BelgiumM. MaesVrije Universiteit Brussel, Brussels, BelgiumA. OlbrechtsVrije Universiteit Brussel, Brussels, BelgiumW. Van DoninckVrije Universiteit Brussel, Brussels, BelgiumP. Van MuldersVrije Universiteit Brussel, Brussels, BelgiumG. P. Van OnsemVrije Universiteit Brussel, Brussels, BelgiumI. VillellaVrije Universiteit Brussel, Brussels, BelgiumO. CharafUniversité Libre de Bruxelles, Brussels, BelgiumB. ClerbauxUniversité Libre de Bruxelles, Brussels, BelgiumG. De LentdeckerUniversité Libre de Bruxelles, Brussels, BelgiumV. DeroUniversité Libre de Bruxelles, Brussels, BelgiumA. P. R. GayT. HreusUniversité Libre de Bruxelles, Brussels, BelgiumA. LéonardUniversité Libre de Bruxelles, Brussels, BelgiumP. E. MarageUniversité Libre de Bruxelles, Brussels, BelgiumLaurent ThomasUniversité Libre de Bruxelles, Brussels, BelgiumC. Vander VeldeUniversité Libre de Bruxelles, Brussels, BelgiumP. VanlaerUniversité Libre de Bruxelles, Brussels, BelgiumV. AdlerGhent University, Ghent, BelgiumK. BeernaertGhent University, Ghent, BelgiumA. CimminoGhent University, Ghent, BelgiumS. CostantiniGhent University, Ghent, BelgiumG. GarciaGhent University, Ghent, BelgiumM. GrünewaldGhent University, Ghent, BelgiumB. KleinGhent University, Ghent, BelgiumJ. LellouchGhent University, Ghent, BelgiumA. MarinovGhent University, Ghent, BelgiumJ. MccartinGhent University, Ghent, BelgiumA.A. Ocampo RiosGhent University, Ghent, BelgiumD. RyckboschGhent University, Ghent, BelgiumN. StrobbeGhent University, Ghent, BelgiumF. ThyssenGhent University, Ghent, BelgiumM. TytgatGhent University, Ghent, BelgiumL. VanelderenGhent University, Ghent, BelgiumP. VerwilligenGhent University, Ghent, BelgiumS. WalshGhent University, Ghent, BelgiumE. YazganGhent University, Ghent, BelgiumN. ZaganidisGhent University, Ghent, BelgiumS. BasegmezUCLouvain, Louvain-la-Neuve, BelgiumG. BrunoUCLouvain, Louvain-la-Neuve, BelgiumL. CeardUCLouvain, Louvain-la-Neuve, BelgiumC. DelaereUCLouvain, Louvain-la-Neuve, BelgiumT. du PreeUCLouvain, Louvain-la-Neuve, BelgiumD. FavartUCLouvain, Louvain-la-Neuve, BelgiumL. ForthommeUCLouvain, Louvain-la-Neuve, Belgium
2012lv
ABI
Annotatsiya
Dijet production in PbPb collisions at a nucleon–nucleon center-of-mass energy of 2.76 TeV is studied with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 150 μb−1 is analyzed. Jets are reconstructed using combined information from tracking and calorimetry, using the anti-kT algorithm with R=0.3. The dijet momentum balance and angular correlations are studied as a function of collision centrality and leading jet transverse momentum. For the most peripheral PbPb collisions, good agreement of the dijet momentum balance distributions with pp data and reference calculations at the same collision energy is found, while more central collisions show a strong imbalance of leading and subleading jet transverse momenta attributed to the jet-quenching effect. The dijets in central collisions are found to be more unbalanced than the reference, for leading jet transverse momenta up to the highest values studied.
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