Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV

S. Chatrchyan, V. Khachatryan,A. M. Sirunyan, A. Tumasyan,W. Adam,T. Bergauer, M. Dragicevic, J. Erö, C. Fabjan, M. Friedl,R. Frühwirth, V. M. Ghete,J. Hammer,N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer,V. Knünz,M. Krammer, D. Liko, I. Mikulec,M. Pernicka,B. Rahbaran, C. Rohringer, H. Rohringer, R. Schöfbeck,J. Strauss, A. Taurok,P. Wagner,W. Waltenberger, G. Walzel,E. Widl,C. E. Wulz,V. Mossolov, N. Shumeiko,J. Suarez Gonzalez,S. Bansal,T. Cornelis,E. A. De Wolf, X. Janssen,S. Luyckx, T. Maes,L. Mucibello,S. Ochesanu,B. Roland,R. Rougny, M. Selvaggi,H. Van Haevermaet,P. Van Mechelen,N. Van Remortel,A. Van Spilbeeck, F. Blekman, S. Blyweert, J. D'Hondt,R. Gonzalez Suarez, A. Kalogeropoulos,M. Maes, A. Olbrechts,W. Van Doninck,P. Van Mulders,G. P. Van Onsem, I. Villella, O. Charaf,B. Clerbaux,G. De Lentdecker,V. Dero,T. Hreus, A. Léonard, P. E. Marage, T. Reis, L. Thomas,C. Vander Velde, P. Vanlaer, J. Wang,V. Adler, K. Beernaert,A. Cimmino,S. Costantini,G. Garcia, M. Grunewald,B. Klein,J. Lellouch, A. Marinov, J. Mccartin,A. A. Ocampo Rios,D. Ryckbosch, N. Strobbe, F. Thyssen, M. Tytgat, L. Vanelderen,P. Verwilligen,S. Walsh,E. Yazgan, N. Zaganidis,S. Basegmez,G. Bruno,R. Castello,L. Ceard,C. Delaere,T. du Pree,D. Favart,L. Forthomme,A. Giammanco, J. Hollar,V. Lemaitre,J. Liao, O. Militaru,C. Nuttens, D. Pagano,A. Pin,K. Piotrzkowski, N. Schul,J. M. Vizan Garcia,N. Beliy,T. Caebergs,E. Daubie,G. H. Hammad,G. A. Alves,M. Correa Martins Junior,D. De Jesus Damiao,T. Martins,M. E. Pol, M. H.G. Souza,W. L. Aldá Júnior,W. Carvalho, A. Custódio,E. M. Da Costa,C. De Oliveira Martins,S. Fonseca De Souza,D. Matos Figueiredo, L. Mundim, H. Nogima, V. Oguri,W. L. Prado Da Silva, A. Santoro,S. M. Silva Do Amaral,L. Soares Jorge,A. Sznajder,C. A. Bernardes, F. A. Dias,T. R. Fernandez Perez Tomei,E. M. Gregores,C. Lagana,F. Marinho,P. G. Mercadante,S. F. Novaes,Sandra S. Padula,V. Genchev, P. Iaydjiev,S. Piperov, M. Rodozov,S. Stoykova, G. Sultanov,V. Tcholakov,R. Trayanov,M. Vutova,A. Dimitrov, R. Hadjiiska,V. Kozhuharov,L. Litov,B. Pavlov,P. Petkov, J. G. Bian,G. M. Chen, H. S. Chen, C. H. Jiang,D. Liang,S. Liang,X. Meng,J. Tao,X. Wang,Z. Wang, H. Xiao,M. Xu,J. Zang,Z. Zhang,C. Asawatangtrakuldee,Y. Ban,S. Guo, Y. Guo,W. Li,S. Liu,Y. Mao, S. J. Qian,H. Teng,S. Wang,B. Zhu,W. Zou, C. Avila,B. Gomez Moreno,A. F. Osorio Oliveros,J. C. Sanabria,N. Godinovic, D. Lelas,R. Plestina, D. Polic,I. Puljak,Z. Antunovic,M. Kovac,V. Brigljevic,S. Duric, K. Kadija, J. Luetic,S. Morovic,A. Attikis, M. Galanti, G. Mavromanolakis,J. Mousa,C. Nicolaou, F. Ptochos,P. A. Razis, M. Finger, Y. Assran,S. Elgammal,A. Ellithi Kamel,S. Khalil, M. A. Mahmoud,A. Radi,M. Kadastik, M. Müntel,M. Raidal, L. Rebane, A. Tiko,V. Azzolini,P. Eerola,G. Fedi, M. Voutilainen, J. Härkönen,A. Heikkinen, V. Karimäki, R. Kinnunen, M. J. Kortelainen, T. Lampén, K. Lassila-Perini, S. Lehti,T. Lindén,P. Luukka, T. Mäenpää, T. Peltola,E. Tuominen, J. Tuominiemi,E. Tuovinen, D. Ungaro, L. Wendland, K. Banzuzi,A. Korpela,T. Tuuva, M. Besancon,S. Choudhury,M. Dejardin,D. Denegri, B. Fabbro, J. L. Faure,F. Ferri, S. Ganjour, A. Givernaud, P. Gras,G. Hamel de Monchenault, P. Jarry,E. Locci, J. Malcles,L. Millischer,A. Nayak, J. Rander,A. Rosowsky, I. Shreyber,M. Titov,S. Baffioni, F. Beaudette, L. Benhabib,L. Bianchini, M. Bluj,C. Broutin,P. Busson, C. Charlot, N. Daci, T. Dahms,L. Dobrzynski,R. Granier de Cassagnac, M. Haguenauer,P. Miné, C. Mironov, C. Ochando, P. Paganini,D. Sabes, R. Salerno, Y. Sirois, C. Veelken, A. Zabi,J. L. Agram,J. Andrea,D. Bloch,D. Bodin,J. M. Brom,M. Cardaci, E. C. Chabert, C. Collard,E. Conte,F. Drouhin,C. Ferro, J. C. Fontaine, D. Gelé, U. Goerlach, P. Juillot,M. Karim,A. C. Le Bihan,P. Van Hove, F. Fassi, D. Mercier,S. Beauceron, N. Beaupere, O. Bondu, G. Boudoul, H. Brun,J. Chasserat,R. Chierici,D. Contardo, P. Depasse,H. El Mamouni,J. Fay,S. Gascon, M. Gouzevitch,B. Ille, T. Kurca, M. Lethuillier, L. Mirabito,S. Perries,V. Sordini, S. Tosi, Y. Tschudi,P. Verdier,S. Viret,Z. Tsamalaidze,G. Anagnostou,S. Beranek, M. Edelhoff, L. Feld,N. Heracleous, O. Hindrichs,R. Jussen,K. Klein, J. Merz,A. Ostapchuk, A. Perieanu, F. Raupach,J. Sammet,S. Schael,D. Sprenger,H. Weber, B. Wittmer,V. Zhukov,M. Ata, J. Caudron,E. Dietz-Laursonn,M. Erdmann,A. Güth, T. Hebbeker, C. Heidemann, K. Hoepfner,D. Klingebiel,P. Kreuzer, J. Lingemann, C. Magass, M. Merschmeyer,A. Meyer, M. Olschewski,P. Papacz,H. Pieta, H. Reithler,S. A. Schmitz,L. Sonnenschein,J. Steggemann, D. Teyssier,M. Weber, M. Bontenackels, V. Cherepanov,M. Davids, G. Flügge, H. Geenen,M. Geisler,W. Haj Ahmad, F. Hoehle, B. Kargoll, T. Kress,Y. Kuessel, A. Linn,A. Nowack, L. Perchalla, O. Pooth,J. Rennefeld,P. Sauerland,A. Stahl,M. Aldaya Martin,J. Behr,W. Behrenhoff,U. Behrens,M. Bergholz, A. Bethani, K. Borras, A. Burgmeier,A. Cakir,L. Calligaris,A. Campbell,E. Castro, F. Costanza,D. Dammann, G. Eckerlin,D. Eckstein,D. Fischer, G. Flucke, A. Geiser, I. Glushkov,S. Habib, J. Hauk,H. Jung, M. Kasemann, P. Katsas, C. Kleinwort, H. Kluge,A. Knutsson,M. Krämer, D. Krücker,E. Kuznetsova,W. Lange, W. Lohmann,B. Lutz, R. Mankel,I. Marfin,M. Marienfeld,I. A. Melzer-Pellmann,A. B. Meyer, J. Mnich,A. Mussgiller,S. Naumann-Emme,J. Olzem,H. Perrey, A. Petrukhin, D. Pitzl, A. Raspereza,P. M. Ribeiro Cipriano,C. Riedl,M. Rosin,J. Salfeld-Nebgen,R. Schmidt,T. Schoerner-Sadenius,N. Sen,A. Spiridonov, M. Stein,R. Walsh, C. Wissing, C. Autermann,V. Blobel,S. Bobrovskyi, J. Draeger, H. Enderle,J. Erfle,U. Gebbert, M. Görner,T. Hermanns, R. S. Höing,K. Kaschube,G. Kaussen,H. Kirschenmann, R. Klanner,J. Lange,B. Mura,F. Nowak,N. Pietsch, C. Sander,H. Schettler, P. Schleper,E. Schlieckau,A. Schmidt,M. Schröder, T. Schum, H. Stadie, G. Steinbrück, J. Thomsen, C. Barth,J. Berger,T. Chwalek,W. De Boer, A. Dierlamm, M. Feindt, M. Guthoff,C. Hackstein,F. Hartmann,M. Heinrich, H. Held, K. H. Hoffmann,S. Honc, I. Katkov,J. R. Komaragiri,D. Martschei,S. Mueller,Th Müller,M. Niegel, A. Nürnberg, O. Oberst,A. Oehler

user-5ed732bc4c775e09d87b4c18（2018）

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摘要

Results from the first study of isolated-photon + jet correlations in relativistic heavy ion collisions are reported. The analysis uses data from PbPb collisions at a centre-of-mass energy of 2.76 TeV2.76 TeV per nucleon pair corresponding to an integrated luminosity of 150 μb−1150 μb−1 recorded by the CMS experiment at the LHC. For events containing an isolated photon with transverse momentum View the MathML sourcepTγ>60 GeV/c and an associated jet with View the MathML sourcepTJet>30 GeV/c, the photon + jet pTpT imbalance is studied as a function of collision centrality and compared to pp data and pythia calculations at the same collision energy. Using the View the MathML sourcepTγ of the isolated photon as an estimate of the momentum of the associated parton at production, this measurement allows an unbiased characterisation of the in-medium parton energy loss. For more central PbPb collisions, a significant decrease in the ratio View the MathML sourcepTJet/pTγ relative to that in the pythia reference is observed. Furthermore, significantly more View the MathML sourcepTγ>60 GeV/c photons in PbPb are observed not to have an associated View the MathML sourcepTJet>30 GeV/c jet, compared to the reference. However, no significant broadening of the photon + jet azimuthal correlation is observed.

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关键词

Jet quenching,Jet (fluid),Parton,Photon,Quark–gluon plasma,Nucleon,Large Hadron Collider,Momentum,Nuclear physics,Particle physics,Physics

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