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Girth and groomed radius of jets recoiling against isolated photons in lead-lead and proton-proton collisions at sNN=5.02 TeVopen accessGirth and groomed radius of jets recoiling against isolated photons in lead-lead and proton-proton collisions at √sNN=5.02 TeV

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Girth and groomed radius of jets recoiling against isolated photons in lead-lead and proton-proton collisions at √sNN=5.02 TeV
Authors
Hayrapetyan, A.Tumasyan, A.Adam, W.Andrejkovic, J.W.Bergauer, T.Chatterjee, S.Asilar, E.Kim, D.Kim, T.J.Merlin, J.A.Damanakis, K.Dragicevic, M.Hussain, P.S.Jeitler, M.Krammer, N.Li, A.Liko, D.Mikulec, I.Schieck, J.Schöfbeck, R.Schwarz, D.Sonawane, M.Templ, S.Waltenberger, W.Wulz, C.-E.Darwish, M.R.Janssen, T.Van Mechelen, P.Bols, E.S.D'Hondt, J.Dansana, S.De Moor, A.Delcourt, M.Lowette, S.Makarenko, I.Müller, D.Tavernier, S.Tytgat, M.Van Onsem, G.P.Van Putte, S.Vannerom, D.Clerbaux, B.Das, A.K.De Lentdecker, G.Evard, H.Favart, L.Gianneios, P.Hohov, D.Jaramillo, J.Khalilzadeh, A.Khan, F.A.Lee, K.Mahdavikhorrami, M.Malara, A.Paredes, S.Thomas, L.Vanden Bemden, M.Vander Velde, C.Vanlaer, P.De Coen, M.Dobur, D.Hong, Y.Knolle, J.Lambrecht, L.Mestdach, G.Mota Amarilo, K.Rendón, C.Samalan, A.Skovpen, K.Van Den Bossche, N.van der Linden, J.Wezenbeek, L.Benecke, A.Bethani, A.Bruno, G.Caputo, C.Delaere, C.Donertas, I.S.Giammanco, A.Jain, Sa.Lemaitre, V.Lidrych, J.Mastrapasqua, P.Tran, T.T.Wertz, S.Alves, G.A.Coelho, E.Hensel, C.Menezes De Oliveira, T.Moraes, A.Rebello Teles, P.Soeiro, M.Aldá Júnior, W.L.Alves Gallo Pereira, M.Barroso Ferreira Filho, M.Brandao Malbouisson, H.Carvalho, W.Chinellato, J.Da Costa, E.M.Da Silveira, G.G.De Jesus Damiao, D.Fonseca De Souza, S.Gomes De Souza, R.Martins, J.Mora Herrera, C.Mundim, L.Nogima, H.Pinheiro, J.P.Santoro, A.Sznajder, A.Thiel, M.Vilela Pereira, A.Bernardes, C.A.Calligaris, L.Fernandez Perez Tomei, T.R.Gregores, E.M.Mercadante, P.G.Novaes, S.F.Orzari, B.Padula, Sandra S.Aleksandrov, A.Antchev, G.Hadjiiska, R.Iaydjiev, P.Misheva, M.Shopova, M.Sultanov, G.Dimitrov, A.Litov, L.Pavlov, B.Petkov, P.Petrov, A.Shumka, E.Keshri, S.Thakur, S.Cheng, T.Javaid, T.Yuan, L.Hu, Z.Liu, J.Yi, K.Chen, G.M.Chen, H.S.Chen, M.Iemmi, F.Jiang, C.H.Kapoor, A.Liao, H.Liu, Z.-A.Sharma, R.Song, J.N.Tao, J.Wang, C.Wang, J.Wang, Z.Zhang, H.Agapitos, A.Ban, Y.Levin, A.Li, C.Li, Q.Mao, Y.Qian, S.J.Sun, X.Wang, D.Yang, H.Zhang, L.Zhou, C.You, Z.Jaffel, K.Lu, N.Bauer, G.Gao, X.Lin, Z.Lu, C.Xiao, M.Avila, C.Barbosa Trujillo, D.A.Cabrera, A.Florez, C.Fraga, J.Reyes Vega, J.A.Mejia Guisao, J.Ramirez, F.Rodriguez, M.Ruiz Alvarez, J.D.Giljanovic, D.Godinovic, N.Lelas, D.Sculac, A.Kovac, M.Sculac, T.Bargassa, P.Brigljevic, V.Chitroda, B.K.Ferencek, D.Jakovcic, K.Mishra, S.Starodumov, A.Susa, T.Attikis, A.Christoforou, K.Hadjiagapiou, A.Konstantinou, S.Mousa, J.Nicolaou, C.Ptochos, F.Razis, P.A.Rykaczewski, H.Saka, H.Stepennov, A.Finger, M.Finger, M.Kveton, A.Ayala, E.Carrera Jarrin, E.Abdelalim, A.A.Elgammal, S.Lotfy, A.Mohammed, Y.Ehataht, K.Kadastik, M.Lange, T.Nandan, S.Nielsen, C.Pata, J.Raidal, M.Tani, L.Veelken, C.Kirschenmann, H.Osterberg, K.Voutilainen, M.Bharthuar, S.Brücken, E.Garcia, F.Kallonen, K.T.S.Kinnunen, R.Lampén, T.Lassila-Perini, K.Lehti, S.Lindén, T.Martikainen, L.Myllymäki, M.Rantanen, M.M.Siikonen, H.Tuominen, E.Tuominiemi, J.Luukka, P.Petrow, H.Besancon, M.Couderc, F.Dejardin, M.Denegri, D.Faure, J.L.Ferri, F.Ganjour, 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M.Meuser, D.Pauls, A.Röwert, N.Teroerde, M.Diekmann, S.Dodonova, A.Eich, N.Eliseev, D.Engelke, F.Erdmann, J.Erdmann, M.Fackeldey, P.Fischer, B.Hebbeker, T.Hoepfner, K.Ivone, F.Jung, A.Lee, M.Y.Mausolf, F.Merschmeyer, M.Meyer, A.Mukherjee, S.Noll, D.Nowotny, F.Pozdnyakov, A.Rath, Y.Redjeb, W.Rehm, F.Reithler, H.Sarkar, U.Sarkisovi, V.Schmidt, A.Sharma, A.Spah, J.L.Stein, A.Torres Da Silva De Araujo, F.Wiedenbeck, S.Zaleski, S.Dziwok, C.Flügge, G.Haj Ahmad, W.Kress, T.Nowack, A.Pooth, O.Stahl, A.Ziemons, T.Zotz, A.Aarup Petersen, H.Aldaya Martin, M.Alimena, J.Amoroso, S.An, Y.Baxter, S.Bayatmakou, M.Becerril Gonzalez, H.Behnke, O.Belvedere, A.Bhattacharya, S.Blekman, F.Borras, K.Campbell, A.Cardini, A.Cheng, C.Colombina, F.Consuegra Rodríguez, S.Correia Silva, G.De Silva, M.Eckerlin, G.Eckstein, D.Estevez Banos, L.I.Filatov, O.Gallo, E.Geiser, A.Giraldi, A.Guglielmi, V.Guthoff, M.Hinzmann, A.Jafari, A.Jeppe, L.Jomhari, N.Z.Kaech, B.Kasemann, M.Kleinwort, C.Kogler, R.Komm, M.Krücker, 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Issue Date
Feb-2025
Publisher
Elsevier BV
Keywords
CMS; Gluons; Jet substructure; Jets; Lead-lead; Photon; Proton-proton
Citation
Physics Letters B, v.861, pp 1 - 30
Pages
30
Indexed
SCIE
SCOPUS
Journal Title
Physics Letters B
Volume
861
Start Page
1
End Page
30
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/212367
DOI
10.1016/j.physletb.2024.139088
ISSN
0370-2693
1873-2445
Abstract
This Letter presents the first measurements of the groomed jet radius R-g and the jet girth g in events with an isolated photon recoiling against a jet in lead-lead (PbPb) and proton-proton (pp) collisions at the LHC at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The observables R-g and g provide a quantitative measure of how narrow or broad a jet is. The analysis uses PbPb and pp data samples with integrated luminosities of 1.7 nb(-1) and 301 pb(-1), respectively, collected with the CMS experiment in 2018 and 2017. Events are required to have a photon with transverse momentum p(T)(gamma) > 100 GeV and at least one jet back-to-back in azimuth with respect to the photon and with transverse momentum p(T)(jet) such that p(T)(jet)/p(T)(gamma) > 0.4. The measured R-g and g distributions are unfolded to the particle level, which facilitates the comparison between the PbPb and pp results and with theoretical predictions. It is found that jets with p(T)(jet)/p(T)(gamma) > 0.8, i.e., those that closely balance the photon p(T)(gamma), are narrower in PbPb than in pp collisions. Relaxing the selection to include jets with p(T)(jet)/p(T)(gamma) > 0.4 reduces the narrowing of the angular structure of jets in PbPb relative to the pp reference. This shows that selection bias effects associated with jet energy loss play an important role in the interpretation of jet substructure measurements.
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서울 자연과학대학 > 서울 물리학과 > 1. Journal Articles

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Kim, Tae Jeong
COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)
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