E-viri
PDF
Recenzirano
Odprti dostop
-
Madlener, T.; Rad, N.; Schieck, J.; Di Croce, D.; Rejeb Sfar, H.; Van Mulders, P.; Delcourt, M.; Jiang, C.H.; Avila, C.; Mejia Guisao, J.; Puljak, I.; Jarry, P.; Leloup, C.; Sahin, M.Ö.; Mocellin, G.; Grados Luyando, J.M.; Jomhari, N.Z.; Pérez Adán, D.; Major, P.; Ujvari, B.; Dhingra, N.; Virdi, A.K.; Nandan, S.; Saha, G.; Rastogi, A.; De Filippis, N.; Nuzzo, S.; Abbiendi, G.; Lo Meo, S.; Potenza, R.; Bianco, S.; Bozzo, M.; Tosi, S.; Tosi, M.; Giassi, A.; Rizzi, A.; Tenchini, R.; Meridiani, P.; Quaranta, C.; Cappati, A.; Mariotti, C.; Candelise, V.; Vazzoler, F.; Moon, D.H.; Jeon, D.; Choi, Y.; Faccioli, P.; Gavrilenko, M.; Vorobyev, A.; Colino, N.; Hernandez, J.M.; Moran, D.; Sánchez Navas, S.; Auzinger, G.; Moortgat, F.; Petrilli, A.; Grab, C.; Celik, A.; Onengut, G.; Tok, U.G.; Zorbilmez, C.; Levchuk, L.; Cockerill, D.J.A.; GurpreetSingh, C.H.A.H.A.L.; Di Maria, R.; Laner, C.; Zenz, S.C.; Teodorescu, L.; Hatakeyama, K.; Tos, K.; Bravo, C.; Ignatenko, M.; Stone, B.; Gary, J.W.; Masciovecchio, M.; Würthwein, F.; Gray, L.; Lincoln, D.; Ristori, L.; Smith, N.; Soha, A.; Taylor, L.; Vaandering, E.W.; Hofman, D.J.; Onel, Y.; Feng, L.; Krintiras, G.; Minafra, N.; Brandt, S.; Roland, C.; Rappoccio, S.; Smith, G.; Hill, C.; Salfeld-Nebgen, J.; Damgov, J.; Gurrola, A.; Janjam, R.; Harr, R.; Carlsmith, D.; De Bruyn, I.
Physics letters. B, 05/2020, Letnik: 804Journal Article
A study of the production of prompt J/ψ mesons contained in jets in proton-proton collisions at s=8TeV is presented. The analysis is based on data corresponding to an integrated luminosity of 19.1 fb−1 collected with the CMS detector at the LHC. For events with at least one observed jet, the angular separation between the J/ψ meson and the jet is used to test whether the J/ψ meson is part of the jet. The analysis shows that most prompt J/ψ mesons having energy above 15 GeV and rapidity |y|<1 are contained in jets with pseudorapidity |ηjet|<1. The differential distributions of the probability to have a J/ψ meson contained in a jet as a function of jet energy for a fixed J/ψ energy fraction are compared to a theoretical model using the fragmenting jet function approach. The data agree best with fragmenting jet function calculations that use a long-distance matrix element parameter set in which prompt J/ψ mesons are predicted to be unpolarized. This technique demonstrates a new way to test predictions for prompt J/ψ production using nonrelativistic quantum chromodynamics.
