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  1. Pubblicazioni

Hard color-singlet exchange in dijet events in proton-proton collisions at √s=13  TeV

Articolo
Data di Pubblicazione:
2021
Citazione:
(2021). Hard color-singlet exchange in dijet events in proton-proton collisions at √s=13  TeV [journal article - articolo]. In PHYSICAL REVIEW D. Retrieved from http://hdl.handle.net/10446/190360
Abstract:
Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at √s=13  TeV. The signature is expected from hard color-singlet exchange. Each of the highest transverse momentum (pT) jets must have pjetT>40  GeV and pseudorapidity 1.4<|ηjet|<4.7, with ηjet1ηjet2<0, where jet1 and jet2 are the leading and subleading jets in pT, respectively. The analysis is based on data collected by the CMS and TOTEM experiments during a low luminosity, high-β∗ run at the CERN LHC in 2015, with an integrated luminosity of 0.66  pb−1. Events with a low number of charged particles with pT>0.2  GeV in the interval |η|<1 between the jets are observed in excess of calculations that assume only color-exchange. The fraction of events produced via color-singlet exchange, fCSE, is measured as a function of pjet2T, the pseudorapidity difference between the two leading jets, and the azimuthal angular separation between the two leading jets. The fraction fCSE has values of 0.4–1.0%. The results are compared with previous measurements and with predictions from perturbative quantum chromodynamics. In addition, the first study of jet-gap-jet events detected in association with an intact proton using a subsample of events with an integrated luminosity of 0.40  pb−1 is presented. The intact protons are detected with the Roman pot detectors of the TOTEM experiment. The fCSE in this sample is 2.91±0.70(stat)+1.08−1.01(syst) times larger than that for inclusive dijet production in dijets with similar kinematics.
Tipologia CRIS:
1.1.01 Articoli/Saggi in rivista - Journal Articles/Essays
Elenco autori:
Sirunyan, A.  M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.; Krammer, N.; Lechner, L.; Liko, D.; Madlener, T.; Mikulec, I.; Pitters, F.  M.; Rad, N.; Schieck, J.; Schöfbeck, R.; Spanring, M.; Templ, S.; Waltenberger, W.; Wulz, C. -E.; Zarucki, M.; Chekhovsky, V.; Litomin, A.; Makarenko, V.; Suarez Gonzalez, J.; Darwish, M.  R.; De Wolf, E.  A.; Di Croce, D.; Janssen, X.; Kello, T.; Lelek, A.; Pieters, M.; Rejeb Sfar, H.; Van Haevermaet, H.; Van Mechelen, P.; Van Putte, S.; Van Remortel, N.; Blekman, F.; Bols, E.  S.; Chhibra, S.  S.; D’Hondt, J.; De Clercq, J.; Lontkovskyi, D.; Lowette, S.; Marchesini, I.; Moortgat, S.; Morton, A.; Python, Q.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Beghin, D.; Bilin, B.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Dorney, B.; Favart, L.; Grebenyuk, A.; Kalsi, A.  K.; Makarenko, I.; Moureaux, L.; Pétré, L.; Popov, A.; Postiau, N.; Starling, E.; Thomas, L.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Wezenbeek, L.; Cornelis, T.; Dobur, D.; Gruchala, M.; Khvastunov, I.; Niedziela, M.; Roskas, C.; Skovpen, K.; Tytgat, M.; Verbeke, W.; Vermassen, B.; Vit, M.; Bruno, G.; Bury, F.; Caputo, C.; David, P.; Delaere, C.; Delcourt, M.; Donertas, I.  S.; Giammanco, A.; Lemaitre, V.; Mondal, K.; Prisciandaro, J.; Taliercio, A.; Teklishyn, M.; Vischia, P.; Wuyckens, S.; Zobec, J.; Alves, G.  A.; Correia Silva, G.; Hensel, C.; Moraes, A.; Aldá Júnior, W.  L.; Belchior Batista Das Chagas, E.; Brandao Malbouisson, H.; Carvalho, W.; Chinellato, J.; Coelho, E.; Da Costa, E.  M.; Da Silveira, G.  G.; De Jesus Damiao, D.; Fonseca De Souza, S.; Martins, J.; Matos Figueiredo, D.; Medina Jaime, M.; Melo De Almeida, M.; Mora Herrera, C.; Mundim, L.; Nogima, H.; Rebello Teles, P.; Sanchez Rosas, L.  J.; Santoro, A.; Silva Do Amaral, S.  M.; Sznajder, A.; Thiel, M.; Tonelli Manganote, E.  J.; Torres Da Silva De Araujo, F.; Vilela Pereira, A.; Bernardes, C.  A.; Calligaris, L.; Tomei, T. R. Fernandez Perez; Gregores, E.  M.; Lemos, D.  S.; Mercadante, P.  G.; Novaes, S.  F.; Padula, Sandra S.; Aleksandrov, A.; Hadjiiska, R.; Iaydjiev, P.; Misheva, M.; Rodozov, M.; Shopova, M.; Sultanov, G.; Bonchev, M.; Dimitrov, A.; Ivanov, T.; Litov, L.; Pavlov, B.; Petkov, P.; Petrov, A.; Fang, W.; Guo, Q.; Wang, H.; Yuan, L.; Ahmad, M.; Hu, Z.; Wang, Y.; Chapon, E.; Chen, G.  M.; Chen, H.  S.; Chen, M.; Leggat, D.; Liao, H.; Liu, Z.; Sharma, R.; Spiezia, A.; Tao, J.; Thomas-wilsker, J.; Wang, J.; Zhang, H.; Zhang, S.; Zhao, J.; Agapitos, A.; Ban, Y.; Chen, C.; Levin, A.; Li, J.; Li, Q.; Lu, M.; Lyu, X.; Mao, Y.; Qian, S.  J.; Wang, D.; Wang, Q.; Xiao, J.; You, Z.; Gao, X.; Xiao, M.; Avila, C.; Cabrera, A.; Florez, C.; Fraga, J.; Sarkar, A.; Segura Delgado, M.  A.; Jaramillo, J.; Mejia Guisao, J.; Ramirez, F.; Ruiz Alvarez, J.  D.; Salazar González, C.  A.; Vanegas Arbelaez, N.; Giljanovic, D.; Godinovic, N.; Lelas, D.; Puljak, I.; Sculac, T.; Antunovic, Z.; Kovac, M.; Brigljevic, V.; Ferencek, D.; Majumder, D.; Mesic, B.; Roguljic, M.; Starodumov, A.; Susa, T.; Ather, M.  W.; Attikis, A.; Erodotou, E.; Ioannou, A.; Kole, G.; Kolosova, M.; Konstantinou, S.; Mavromanolakis, G.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P.  A.; Rykaczewski, H.; Saka, H.; Tsiakkouri, D.; Finger, M.; Finger, M.; Kveton, A.; Tomsa, J.; Ayala, E.; Carrera Jarrin, E.; Abdelalim, A.  A.; Abu Zeid, S.; Khalil, S.; Mahmoud, M.  A.; Mohammed, Y.; Bhowmik, S.; Carvalho Antunes De Oliveira, A.; Dewanjee, R.  K.; Ehataht, K.; Kadastik, M.; Raidal, M.; Veelken, C.; Eerola, P.; Kirschenmann, H.; Voutilainen, M.; Brücken, E.; Havukainen, J.; Karimäki, V.; Kim, M.  S.; Kinnunen, R.; Lampén, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Lindén, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Luukka, P.; Tuuva, T.; Besancon, M.; Couderc, F.; Dejardin, M.; Denegri, D.; Fa
Autori di Ateneo:
RE Valerio
Link alla scheda completa:
https://aisberg.unibg.it/handle/10446/190360
Link al Full Text:
https://aisberg.unibg.it/retrieve/handle/10446/190360/439568/PhysRevD.104.032009.pdf
Pubblicato in:
PHYSICAL REVIEW D
Journal
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Settore FIS/01 - Fisica Sperimentale
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