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  1. Pubblicazioni

Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs

Articolo
Data di Pubblicazione:
2014
Abstract:
Constraints are presented on the total width of the recently discovered Higgs boson, Gamma(H), using its relative on-shell and off-shell production and decay rates to a pair of Z bosons, where one Z boson decays to an electron or muon pair, and the other to an electron, muon, or neutrino pair. The analysis is based on the data collected by the CMS experiment at the LHC in 2011 and 2012, corresponding to integrated luminosities of 5.1 fb(-1) at a center-of-mass energy root s = 7 TeV and 19.7 fb(-1) at root s = 8 TeV. A simultaneous maximum likelihood fit to the measured kinematic distributions near the resonance peak and above the Z-boson pair production threshold leads to an upper limit on the Higgs boson width of Gamma(H) < 22 MeV at a 95% confidence level, which is 5.4 times the expected value in the standard model at the measured mass of m(H) = 125.6 GeV.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
Khachatryan, V; Sirunyan, AM; Tumasyan, A; Adam, W; Bergauer, T; Dragicevic, M; Eroe, J; Fabjan, C; Friedl, M; Fruhwirth, R; Ghete, VM; Hartl, C; Hormann, N; Hrubec, J; Jeitler, M; Kiesenhofer, W; Knunz, V; Krammer, M; Kratschmer, I; Liko, D; Mikulec, I; Rabady, D; Rahbaran, B; Rohringer, H; Schofbeck, R; Strauss, J; Taurok, A; Treberer-Treberspurg, W; Waltenberger, W; Wulz, CE; Mossolov, V; Shumeiko, N; Gonzalez, JS; Alderweireldt, S; Bansal, M; Bansal, S; Cornelis, T; De Wolf, EA; Janssen, X; Knutsson, A; Blekman, F; Ochesanu, S; Roland, B; Rougny, R; Van de Klundert, M; Van Haevermaet, H; Van Mechelen, P; Van Remortel, N; Van Spilbeeck, A; Blekman, F; Blyweert, S; D'Hondt, J; Daci, N; Heracleous, N; Keaveney, J; Lowette, S; Maes, M; Olbrechts, A; Python, Q; Strom, D; Tavernier, S; Van Doninck, W; Van Mulders, P; Van Onsem, GP; Villella, I; Caillol, C; Clerbaux, B; De Lentdecker, G; Dobur, D; Favart, L; Gay, APR; Grebenyuk, A; Leonard, A; Mohammadi, A; Perniee, L; Reis, T; Seva, T; Thomas, L; Vander Velde, C; Vanlaer, P; Wang, J; Adler, V; Beernaert, K; Benucci, L; Cimmino, A; Costantini, S; Crucy, S; Dildick, S; Fagot, A; Garcia, G; Mccartin, J; Rios, AAO; Ryckbosch, D; Diblen, SS; Sigamani, M; Strobbe, N; Thyssen, F; Tytgat, M; Yazgan, E; Zaganidis, N; Basegmez, S; Beluffi, C; Bruno, G; Castello, R; Caudron, A; Ceard, L; Da Silveira, GG; Delaere, C; du Pree, T; Favart, D; Forthomme, L; Giammanco, A; Hollar, J; Jez, P; Komm, M; Lemaitre, V; Nuttens, C; Pagano, D; Perrini, L; Pin, A; Piotrzkowski, K; Popov, A; Quertenmont, L; Selvaggi, M; Marono, MV; Garcia, JMV; Beliy, N; Caebergs, T; Daubie, E; Hammad, GH; Alda, WL; Alves, GA; Brito, L; Martins, M; Martins, TD; Pol, ME; Carvalho, W; Chinellato, J; Custodio, A; Da Costa, EM; Damiao, DD; Martins, CD; De Souza, SF; Malbouisson, H; Figueiredo, DM; Mundim, L; Nogima, H; Da Silva, WLP; Santaolalla, J; Santoro, A; Sznajder, A; Manganote, EJT; Pereira, AV; Bernardes, CA; Tomei, TRFP; Gregores, EM; Mercadante, PG; Novaes, SF; Padula, SS; Aleksandrov, A; Genchev, V; Iaydjiev, P; Marinov, A; Piperov, S; Rodozov, M; Sultanov, G; Vutova, M; Dimitrov, A; Glushkov, I; Hadjiiska, R; Kozhuharov, V; Litov, L; Pavlov, B; Petkov, P; Bian, JG; Chen, GM; Chen, HS; Chen, M; Du, R; Jiang, CH; Liang, D; Liang, S; Plestina, R; Tao, J; Wang, X; Wang, Z; Asawatangtrakuldee, C; Ban, Y; Guo, Y; Li, Q; Li, W; Liu, S; Mao, Y; Qian, SJ; Wang, D; Zhang, L; Zou, W; Avila, C; Sierra, LFC; Florez, C; Gomez, JP; Moreno, BG; Sanabria, JC; Godinovic, N; Lelas, D; Polic, D; Puljak, I; Antunovic, Z; Kovac, M; Brigljevic, V; Kadija, K; Luetic, J; Mekterovic, D; Sudic, L; Attikis, A; Mavromanolakis, G; Mousa, J; Nicolaou, C; Ptochos, F; Razis, PA; Bodlak, M; Finger, M; Finger, M; Assran, Y; Kamel, AE; Mahmoud, MA; Radi, A; Kadastik, M; Murumaa, M; Raidal, M; Tiko, A; Eerola, P; Fedi, G; Voutilainen, M; Harkonen, J; Karimaki, V; Kinnunen, R; Kortelainen, MJ; Lampen, T; Lassila-Perini, K; Lehti, S; Linden, T; Luukka, P; Maenpaa, T; Peltola, T; Tuominen, E; Tuominiemi, J; Tuovinen, E; Wendland, L; Tuuva, T; Besancon, M; Couderc, F; Dejardin, M; Denegri, D; Fabbro, B; Faure, JL; Favaro, C; Ferri, F; Ganjour, S; Givernaud, A; Gras, P; de Monchenault, GH; Jarry, P; Locci, E; Malcles, J; Rander, J; Rosowsky, A; Titov, M; Baffioni, S; Beaudette, F; Busson, P; Charlot, C; Dahms, T; Dalchenko, M; Dobrzynski, L; Filipovic, N; Florent, A; de Cassagnac, RG; Machet, M; Mastrolorenzo, L; Mine, P; Mironov, C; Naranjo, IN; Nguyen, M; Ochando, C; Paganini, P; Salerno, R; Sauvan, JB; Sirois, Y; Veelken, C; Yilmaz, Y; Zabi, A; Agram, JL; Andrea, J; Aubin, A; Bloch, D; Brom, JM; Chabert, EC; Collard, C; Conte, E; Fontaine, JC; Gele, D; Goerlach, U; Goetzmann, C; Le Bihan, AC; Van Hove, P; Gadrat, S; Beauceron, S; Beaupere, N; Boudoul, G; Bouvier, E; Brochet, S; Montoya, CAC; Chasserat, J; Chierici, R; Contardo, D; Depasse, P; El Mamouni, H; Fan, J; Fay, J; Gascon, S; Gouzevitch, M; Ille, B; Kurca, T; Lethuillier, M; Mirabito, L; Perries
Autori di Ateneo:
AMAPANE Nicola Carlo
ARGIRO' Stefano
BELLAN Riccardo
COSTA Marco
COVARELLI Roberto
MIGLIORE Ernesto
MONACO Vincenzo
OBERTINO Maria Margherita
PACHER Luca
SACCHI Roberto
SOLA Valentina
SOLANO Ada Maria
Link alla scheda completa:
https://iris.unito.it/handle/2318/157977
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/157977/27954/PLB_736_64.pdf
Pubblicato in:
PHYSICS LETTERS. SECTION B
Journal
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