Search for the Standard Model Higgs Boson in the Decay Channel H -> ZZ -> 4l in pp Collisions at root s=7 TeV

Torna indietro

Abstract

A search for a Higgs boson in the four-lepton decay channel H -> ZZ, with each Z boson decaying to an electron or muon pair, is reported. The search covers Higgs boson mass hypotheses in the range of 110 < m(H) < 600 GeV. The analysis uses data corresponding to an integrated luminosity of 4.7 fb(-1) recorded by the CMS detector in pp collisions at root s = 7 TeV from the LHC. Seventy-two events are observed with four-lepton invariant mass m(4l) > 100 GeV (with 13 below 160 GeV), while 67.1 +/- 6.0 (9.5 +/- 1.3) events are expected from background. The four-lepton mass distribution is consistent with the expectation of standard model background production of ZZ pairs. Upper limits at 95% confidence level exclude the standard model Higgs boson in the ranges of 134-158 GeV, 180-305 GeV, and 340-465 GeV. Small excesses of events are observed around masses of 119, 126, and 320 GeV, making the observed limits weaker than expected in the absence of a signal.

Autore Pugliese

Tutti gli autori

  • Chatrchyan S , Khachatryan V , Sirunyan AM , Tumasyan A , Adam W , Bergauer T , Dragicevic M , Ero J , Fabjan C , Friedl M , Fruhwirth R , Ghete VM , Hammer J , Hoch M , Hormann N , Hrubec J , Jeitler M , Kiesenhofer W , Krammer M , Liko D , Mikulec I , Pernicka M , Rahbaran B , Rohringer C , Rohringer H , Schofbeck R , Strauss J , Taurok A , Teischinger F , Wagner P , Waltenberger W , Walzel G , Widl E , Wulz CE , Mossolov V , Shumeiko N , Gonzalez JS , Bansal S , Benucci L , Cornelis T , De Wolf EA , Janssen X , Luyckx S , Maes T , Mucibello L , Ochesanu S , Roland B , Rougny R , Selvaggi M , Van Haevermaet H , Van Mechelen P , Van Remortel N , Van Spilbeeck A , Blekman F , Blyweert S , D'Hondt J , Suarez RG , Kalogeropoulos A , Maes M , Olbrechts A , Van Doninck W , Van Mulders P , Van Onsem GP , Villella I , Charaf O , Clerbaux B , De Lentdecker G , Dero V , Gay APR , Hammad GH , Hreus T , Leonard A , Marage PE , Thomas L , Vander Velde C , Vanlaer P , Wickens J , Adler V , Beernaert K , Cimmino A , Costantini S , Garcia G , Grunewald M , Klein B , Lellouch J , Marinov A , Mccartin J , Rios AAO , Ryckbosch D , Strobbe N , Thyssen F , Tytgat M , Vanelderen L , Verwilligen P , Walsh S , Yazgan E , Zaganidis N , Basegmez S , Bruno G , Ceard L , De Jeneret JD , Delaere C , du Pree T , Favart D , Forthomme L , Giammanco A , Gregoire G , Hollar J , Lemaitre V , Liao J , Militaru O , Nuttens C , Pagano D , Pin A , Piotrzkowski K , Schul N , Beliy N , Caebergs T , Daubie E , Alves GA , Martins MC , Damiao DD , Martins T , Pol ME , Souza MHG , Alda WL , Carvalho W , Custodio A , Da Costa EM , Martins CD , De Souza SF , Figueiredo DM , Mundim L , Nogima H , Oguri V , Da Silva WLP , Santoro A , Do Amaral SMS , Jorge LS , Sznajder A , Anjos TS , Bernardes CA , Dias FA , Tomei TRFP , Gregores EM , Lagana C , Marinho F , Mercadante PG , Novaes SF , Padula SS , Genchev V , Iaydjiev P , Piperov S , Rodozov M , Stoykova S , Sultanov G , Tcholakov V , Trayanov R , Vutova M , Dimitrov A , Hadjiiska R , Karadzhinova A , Kozhuharov V , Litov L , Pavlov B , Petkov P , Bian JG , Chen GM , Chen HS , Jiang CH , Liang D , Liang S , Meng X , Tao J , Wang J , Wang J , Wang X , Wang Z , Xiao H , Xu M , Zang J , Zhang Z , Asawatangtrakuldee C , Ban Y , Guo S , Guo Y , Li W , Liu S , Mao Y , Qian SJ , Teng H , Wang S , Zhu B , Zou W , Cabrera A , Moreno BG , Oliveros AFO , Sanabria JC , Godinovic N , Lelas D , Plestina R , Polic D , Puljak I , Antunovic Z , Dzelalija M , Kovac M , Brigljevic V , Duric S , Kadija K , Luetic J , Morovic S , Attikis A , Galanti M , Mousa J , Nicolaou C , Ptochos F , Razis PA , Finger M , Finger M , Assran Y , Kamel AE , Khalil S , Mahmoud MA , Radi A , Hektor A , Kadastik M , Muntel M , Raidal M , Rebane L , Tiko A , Azzolini V , Eerola P , Fedi G , Voutilainen M , Czellar S , Harkonen J , Heikkinen A , 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 , Ungaro D , Wendland L , Banzuzi K , Korpela A , Tuuva T , Sillou D , Besancon M , Choudhury S , Dejardin M , Denegri D , Fabbro B , Faure JL , Ferri F , Ganjour S , Givernaud A , Gras P , De Monchenault GH , Jarry P , Locci E , Malcles J , Millischer L , Rander J , Rosowsky A , Shreyber I , Titov M , Baffioni S , Beaudette F , Benhabib L , Bianchini L , Bluj M , Broutin C , Busson P , Charlot C , Daci N , Dahms T , Dobrzynski L , Elgammal S , de Cassagnac RG , Haguenauer M , Mine P , Mironov C , Ochando C , Paganini P , Sabes D , Salerno R , Sirois Y , Thiebaux C , Veelken C , Zabi A , Agram JL , Andrea J , Bloch D , Bodin D , Brom JM , Cardaci M , Chabert EC , Collard C , Conte E , Drouhin F , Ferro C , Fontaine JC , Gele D , Goerlach U , Juillot P , Karim M , Le Bihan AC , Van Hove P , Fassi F , Mercier D , Baty C , Beauceron S , Beaupere N , Bedjidian M , Bondu O , Boudoul G , Boumediene D , Brun H , Chasserat J , Chierici R , Contardo D , Depasse P , El Mamouni H , Falkiewicz A , Fay J , Gascon S , Gouzevitch M , Ille B , Kurca T , Le Grand T , Lethuillier M , Mirabito L , Perries S , Sordini V , Tosi S , Tschudi Y , Verdier P , Viret S , Lomidze D , Anagnostou G , Beranek S , Edelhoff M , Feld L , Heracleous N , Hindrichs O , Jussen R , Klein K , Merz J , Ostapchuk A , Perieanu A , Raupach F , Sammet J , S

Titolo volume/Rivista

PHYSICAL REVIEW LETTERS

Anno di pubblicazione

2012

ISSN

0031-9007

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

57

Ultimo Aggiornamento Citazioni

2017-04-23 03:20:56

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile