A search for the Higgs boson produced in association with a W or Z boson in proton-proton collisions at a center-of-mass energy of 7 TeV is performed with the CMS detector at the LHC using the full 2011 data sample, from an integrated luminosity of 5 fb(-1). Higgs boson decay modes to tau tau and WW are explored by selecting events with three or four leptons in the final state. No excess above background expectations is observed, resulting in exclusion limits on the product of Higgs associated production cross section and decay branching fraction for Higgs boson masses between 110 and 200 GeV in these channels. Combining these results with other CMS associated production searches using the same dataset in the H -> gamma gamma and H -> b (b) over bar decay modes, the cross section for associated Higgs boson production 3.3 times the standard model expectation or larger is ruled out at the 95% confidence level for a Higgs boson mass of 125 GeV. RI tosi, mia/J-5777-2012; Lokhtin, Igor/D-7004-2012; Della Ricca, Giuseppe/B-6826-2013; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; De La Cruz Burelo, Eduard/B-9802-2013; Petrushanko, Sergey/D-6880-2012; Santaolalla, Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Azzi, Patrizia/H-5404-2012; Tinoco Mendes, Andre David/D-4314-2011; Raidal, Martti/F-4436-2012; Novaes, Sergio/D-3532-2012; Wulz, Claudia-Elisabeth/H-5657-2011; Fruhwirth, Rudolf/H-2529-2012; Rolandi, Luigi (Gigi)/E-8563-2013; Flix, Josep/G-5414-2012; Montanari, Alessandro/J-2420-2012 OI Della Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805; De La Cruz Burelo, Eduard/0000-0002-7469-6974; Tinoco Mendes, Andre David/0000-0001-5854-7699; Novaes, Sergio/0000-0003-0471-8549; Rolandi, Luigi (Gigi)/0000-0002-0635-274X;

Search for the standard model Higgs boson produced in association with W and Z bosons in pp collisions at root s=7 TeV

ABBRESCIA, Marcello;BARBONE, LUCIA;CALABRIA, CESARE;CHHIBRA, SIMRANJIT SINGH;DE PALMA, Mauro;LUSITO, LETIZIA;MARANGELLI, Bartolomeo;MY, Salvatore;NUZZO, Salvatore Vitale;PACIFICO, NICOLA;POMPILI, ALEXIS;VENDITTI, ROSAMARIA;
2012-01-01

Abstract

A search for the Higgs boson produced in association with a W or Z boson in proton-proton collisions at a center-of-mass energy of 7 TeV is performed with the CMS detector at the LHC using the full 2011 data sample, from an integrated luminosity of 5 fb(-1). Higgs boson decay modes to tau tau and WW are explored by selecting events with three or four leptons in the final state. No excess above background expectations is observed, resulting in exclusion limits on the product of Higgs associated production cross section and decay branching fraction for Higgs boson masses between 110 and 200 GeV in these channels. Combining these results with other CMS associated production searches using the same dataset in the H -> gamma gamma and H -> b (b) over bar decay modes, the cross section for associated Higgs boson production 3.3 times the standard model expectation or larger is ruled out at the 95% confidence level for a Higgs boson mass of 125 GeV. RI tosi, mia/J-5777-2012; Lokhtin, Igor/D-7004-2012; Della Ricca, Giuseppe/B-6826-2013; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; De La Cruz Burelo, Eduard/B-9802-2013; Petrushanko, Sergey/D-6880-2012; Santaolalla, Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Azzi, Patrizia/H-5404-2012; Tinoco Mendes, Andre David/D-4314-2011; Raidal, Martti/F-4436-2012; Novaes, Sergio/D-3532-2012; Wulz, Claudia-Elisabeth/H-5657-2011; Fruhwirth, Rudolf/H-2529-2012; Rolandi, Luigi (Gigi)/E-8563-2013; Flix, Josep/G-5414-2012; Montanari, Alessandro/J-2420-2012 OI Della Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805; De La Cruz Burelo, Eduard/0000-0002-7469-6974; Tinoco Mendes, Andre David/0000-0001-5854-7699; Novaes, Sergio/0000-0003-0471-8549; Rolandi, Luigi (Gigi)/0000-0002-0635-274X;
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/67539
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 1
social impact