期刊
PHYSICS LETTERS B
卷 736, 期 -, 页码 64-85出版社
ELSEVIER
DOI: 10.1016/j.physletb.2014.06.077
关键词
CMS; Physics; Higgs; Diboson; Properties
资金
- BMWF (Austria)
- FWF (Austria)
- FNRS (Belgium)
- FWO (Belgium)
- CNPq (Brazil)
- CAPES (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- MES (Bulgaria)
- CERN
- CAS (China)
- MoST (China)
- NSFC (China)
- COLCIENCIAS (Colombia)
- MSES (Croatia)
- CSF (Croatia)
- RPF (Cyprus)
- MoER (Estonia) [SF0690030s09]
- ERDF (Estonia)
- Academy of Finland (Finland)
- MEC (Finland)
- HIP (Finland)
- CEA (France)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- GSRT (Greece)
- OTKA (Hungary)
- NIH (Hungary)
- DAE (India)
- DST (India)
- IPM (Iran)
- SFI (Ireland)
- INFN (Italy)
- NRF (Republic of Korea)
- WCU (Republic of Korea)
- LAS (Lithuania)
- MOE (Malaysia)
- UM (Malaysia)
- CINVESTAV (Mexico)
- CONACYT (Mexico)
- SEP (Mexico)
- UASLP-FAI (Mexico)
- MBIE (New Zealand)
- PAEC (Pakistan)
- MSHE (Poland)
- NSC (Poland)
- FCT (Portugal)
- JINR (Dubna)
- MON (Russia)
- RosAtom (Russia)
- RAS (Russia)
- RFBR (Russia)
- MESTD (Serbia)
- SEIDI (Spain)
- CPAN (Spain)
- Swiss Funding Agencies (Switzerland)
- NSC (Taipei)
- ThEPCenter (Thailand)
- IPST (Thailand)
- STAR (Thailand)
- NSTDA (Thailand)
- TUBITAK (Turkey)
- TAEK (Turkey)
- NASU (Ukraine)
- SFFR (Ukraine)
- STFC (United Kingdom)
- DOE (USA)
- NSF (USA)
- STFC [ST/G502347/1, ST/L00609X/1, ST/K001639/1, ST/F006748/1, ST/L005603/1, ST/I000410/1, ST/I005912/1, ST/I505580/1, ST/J005665/1, ST/F007094/1, ST/J004901/1, ST/K003542/1, ST/L006340/1, ST/I002200/1, ST/I505572/1, ST/K003844/1, ST/K001604/1, ST/H00081X/2] Funding Source: UKRI
- Science and Technology Facilities Council [ST/I000410/1, ST/I505572/1, ST/J004901/1, ST/L005603/1, ST/K003542/1, ST/K003844/1, ST/L006340/1, ST/K001604/1 T2K, ST/K001604/1, ST/F007094/1, ST/I005912/1, GRIDPP, ST/K003844/1 GRIDPP, ST/K001604/1 MICE/UKNF, ST/K001604/1 GRIDPP, ST/K001604/1 LHCb Upgrades, ST/K001604/1 DMUK, ST/G502347/1, CMS, ST/F006748/1, ST/K001639/1, ST/I002200/1, ST/I505580/1, ST/I005912/1 GRIDPP, ST/L00609X/1, ST/K001604/1 LHCb, ST/J005665/1, ST/K001604/1 SuperNEMO, ST/K001256/1, ST/K001604/1 CMS Upgrade, ST/L00609X/1 GRIDPP] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [1120138, 1306951, 1205960, 1100862, 1151640] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [0906479, 1314131] Funding Source: National Science Foundation
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. (C) 2014 The Authors. Published by Elsevier B.V.
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