Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- S. Chatrchyan
- V. Khachatryan
- A. M. Sirunyan
- A. Tumasyan
- W. Adam
- E. Aguiló
- T. Bergauer
- M. Dragicevic
- J. Erö
- C. Fabjan
- M. Friedl
- R. Frühwirth
- V. M. Ghete
- J. Hammer
- M. Hoch
- N. Hörmann
- J. Hrubec
- M. Jeitler
- W. Kiesenhofer
- V. Knünz
- M. Krammer
- I. Krätschmer
- D. Liko
- W. Majerotto
- I. Mikulec
- M. Pernicka
- B. Rahbaran
- C. Rohringer
- H. Rohringer
- R. Schöfbeck
- J. Strauss
- F. Szoncsó
- A. Taurok
- W. Waltenberger
- G. Walzel
- E. Widl
- C.-E. Wulz
- V. Chekhovsky
- I. Emeliantchik
- A. Litomin
- В. Макаренко
- V. Mossolov
- N. Shumeiko
- A. Solin
- R. Stefanovitch
- J. Suarez Gonzalez
- A. Fedorov
- M. Korzhik
- O. Missevitch
- R. Zuyeuski
- M. Bansal
- S. Bansal
- W. Worby Beaumont
- T. Cornelis
- E. A. De Wolf
- Dmitry Druzhkin
- X. Janssen
- S. Luyckx
- L. Mucibello
- S. Ochesanu
- B. Roland
- R. Rougny
- M. Selvaggi
- Z. Staykova
- H. Van Haevermaet
- P. Van Mechelen
- N. Van Remortel
- A. Van Spilbeeck
- F. Blekman
- S. Blyweert
- J. D’Hondt
- O. Devroede
- R. Gonzalez Suarez
- R. Goorens
- A. Kalogeropoulos
- M. Maes
- A. Olbrechts
- S. Tavernier
- W. Van Doninck
- L. Van Lancker
- P. Van Mulders
- G. P. Van Onsem
- I. Villella
- B. Clerbaux
- G. De Lentdecker
- V. Dero
- J.‐P. Dewulf
- A. P. R. Gay
- T. Hreus
- A. Léonard
- P. Marage
- A. Mohammadi
- T. Reis
- S. Rugovac
- Laurent Thomas
- C. Vander Velde
- P. Vanlaer
- J. Wang
- J.H. Wickens
- V. Adler
- AMA. Meyer
- STS. Tosi
- GAG. A. Alves
- LML. Mundim
- AMA. Meyer
- STS. Tosi
- GAG. A. Alves
- LML. Mundim
- SNSergio Ferraz Novaes
- PMP. G. Mercadante
- JSJ. B. Singh
- SPSandra S. Padula
Physics Letters B · 2012 · Elsevier BV
6 views · 0 downloads
Abstract
Results are presented from searches for the standard model Higgs boson in proton-proton collisions at s=7 and 8 TeV in the Compact Muon Solenoid experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1 fb -1 at 7 TeV and 5.3 fb -1 at 8 TeV. The search is performed in five decay modes: γγ, ZZ, W +W -, τ +τ -, and bb-. An excess of events is observed above the expected background, with a local significance of 5.0 standard deviations, at a mass near 125 GeV, signalling the production of a new particle. The expected significance for a standard model Higgs boson of that mass is 5.8 standard deviations. The excess is most significant in the two decay modes with the best mass resolution, γγ and ZZ; a fit to these signals gives a mass of 125.3±0.4(stat.)±0.5(syst.) GeV. The decay to two photons indicates that the new particle is a boson with spin different from one. © 2012 CERN.