A search for the Standard Model Higgs boson in proton–proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb−1 collected at √s = 7 TeV in 2011 and 5.8 fb−1 at √s = 8 TeV in 2012. Individual searches in the channels H → Z Z(∗) →4, H →γγ and H →WW(∗) →eνμν in the 8 TeV data are combined with previously published results of searches for H → Z Z(∗), WW(∗), b¯b and τ+τ− in the 7 TeV data and results from improved analyses of the H → Z Z(∗) →4 and H →γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0±0.4 (stat)±0.4 (sys) GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10−9, is compatible with the production and decay of the Standard Model Higgs boson.

G. AAD, E. ABAT, B. ABBOTT, J. ABDALLAH, A.A. ABDELALIM, A. ABDESSELAM, et al. (2012). Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC. PHYSICS LETTERS. SECTION B, 716, 1-29 [10.1016/j.physletb.2012.08.020].

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

BERTIN, ANTONIO;BINDI, MARCELLO;CAFORIO, DAVIDE;DE CASTRO, STEFANO;DI SIPIO, RICCARDO;FABBRI, LAURA;FRANCHINI, MATTEO;MASSA, IGNAZIO GIACOMO;MENGARELLI, ALBERTO;MONZANI, SIMONE;PICCININI, MAURIZIO;RINALDI, LORENZO;SBARRA, CARLA;SBRIZZI, ANTONIO;SEMPRINI CESARI, NICOLA;VALENTINETTI, SARA;VILLA, MAURO;I. VIVARELLI;ZOCCOLI, ANTONIO;
2012

Abstract

A search for the Standard Model Higgs boson in proton–proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb−1 collected at √s = 7 TeV in 2011 and 5.8 fb−1 at √s = 8 TeV in 2012. Individual searches in the channels H → Z Z(∗) →4, H →γγ and H →WW(∗) →eνμν in the 8 TeV data are combined with previously published results of searches for H → Z Z(∗), WW(∗), b¯b and τ+τ− in the 7 TeV data and results from improved analyses of the H → Z Z(∗) →4 and H →γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0±0.4 (stat)±0.4 (sys) GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10−9, is compatible with the production and decay of the Standard Model Higgs boson.
2012
G. AAD, E. ABAT, B. ABBOTT, J. ABDALLAH, A.A. ABDELALIM, A. ABDESSELAM, et al. (2012). Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC. PHYSICS LETTERS. SECTION B, 716, 1-29 [10.1016/j.physletb.2012.08.020].
G. AAD; E. ABAT; B. ABBOTT; J. ABDALLAH; A.A. ABDELALIM; A. ABDESSELAM; O. ABDINOV; B. ABI; M. ABOLINS; H. ABRAMOWICZ; H. ABREU; E. ACERBI; B.S. ACHAR...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/128519
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