A combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC is presented. The data sets used correspond to integrated luminosities from 4.6 fb(-1) to 4.9 fb(-1) of proton-proton collisions collected at root s = 7 TeV in 2011. The Higgs boson mass ranges of 111.4 GeV to 116.6 GeV, 119.4 GeV to 122.1 GeV, and 129.2 GeV to 541 GeV are excluded at the 95% confidence level, while the range 120 GeV to 560 GeV is expected to be excluded in the absence of a signal. An excess of events is observed at Higgs boson mass hypotheses around 126 GeV with a local significance of 2.9 standard deviations (sigma). The global probability for the background to produce an excess at least as significant anywhere in the entire explored Higgs boson mass range of 110-600 GeV is estimated to be similar to 15%, corresponding to a significance of approximately 1 sigma.

Combined search for the Standard Model Higgs boson in pp collisions at root s=7 TeV with the ATLAS detector / Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdelalim, A., Abdinov, O., Aben, R., Abi, B., Abolins, M., Abouzeid, O., Abramowicz, H., Abreu, H., Acerbi, E., Acharya, B., Adamczyk, L., Adams, D., Addy, T., Adelman, J., Adomeit, S., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 86:3(2012), p. 032003. [10.1103/physrevd.86.032003]

Combined search for the Standard Model Higgs boson in pp collisions at root s=7 TeV with the ATLAS detector

G. Artoni;BAGNAIA, Paolo;BINI, Cesare;DE CECCO, Sandro;DIONISI, Carlo;GAUZZI, Paolo;GENTILE, Simonetta;GIAGU, Stefano;KADO, MARUMI;LACAVA, Francesco;LUCI, Claudio;MESSINA, Andrea;MONZANI, SIMONE;A. Policicchio;SOLFAROLI CAMILLOCCI, ELENA;VANADIA, MARCO;VERDUCCI, MONICA;
2012

Abstract

A combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC is presented. The data sets used correspond to integrated luminosities from 4.6 fb(-1) to 4.9 fb(-1) of proton-proton collisions collected at root s = 7 TeV in 2011. The Higgs boson mass ranges of 111.4 GeV to 116.6 GeV, 119.4 GeV to 122.1 GeV, and 129.2 GeV to 541 GeV are excluded at the 95% confidence level, while the range 120 GeV to 560 GeV is expected to be excluded in the absence of a signal. An excess of events is observed at Higgs boson mass hypotheses around 126 GeV with a local significance of 2.9 standard deviations (sigma). The global probability for the background to produce an excess at least as significant anywhere in the entire explored Higgs boson mass range of 110-600 GeV is estimated to be similar to 15%, corresponding to a significance of approximately 1 sigma.
2012
01 Pubblicazione su rivista::01a Articolo in rivista
Combined search for the Standard Model Higgs boson in pp collisions at root s=7 TeV with the ATLAS detector / Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdelalim, A., Abdinov, O., Aben, R., Abi, B., Abolins, M., Abouzeid, O., Abramowicz, H., Abreu, H., Acerbi, E., Acharya, B., Adamczyk, L., Adams, D., Addy, T., Adelman, J., Adomeit, S., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 86:3(2012), p. 032003. [10.1103/physrevd.86.032003]
File allegati a 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/11573/492766
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 140
  • ???jsp.display-item.citation.isi??? 134
social impact