Search for the standard model Higgs boson decaying into two photons in pp collisions at √s=7TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/107336

Title:	Search for the standard model Higgs boson decaying into two photons in pp collisions at √s=7TeV
Authors:	張元翰;Chatrchyan, S.;Cornelis, T.;Lellouch, J.;Walsh, S.;Giammanco, A.;Mundim, L.;Mercadante, P.G.;Litov, L.;Polic, D.;Müntel, M.;Sillou, D.;Faure, J.L.;Givernaud, A.;Bianchini, L.;Brom, J.-M.;Collard, C.;Drouhin, F.;Sordini, V.;Zhukov, V.;Erdmann, M.;Reithler, H.;Geenen, H.;Behrenhoff, W.;Knutsson, A.;Schmidt, R.;Blobel, V.;Hermanns, T.;Troendle, D.;Loukas, D.;Singh, J.;Choudhury, R.K.;Pant, L.M.;Frosali, S.;Colafranceschi, S.;Fabbricatore, P.;Lista, L.;Dosselli, U.;Tosi, M.;Romeo, F.;Santocchia, A.;Castaldi, R.;DʼAgnolo, R.T.;Giassi, A.;Potenza, A.;Kong, D.J.;Moon, D.H.;Sim, K.S.;Lee, J.;Konoplyanikov, V.;Uvarov, L.;Golubev, N.;Boos, E.;Sobol, A.;Delgado Peris, A.;Romero, L.;Jorda, C.;Abbaneo, D.;Gomez-Reino Garrido, R.;Lecoq, P.;Petrilli, A.;Segoni, I.;Stoye, M.;Martinez Ruiz del Arbol, P.;Nägeli, C.;Peruzzi, M.;Bakirci, M.N.;Sogut, K.;Frazier, R.;Brew, C.;Nash, J.;Virdee, T.;Bose, T.;Everaerts, P.;Tucker, J.;Yoo, J.;Vaughan, J.;Winstrom, L.;Albrow, M.;Apollinari, G.;Atac, M.;Bakken, J.A.;Drozdetskiy, A.;Mitselmakher, G.;Snowball, M.;OʼBrien, C.;Zhukova, V.;Goncharov, M.;Brinkerhoff, A.;Kolb, J.;Luo, W.;Hunt, A.;Zuranski, A.;Mendez, H.;Laasanen, A.T.;Zablocki, J.;Chung, Y.S.;Garcia-Bellido, A.;Patel, R.;Francis, B.;Anderson, M.
Contributors:	理學院物理學系
Keywords:	CMS;Exact sciences and technology;Higgs;Nuclear physics;Physics;The physics of elementary particles and fields
Date:	2012-04-12
Issue Date:	2026-04-23 14:08:19 (UTC+8)
Publisher:	Kidlington: Elsevier B.V
Abstract:	摘要： A search for a Higgs boson decaying into two photons is described. The analysis is performed using a dataset recorded by the CMS experiment at the LHC from pp collisions at a center-of-mass energy of 7 TeV, which corresponds to an integrated luminosity of 4.8 fb−1. Limits are set on the cross section of the standard model Higgs boson decaying to two photons. The expected exclusion limit at 95% confidence level is between 1.4 and 2.4 times the standard model cross section in the mass range between 110 and 150 GeV. The analysis of the data excludes, at 95% confidence level, the standard model Higgs boson decaying into two photons in the mass range 128 to 132 GeV. The largest excess of events above the expected standard model background is observed for a Higgs boson mass hypothesis of 124 GeV with a local significance of 3.1σ. The global significance of observing an excess with a local significance ⩾3.1σ anywhere in the search range 110–150 GeV is estimated to be 1.8σ. More data are required to ascertain the origin of this excess. 出版者： Kidlington: Elsevier B.V 出版日期： 2012-04-12 出處： Physics letters. B, 2012-04, Vol.710 (3), p.403-425 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2012 CERN 版權： 2015 INIST-CNRS 識別號： ISSN: 0370-2693 識別號： EISSN: 1873-2445 識別號： DOI: 10.1016/j.physletb.2012.03.003 識別號： CODEN: PYLBAJ
Appears in Collections:	[Department of Physics] journal & Dissertation

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