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http://bura.brunel.ac.uk/handle/2438/13159
Title: | Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks |
Authors: | Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Asilar, E Bergauer, T Brandstetter, J Brondolin, E Dragicevic, M Erö, J Flechl, M Friedl, M Frühwirth, R Ghete, VM Hartl, C Hörmann, N Hrubec, J Jeitler, M König, A Krammer, M Krätschmer, I Liko, D Matsushita, T Mikulec, I Rabady, D Rad, N Rahbaran, B Rohringer, H Schieck, J Schöfbeck, R Strauss, J Treberer-Treberspurg, W Waltenberger, W Wulz, CE Mossolov, V Shumeiko, N Suarez Gonzalez, J Alderweireldt, S Cornelis, T De Wolf, EA Janssen, X Knutsson, A Lauwers, J Luyckx, S Van De Klundert, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Van Spilbeeck, A Abu Zeid, S Blekman, F D Hondt, J Daci, N De Bruyn, I Deroover, K Heracleous, N Keaveney, J Lowette, S Moortgat, S Moreels, L Olbrechts, A Python, Q Strom, D Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Van Parijs, I Barria, P Brun, H Caillol, C Clerbaux, B De Lentdecker, G Fasanella, G Favart, L Goldouzian, R Grebenyuk, A Karapostoli, G Lenzi, T Léonard, A Maerschalk, T Marinov, A Perniè, L Randle-conde, A Seva, T Vander Velde, C Vanlaer, P Yonamine, R Zenoni, F Zhang, F Beernaert, K Benucci, L Cimmino, A Crucy, S Dobur, D Fagot, A Garcia, G Gul, M Mccartin, J Ocampo Rios, AA |
Keywords: | Higgs bosons;Proton-proton collisions;LHC |
Issue Date: | 2016 |
Publisher: | Springer |
Citation: | European Physical Journal C, 76(7): (2016) |
Abstract: | A search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at s=8TeV. The data correspond to an integrated luminosity of 19.7fb-1. The search considers H H resonances with masses between 1 and 3TeV, having final states of two b quark pairs. Each Higgs boson is produced with large momentum, and the hadronization products of the pair of b quarks can usually be reconstructed as single large jets. The background from multijet and t t ¯ events is significantly reduced by applying requirements related to the flavor of the jet, its mass, and its substructure. The signal would be identified as a peak on top of the dijet invariant mass spectrum of the remaining background events. No evidence is observed for such a signal. Upper limits obtained at 95 % confidence level for the product of the production cross section and branching fraction σ(gg→X)B(X→HH→bb¯bb¯) range from 10 to 1.5 fb for the mass of X from 1.15 to 2.0TeV, significantly extending previous searches. For a warped extra dimension theory with a mass scale ΛR= 1 TeV, the data exclude radion scalar masses between 1.15 and 1.55TeV. |
URI: | http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-016-4206-6 http://bura.brunel.ac.uk/handle/2438/13159 |
DOI: | http://dx.doi.org/10.1140/epjc/s10052-016-4206-6 |
ISSN: | 1434-6044 1434-6052 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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