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http://bura.brunel.ac.uk/handle/2438/12140
Title: | Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into τ leptons in pp collisions at √s=8 TeV |
Authors: | The, CMSC 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 Knünz, V König, A Krammer, M Krätschmer, I Liko, D Matsushita, T Mikulec, I Rabady, D 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 Rougny, R 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 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 Grebenyuk, A Karapostoli, G Lenzi, T Léonard, A Maerschalk, T Marinov, A Perniè, L Randle-conde, A Reis, T Seva, T Vander Velde, C Vanlaer, P Yonamine, R Zenoni, F Zhang, F Beernaert, K Benucci, L |
Keywords: | Supersymmetry;Hadron-Hadron scattering;Higgs physics |
Issue Date: | 2016 |
Publisher: | Springer Berlin Heidelberg |
Citation: | Journal of High Energy Physics, 2016 (1): 79, pp. 1 - 46, (2016) |
Abstract: | A search for a very light Higgs boson decaying into a pair of τ leptons is presented within the framework of the next-to-minimal supersymmetric standard model. This search is based on a data set corresponding to an integrated luminosity of 19.7 fb−1 of proton-proton collisions collected by the CMS experiment at a centre-of-mass energy of 8 TeV. The signal is defined by the production of either of the two lightest scalars, h1 or h2, via gluon-gluon fusion and subsequent decay into a pair of the lightest Higgs bosons, a1 or h1. The h1 or h2 boson is identified with the observed state at a mass of 125 GeV. The analysis searches for decays of the a1 (h1) states into pairs of τ leptons and covers a mass range for the a1 (h1) boson of 4 to 8 GeV. The search reveals no significant excess in data above standard model background expectations, and an upper limit is set on the signal production cross section times branching fraction as a function of the a1 (h1) boson mass. The 95% confidence level limit ranges from 4.5 pb at ma1(mh1) = 8 GeV to 10.3 pb at ma1(mh1)=5 GeV. |
URI: | http://link.springer.com/article/10.1007%2FJHEP01%282016%29079 http://bura.brunel.ac.uk/handle/2438/12140 |
DOI: | http://dx.doi.org/10.1007/JHEP01(2016)079 |
ISSN: | 1126-6708 1029-8479 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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