Please use this identifier to cite or link to this item: http://buratest.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 Computer Engineering Research Papers

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