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  • Amato, S; Archilli, F; Artamonov, A; Belyaev, I; Bifani, S; Bocci, V; Bondar, A; Bozzi, C; Casse, G; Clarke, P. E. L; Coca, C; Corti, G; De Bonis, I; De Bruyn, K; De Silva, W; Deckenhoff, M; Dzhelyadin, R; Eidelman, S; Rifai, I. El; Fave, V; Fontana, M; Furfaro, E; Torreira, A. Gallas; Golutvin, A; Gordon, H; Diaz, R. Graciani; Grünberg, O; Guz, Yu; Gys, T; Hampson, T; He, J; Hennessy, K; Henrard, P; Jost, B; Korolev, M; Kravchuk, L; Lambert, R. W; Lazzeroni, C; Liles, M; Asamar, E. Lopez; Lopez-March, N; Luo, H; Machikhiliyan, I. V; Martellotti, G; Sánchez, A. Martín; Matteuzzi, C; Maurice, E; McCarthy, J; Mcnab, A; Meadows, B; Meier, F; Minard, M. -N; Müller, K; Muryn, B; Nandakumar, R; Nasteva, I; Owen, P; Oyanguren, A; Pal, B. K; Papanestis, A; Penso, G; Trigo, E. Perez; Pilař, T; Playfer, S; Powell, A; Navarro, A. Puig; Rauschmayr, N; Raven, G; Rodrigues, E; Perez, P. Rodriguez; Rouvinet, J; Sapunov, M; Schlupp, M; Schneider, O; Schune, M. -H; Serrano, J; Shapoval, I; Skwarnicki, T; Smith, M; Sokoloff, M. D; Soler, F. J. P; Steinkamp, O; Storaci, B; Teodorescu, E; Tournefier, E; Tsaregorodtsev, A; Tsopelas, P; Ukleja, A; Gomez, R. Vazquez; Regueiro, P. Vazquez; Vecchi, S; Volyanskyy, D; Voss, H; Waldi, R; Ward, D. R; Websdale, D; Whitehead, M; Xing, F; Yushchenko, O; Zhang, L

    04/2013
    Journal Article

    Journal of High Energy Physics Volume 2013, Number 5 (2013), 132 Limits on the cross-section times branching fraction for neutral Higgs bosons, produced in $pp$ collisions at $\sqrt{s} = 7$ TeV, and decaying to two tau leptons with pseudorapidities between 2.0 and 4.5, are presented. The result is based on a dataset, corresponding to an integrated luminosity of 1.0 $\mathrm{fb}^{-1}$, collected with the LHCb detector. Candidates are identified by reconstructing final states with two muons, a muon and an electron, a muon and a hadron, or an electron and a hadron. A model independent upper limit at the 95% confidence level is set on a neutral Higgs boson cross-section times branching fraction. It varies from 8.6 pb for a Higgs boson mass of 90 GeV to 0.7 pb for a Higgs boson mass of 250 GeV, and is compared to the Standard Model expectation. An upper limit on $\tan\beta$ in the Minimal Supersymmetric Model is set in the $m_{h^0}^\mathrm{max}$ scenario. It ranges from 34 for a CP-odd Higgs boson mass of 90 GeV to 70 for a pseudo-scalar Higgs boson mass of 140 GeV.