A search for doubly charged Higgs bosons de- caying to pairs of electrons and/or muons is presented. The search is performed using a data sample corresponding to an integrated luminosity of 4.7 fb − 1 of pp collisions at √ s = 7 TeV collected by the ATLAS detector at the LHC. Pairs of prompt, isolated, high- p T leptons with the same electric charge ( e ± e ± , e ± μ ± , μ ± μ ± ) are selected, and their invari- ant mass distribution is searched for a narrow resonance. No significant excess over Standard Model background ex- pectations is observed, and limits are placed on the cross section times branching ratio for pair production of dou- bly charged Higgs bosons. The masses of doubly charged Higgs bosons are constrained depending on the branching ratio into these leptonic final states. Assuming pair produc- tion, coupling to left-handed fermions, and a branching ra- tio of 100 % for each final state, masses below 409 GeV, 375 GeV, and 398 GeV are excluded for e ± e ± , e ± μ ± , and μ ± μ ± , respectively

The ATLAS Collaboration, G. Aad, T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, et al. (2012). Search for doubly charged Higgs bosons in like-sign dilepton final states at $\sqrt{s} = 7\ \mathrm{TeV}$ with the ATLAS detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 72, 2244-1-2244-18 [10.1140/epjc/s10052-012-2244-2].

Search for doubly charged Higgs bosons in like-sign dilepton final states at $\sqrt{s} = 7\ \mathrm{TeV}$ with the ATLAS detector

BELLAGAMBA, LORENZO;BERTIN, ANTONIO;BOSCHERINI, DAVIDE;BRUNI, ALESSIA;BRUNI, GRAZIANO;CAFORIO, DAVIDE;DE CASTRO, STEFANO;DI SIPIO, RICCARDO;FABBRI, LAURA;FRANCHINI, MATTEO;GIACOBBE, BENEDETTO;MASSA, IGNAZIO GIACOMO;MENGARELLI, ALBERTO;MONZANI, SIMONE;PICCININI, MAURIZIO;RINALDI, LORENZO;ROMANO, MARINO;SBARRA, CARLA;SBRIZZI, ANTONIO;SEMPRINI CESARI, NICOLA;SPIGHI, ROBERTO;VALENTINETTI, SARA;VILLA, MAURO;I. Vivarelli;ZOCCOLI, ANTONIO;
2012

Abstract

A search for doubly charged Higgs bosons de- caying to pairs of electrons and/or muons is presented. The search is performed using a data sample corresponding to an integrated luminosity of 4.7 fb − 1 of pp collisions at √ s = 7 TeV collected by the ATLAS detector at the LHC. Pairs of prompt, isolated, high- p T leptons with the same electric charge ( e ± e ± , e ± μ ± , μ ± μ ± ) are selected, and their invari- ant mass distribution is searched for a narrow resonance. No significant excess over Standard Model background ex- pectations is observed, and limits are placed on the cross section times branching ratio for pair production of dou- bly charged Higgs bosons. The masses of doubly charged Higgs bosons are constrained depending on the branching ratio into these leptonic final states. Assuming pair produc- tion, coupling to left-handed fermions, and a branching ra- tio of 100 % for each final state, masses below 409 GeV, 375 GeV, and 398 GeV are excluded for e ± e ± , e ± μ ± , and μ ± μ ± , respectively
2012
The ATLAS Collaboration, G. Aad, T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, et al. (2012). Search for doubly charged Higgs bosons in like-sign dilepton final states at $\sqrt{s} = 7\ \mathrm{TeV}$ with the ATLAS detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 72, 2244-1-2244-18 [10.1140/epjc/s10052-012-2244-2].
The ATLAS Collaboration;G. Aad;T. Abajyan;B. Abbott;J. Abdallah;S. Abdel Khalek;A. A. Abdelalim;O. Abdinov;R. Aben;B. Abi;M. Abolins;O. S. AbouZeid;H....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/142481
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