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Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment
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Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment
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| dc.contributor.author | ATLAS Collaboration | |
| dc.contributor.author | Cabrera Urbán, Susana | |
| dc.contributor.author | Castillo Giménez, María Victoria | |
| dc.contributor.author | Costa Mezquita, María José | |
| dc.contributor.author | Fassi, Farida | |
| dc.contributor.author | Ferrer Soria, Antonio | |
| dc.contributor.author | Fiorini, Luca | |
| dc.contributor.author | Fuster Verdú, Juan A. | |
| dc.contributor.author | García García, Carmen | |
| dc.contributor.author | García Navarro, José Enrique | |
| dc.contributor.author | González de la Hoz, Santiago | |
| dc.contributor.author | Hernández Jiménez, Yesenia | |
| dc.contributor.author | Higón Rodríguez, Emilio | |
| dc.contributor.author | Irles Quiles, Adrián | |
| dc.contributor.author | Kaci, Mohammed | |
| dc.contributor.author | Lacasta Llácer, Carlos | |
| dc.contributor.author | Lacuesta Miquel, Vicente | |
| dc.contributor.author | March Ruiz, Luis | |
| dc.contributor.author | Martí García, Salvador | |
| dc.contributor.author | Miñano Moya, Mercedes | |
| dc.contributor.author | Mitsou, Vasiliki | |
| dc.contributor.author | Moles Valls, Regina | |
| dc.contributor.author | Moreno Llácer, María | |
| dc.contributor.author | Oliver García, Elena | |
| dc.contributor.author | Pedraza López, Sebastián | |
| dc.contributor.author | Pérez García-Estañ, María Teresa | |
| dc.contributor.author | Romero Adam, E. | |
| dc.contributor.author | Ros Martínez, Eduardo | |
| dc.contributor.author | Salt Cairols, José | |
| dc.contributor.author | Sánchez Martínez, Victoria | |
| dc.contributor.author | Soldevila, U. | |
| dc.contributor.author | Sánchez Martínez, Javier | |
| dc.contributor.author | Torró Pastor, Emma | |
| dc.contributor.author | Valero Biot, Alberto | |
| dc.contributor.author | Valladolid Gallego, E. | |
| dc.contributor.author | Valls Ferrer, Juan Antonio | |
| dc.contributor.author | Villaplana Pérez, Miguel | |
| dc.contributor.author | Vos, Marcel | |
| dc.date.accessioned | 2015-08-24T10:55:27Z | |
| dc.date.available | 2015-08-24T10:55:27Z | |
| dc.date.issued | 2013 | |
| dc.identifier.citation | ATLAS Collaboration Cabrera Urbán, Susana Castillo Giménez, María Victoria Costa Mezquita, María José Fassi, Farida Ferrer Soria, Antonio Fiorini, Luca Fuster Verdú, Juan A. García García, Carmen García Navarro, José Enrique González de la Hoz, Santiago Hernández Jiménez, Yesenia Higón Rodríguez, Emilio Irles Quiles, Adrián Kaci, Mohammed Lacasta Llácer, Carlos Lacuesta Miquel, Vicente March Ruiz, Luis Martí García, Salvador Miñano Moya, Mercedes Mitsou, Vasiliki Moles Valls, Regina Moreno Llácer, María Oliver García, Elena Pedraza López, Sebastián Pérez García-Estañ, María Teresa Romero Adam, E. Ros Martínez, Eduardo Salt Cairols, José Sánchez Martínez, V. Soldevila, U. Sánchez, J. Torró Pastor, Emma Valero Biot, Alberto Valladolid Gallego, E. Valls Ferrer, Juan Antonio Villaplana Pérez, Miguel Vos, Marcel 2013 Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment Journal of High Energy Physics 03 3 076-1 076-36 | |
| dc.identifier.uri | http://hdl.handle.net/10550/46734 | |
| dc.description.abstract | In several extensions of the Standard Model, the top quark can decay into a bottom quark and a light charged Higgs boson H+, t to bH+, in addition to the Standard Model decay t to bW. Since W bosons decay to the three lepton generations equally, while H+ may predominantly decay into tau+nu, charged Higgs bosons can be searched for using the violation of lepton universality in top quark decays. The analysis in this paper is based on 4.6/fb of proton-proton collision data at sqrt(s) = 7 TeV collected by the ATLAS experiment at the Large Hadron Collider. Signatures containing leptons (e or mu) and/or a hadronically decaying tau (tau_had) are used. Event yield ratios between e+tau_had and e+mu, as well as between mu+tau_had and mu+e, final states are measured in the data and compared to predictions from simulations. This ratio-based method reduces the impact of systematic uncertainties in the analysis. No significant deviation from the Standard Model predictions is observed. With the assumption that the branching fraction B(H+ to tau+nu) is 100%, upper limits in the range 3.2%-4.4% can be placed on the branching fraction B(t to bH+) for charged Higgs boson masses m(H+) in the range 90-140 GeV. After combination with results from a search for charged Higgs bosons in ttbar decays using the tau_had+jets final state, upper limits on B(t to bH+) can be set in the range 0.8%-3.4%, for m(H+) in the range 90-160 GeV. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Journal of High Energy Physics, 2013, vol. 03, num. 3, p. 076-1-076-36 | |
| dc.subject | Física | |
| dc.title | Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-08-24T10:55:27Z | |
| dc.identifier.doi | 10.1007/JHEP03(2013)076 | |
| dc.identifier.idgrec | 091433 | |
| dc.rights.accessRights | open access | es_ES |
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