A search for the decays of the Higgs and Z bosons to J/ψγ and (nS)γ (n=1,2,3) is performed with pp collision data samples corresponding to integrated luminosities of up to 20.3fb-1 collected at s=8TeV with the ATLAS detector at the CERN Large Hadron Collider. No significant excess of events is observed above expected backgrounds and 95% C.L. upper limits are placed on the branching fractions. In the J/ψγ final state the limits are 1.5×10-3 and 2.6×10-6 for the Higgs and Z boson decays, respectively, while in the (1S,2S,3S)γ final states the limits are (1.3,1.9,1.3)×10-3 and (3.4,6.5,5.4)×10-6, respectively.

Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., et al. (2015). Search for higgs and Z boson decays to J/ψγ and (nS)γ with the ATLAS detector. PHYSICAL REVIEW LETTERS, 114(12), 1-19 [10.1103/PhysRevLett.114.121801].

Search for higgs and Z boson decays to J/ψγ and (nS)γ with the ATLAS detector

ALBERGHI, GIAN LUIGI;BELLAGAMBA, LORENZO;BOSCHERINI, DAVIDE;BRUNI, ALESSIA;BRUNI, GRAZIANO;DE CASTRO, STEFANO;FABBRI, LAURA;FRANCHINI, MATTEO;GABRIELLI, ALESSANDRO;GIACOBBE, BENEDETTO;LASAGNI MANGHI, FEDERICO;MASSA, LORENZO;MENGARELLI, ALBERTO;POLINI, ALESSANDRO;RINALDI, LORENZO;ROMANO, MARINO;SBARRA, CARLA;SEMPRINI CESARI, NICOLA;Skinner, M. B.;SPIGHI, ROBERTO;VALENTINETTI, SARA;VILLA, MAURO;Vivarelli, I.;ZOCCOLI, ANTONIO;
2015

Abstract

A search for the decays of the Higgs and Z bosons to J/ψγ and (nS)γ (n=1,2,3) is performed with pp collision data samples corresponding to integrated luminosities of up to 20.3fb-1 collected at s=8TeV with the ATLAS detector at the CERN Large Hadron Collider. No significant excess of events is observed above expected backgrounds and 95% C.L. upper limits are placed on the branching fractions. In the J/ψγ final state the limits are 1.5×10-3 and 2.6×10-6 for the Higgs and Z boson decays, respectively, while in the (1S,2S,3S)γ final states the limits are (1.3,1.9,1.3)×10-3 and (3.4,6.5,5.4)×10-6, respectively.
2015
Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., et al. (2015). Search for higgs and Z boson decays to J/ψγ and (nS)γ with the ATLAS detector. PHYSICAL REVIEW LETTERS, 114(12), 1-19 [10.1103/PhysRevLett.114.121801].
Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; Abouzeid, O.S.; Abramowicz, H.; Abreu, H.; Abreu, R....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/548429
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