IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
. Search for Higgs boson decays to a photon and a Z boson in pp collisions at s√=7 and 8 TeV with the ATLAS detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 231 p. 1 - 23
ISSN:
0370-2693
Resumen:
A search is reported for a neutral Higgs boson in the decay channel H → Zγ, Z → l+ l− (l = e, μ),√√using 4.5 fb−1 of pp collisions at s = 7 TeV and 20.3 fb−1 of pp collisions at s = 8 TeV, recordedby the ATLAS detector at the CERN Large Hadron Collider. The observed distribution of the invariantmass of the three final-state particles, mllγ , is consistent with the Standard Model hypothesis in theinvestigated mass range of 120?150 GeV. For a Higgs boson with a mass of 125.5 GeV, the observedupper limit at the 95% confidence level is 11 times the Standard Model expectation. Upper limitsare set on the cross section times branching ratio of a neutral Higgs boson with mass in the range√120?150 GeV between 0.13 and 0.5 pb for s = 8 TeV at 95% confidence level.
