INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
EUROPEAN PHYSICAL JOURNAL C - PARTICLES AND FIELDS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2012 vol. 72 p. 1 - 25
ISSN:
1434-6044
Resumen:
A search for a fermiophobic Higgs boson using diphoton events produced
in proton-proton collisions at a centre-of-mass energy of
s√=7 TeV
is performed using data corresponding to an integrated luminosity of 4.9 fb−1
collected by the ATLAS experiment at the Large Hadron Collider. A
specific benchmark model is considered where all the fermion couplings
to the Higgs boson are set to zero and the bosonic couplings are kept at
the Standard Model values (fermiophobic Higgs model). The largest
excess with respect to the background-only hypothesis is found at
125.5 GeV, with a local significance of 2.9 standard deviations, which
reduces to 1.6 standard deviations when taking into account the
look-elsewhere effect. The data exclude the fermiophobic Higgs model in
the ranges 110.0118.0 GeV and 119.5121.0 GeV at 95 % confidence level.