INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s = 7 TeV pp collisions at the LHC
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2011 p. 1 - 23
ISSN:
0031-9007
Resumen:
This Letter presents the first search for a heavy particle decaying into
an e\mu final state in sqrt(s)=7 TeV pp collisions at the LHC. The data
were recorded by the ATLAS detector during 2010 and correspond to a
total integrated luminosity of 35/pb. No excess above the Standard Model
background expectation is observed. Exclusions at 95% confidence level
are placed on two representative models. In an R-parity violating
supersymmetric model, tau sneutrinos with a mass below 0.75 TeV are
excluded, assuming single coupling dominance and the couplings
lambda'_{311}=0.11, lambda_{312}=0.07. In a lepton flavor violating
model, a Z'-like vector boson with masses of 0.70 to 1.00 TeV and
corresponding cross sections times branching ratios of 0.175 to 0.183 pb
is excluded. These results extend to higher mass RPV sneutrinos and LFV
Z's than previous constraints from the Tevatron.