IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Measurement of the W to tau nu Cross Section in pp Collisions at √s = 7 TeV with the ATLAS experiment
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 231 p. 1 - 23
ISSN:
0370-2693
Resumen:
The cross section for the production of W bosons with subsequent decay W
to tau nu is measured with the ATLAS detector at the LHC. The analysis
is based on a data sample that was recorded in 2010 at a proton-proton
center-of-mass energy of sqrt(s) = 7 TeV and corresponds to an
integrated luminosity of 34 pb^-1. The cross section is measured in a
region of high detector acceptance and then extrapolated to the full
phase space. The product of the total W production cross section and the
W to tau nu branching ratio is measured to be 11.1 +/- 0.3 (stat) +/-
1.7 (syst) +/- 0.4 (lumi) nb.