6533b825fe1ef96bd1282f08

RESEARCH PRODUCT

Measurement of the W to tau nu Cross Section in pp Collisions at sqrt(s) = 7 TeV with the ATLAS experiment

Atlas CollaborationVasiliki MitsouAntonio Ferrer SoriaLuca FioriniEduardo Ros MartínezJuan A. Fuster VerdúCarmen García GarcíaSusana Cabrera UrbánSalvador Martí GarcíaJosé Salt CairolsCarlos Lacasta LlácerJuan Antonio Valls FerrerMaría Victoria Castillo GiménezEmilio Higón RodríguezSantiago González De La HozMohammed KaciYesenia Hernández JiménezVicente Lacuesta MiquelMiguel Villaplana Pérez

subject

High Energy Physics::ExperimentFísica nuclear

description

The cross section for the production of W bosons with subsequent decay W -> tau nu(tau) 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 root 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 -> tau nu(tau) branching ratio is measured to be sigma(tot)(W -> tau nu tau) = 11.1 +/- 0.3 (stat) +/- 1.7 (syst) +/- 0.4 (lumi) nb.

yearjournalcountryeditionlanguage
2012-01-01
10.1016/j.physletb.2011.11.057http://dx.doi.org/10.1016/j.physletb.2011.11.057