Measurement of the W Charge Asymmetry in the Pp Collisions at [arrow]"
Author | : |
Publisher | : |
Total Pages | : 19 |
Release | : 2011 |
ISBN-10 | : OCLC:925464561 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Measurement of the W Charge Asymmetry in the Pp Collisions at [arrow]" written by and published by . This book was released on 2011 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This letter reports a measurement of the muon charge asymmetry from W Boson produced in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS experiment at the LHC. The asymmetry is measured in the W → [mu][nu] decay mode as a function of the muon pseudorapidity using a data sample corresponding to a total integrated luminosity of 31 pb-1. The results are compared to predictions based on next-to-leading order calculations with various parton distribution functions. The measurement provides information on the u and d quark momentum fractions in the proton.