Inclusive and Differential Measurements of the T T-bar Charge Asymmetry in Proton-proton Collisions at Sqrt(s)
Author | : |
Publisher | : |
Total Pages | : 31 |
Release | : 2012 |
ISBN-10 | : OCLC:1066370519 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Inclusive and Differential Measurements of the T T-bar Charge Asymmetry in Proton-proton Collisions at Sqrt(s) written by and published by . This book was released on 2012 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The t t-bar charge asymmetry is measured in events containing a charged lepton (electron or muon) and at least four jets, one of which is identified as originating from b-quark hadronization. The analyzed dataset corresponds to an integrated luminosity of 5.0 inverse femtobarns collected with the CMS detector at the LHC. An inclusive and three differential measurements of the t t-bar charge asymmetry as a function of rapidity, transverse momentum, and invariant mass of the t t-bar system are presented. The measured inclusive t t-bar charge asymmetry is A(C) = 0.004 +/- 0.010 (stat.) +/- 0.011 (syst.). This result and the three differential measurements are consistent with zero asymmetry as well as with the predictions of the standard model.