Measurement of the ZZ Production Cross Section in Pp{u00AF} Collisions at S
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2011 |
ISBN-10 | : OCLC:1064090436 |
ISBN-13 | : |
Rating | : 4/5 (36 Downloads) |
Download or read book Measurement of the ZZ Production Cross Section in Pp{u00AF} Collisions at S written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a new measurement of the production cross section ?(pp = ZZ) at a center-of-mass energy √s = 1.96 TeV, obtained from the analysis of the four charged lepton final state l+l-l+̀l-̀(l, l ̀= e or ?). They observe ten candidate events with an expected background of 0.37 ± 0.13 events. The measured cross section ?(pp =ZZ) = 1.26-0.37+0.47 (stat) ± 0.14 (syst) pb is in agreement with NLO QCD predictions. This result is combined with a previous result from the ZZ = l+l- ?? channel resulting in a combined cross section of ?(pp = ZZ) = 1.40-0.37-0.43 (stat) ±0.14 (syst) pb.