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Title: Measurement of the W+W- cross section in √s = 7 TeV pp collisions with ATLAS

This Letter presents a measurement of the W+W- production cross section in √s = 7 TeV pp collisions by the ATLAS experiment, using 34 inverse pb-1 of integrated luminosity produced by the Large Hadron Collider at CERN. Selecting events with two isolated leptons, each either an electron or a muon, 8 candidate events are observed with an expected background of 1.7±0.6 events. The measured cross section is 41+20-16(stat) ± 5(syst) ± 1(lumi) pb, which is consistent with the standard model prediction of 44 ± 3 pb calculated at next-to-leading order in QCD.
Authors:
 [1]
  1. Albert-Ludwigs-Univ. (Germany)
Publication Date:
Grant/Contract Number:
FG02-95ER40893
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 107; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Univ. of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
ATLAS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; WW cross section
OSTI Identifier:
1099813
Alternate Identifier(s):
OSTI ID: 1195996