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Title: Search for anomalous Wtb couplings in single top quark production in pp collisions at √s = 1.96 TeV

We present new direct constraints on a general Wtb interaction using data corresponding to an integrated luminosity of 5.4 fb-1 collected by the D0 detector at the Tevatron pp collider. The standard model provides a purely left-handed vector coupling at the Wtb vertex, while the most general, lowest dimension Lagrangian allows right-handed vector and left- or right-handed tensor couplings as well. We obtain precise limits on these anomalous couplings by comparing the data to the expectations from different assumptions on the Wtb coupling.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [1] ;  [6]
  1. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  2. Univ. of Oklahoma, Norman, OK (United States)
  3. Tata Inst. of Fundamental Research, Mumbay (India)
  4. Univ. of Illinois, Chicago, IL (United States)
  5. Florida State Univ., Tallahassee, FL (United States)
  6. Petersburg Nuclear Physics Inst., St. Petersburg (Russia). et al.
Publication Date:
Report Number(s):
FERMILAB-PUB-11-561-E-PPD
Journal ID: ISSN 0370-2693; arXiv eprint number arXiv:1110.4592; TRN: US1105451
Grant/Contract Number:
AC02-07CH11359
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 708; Journal Issue: 1-2; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Contributing Orgs:
D0 Collaboration
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DIMENSIONS; FERMILAB TEVATRON; LAGRANGIAN FUNCTION; LUMINOSITY; PRODUCTION; STANDARD MODEL; T QUARKS; VECTORS; Experiment-HEP
OSTI Identifier:
1213828
Alternate Identifier(s):
OSTI ID: 1028480