QCD CORRECTIONS AND NONSTANDARD 3 VECTOR BOSON COUPLINGS IN W- PRODUCTION AT HADRON COLLIDERS(W)

Citation
U. Baur et al., QCD CORRECTIONS AND NONSTANDARD 3 VECTOR BOSON COUPLINGS IN W- PRODUCTION AT HADRON COLLIDERS(W), Physical review. D. Particles and fields, 53(3), 1996, pp. 1098-1123
Citations number
162
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
53
Issue
3
Year of publication
1996
Pages
1098 - 1123
Database
ISI
SICI code
0556-2821(1996)53:3<1098:QCAN3V>2.0.ZU;2-X
Abstract
The process pp((-)) --> W+W- + X --> l(1)(+)nu(1)l(2)(-)<(nu)over bar( 2)> + X is calculated to O(alpha(s)) for general C- and P-conserving W WV couplings (V = gamma, Z). The prospects for probing the WWV couplin gs in this reaction are explored. The impact of O(alpha(s)) QCD correc tions and various background processes on the observability of nonstan dard WWV couplings in W+W- production at the Fermilab Tevatron and the CERN Large Hadron Collider (LHC) is discussed in detail. The transver se momentum distribution of the charged lepton pair is found to be par ticularly sensitive to both anomalous couplings and QCD corrections. S ensitivity limits for anomalous WWV couplings are derived at next-to-l eading-order for the Fermilab Tevatron and LHC center-of-mass energies , and are compared to the bounds which can be achieved in other proces ses. Unless a jet veto or a cut on the total transverse momentum of th e hadrons in the event is imposed, the Q(alpha(s)) QCD corrections and the background from top quark production decrease the sensitivity of pp((-)) --> W+W- + X --> l(1)(+)nu(1)l(2)(-)<(nu)over bar(2)> + X to a nomalous WWV couplings by a factor 2 to 5.