QCD corrections and nonstandard three vector boson couplings in {ital W}{sup +}{ital W}{sup {minus}} production at hadron colliders
- Department of Physics, State University of New York at Buffalo, Buffalo, New York 14260 (United States)
- Department of Physics, University of California, Davis, California 95616 (United States)
The process {ital pp}{sup (}{sup {minus}}{sup )}{r_arrow}{ital W}{sup +}{ital W}{sup {minus}}+{ital X}{r_arrow}{ital l}{sub 1}{sup +}{nu}{sub 1}{ital l}{sub 2}{sup {minus}}{bar {nu}}{sub 2}+{ital X} is calculated to {ital O}({alpha}{sub {ital s}}) for general {ital G}- and {ital P}-conserving {ital WWV} couplings ({ital V}={gamma},{ital Z}). The prospects of probing the {ital WWV} couplings in this reaction are explored. The impact of {ital O}({alpha}{sub {ital s}}) QCD corrections and various background processes on the observability of nonstandard {ital WWV} couplings in {ital W}{sup +}{ital W}{sup {minus}} production at the Fermilab Tevatron and the CERN Large Hadron Collider (LHC) is discussed in detail. The transverse momentum distribution of the charged lepton pair is found to be particularly sensitive to both anomalous couplings and QCD corrections. Sensitivity limits for anomalous {ital WWV} couplings are derived at next-to-leading order for the Fermilab Tevatron and LHC center of mass energies, and are compared to the bounds which can be achieved in other processes. Unless a jet veto or a cut on the total transverse momentum of the hadrons in the event is imposed, the {ital O}({alpha}{sub {ital s}}) QCD corrections and the background from top quark production decrease the sensitivity of {ital pp}{sup (}{sup {minus}}{sup )}{r_arrow}{ital W}{sup +}{ital W}{sup {minus}}+{ital X}{r_arrow}{ital l}{sub 1}{sup +}{nu}{sub 1}{ital l}{sub 2}{sup {minus}}{bar {nu}}{sub 2}+{ital X} to anomalous {ital WWV} couplings by a factor 2 to 5. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- University of California
- DOE Contract Number:
- FG03-91ER40674
- OSTI ID:
- 278545
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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