Production-decay interferences at next-to-leading order in QCD for t-channel single-top-quark production
Abstract
We present a calculation of O(αs) contributions to the process of t-channel single-top production and decay, which include virtual and real corrections arising from the interference of the production and decay subprocesses. The calculation is organized as a simultaneous expansion of the matrix elements in the couplings αew, αs and the virtuality of the intermediate top quark, (pt2-mt2)/mt2∼Γt/mt, and extends earlier results beyond the narrow-width approximation.
- Publication:
-
Physical Review D
- Pub Date:
- September 2010
- DOI:
- 10.1103/PhysRevD.82.054028
- arXiv:
- arXiv:1007.0893
- Bibcode:
- 2010PhRvD..82e4028F
- Keywords:
-
- 14.65.Ha;
- Top quarks;
- High Energy Physics - Phenomenology
- E-Print:
- 33 pages, 6 Figures