Production-decay interferences at next-to-leading order in QCD for t-channel single-top-quark production

Journal Article · Wed Sep 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.054028· OSTI ID:21432980

Falgari, P; Mellor, P; Signer, A ^[1]

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1. IPPP, Department of Physics, University of Durham, Durham DH1 3LE (United Kingdom)

We present a calculation of O({alpha}{sub s}) 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 {alpha}{sub ew}, {alpha}{sub s} and the virtuality of the intermediate top quark, (p{sub t}{sup 2}-m{sub t}{sup 2})/m{sub t}{sup 2{approx}{Gamma}}{sub t}/m{sub t}, and extends earlier results beyond the narrow-width approximation.

• OSTI ID: 21432980
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevD.82.054028; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPUTERIZED SIMULATION
CORRECTIONS
COUPLING
EXPANSION
INTERFERENCE
MATRIX ELEMENTS
PARTICLE DECAY
PARTICLE PRODUCTION
QUANTUM CHROMODYNAMICS
T CHANNEL
T QUARKS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARKS
SIMULATION
TOP PARTICLES