Production-decay interferences at next-to-leading order in QCD <?format ?>for -channel single-top-quark production
P Falgari, P Mellor, A Signer - Physical Review D—Particles, Fields, Gravitation …, 2010 - APS
P Falgari, P Mellor, A Signer
Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2010•APSWe present a calculation of O (α 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 α ew, α s and the virtuality of
the intermediate top quark,(pt 2-mt 2)/mt 2∼ Γ t/mt, and extends earlier results beyond the
narrow-width approximation.
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 α ew, α s and the virtuality of
the intermediate top quark,(pt 2-mt 2)/mt 2∼ Γ t/mt, and extends earlier results beyond the
narrow-width approximation.
We present a calculation of contributions to the process of -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 , and the virtuality of the intermediate top quark, , and extends earlier results beyond the narrow-width approximation.
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