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Production of massive color-octet vector bosons at next-to-leading order

R. Sekhar Chivukula^*, Arsham Farzinnia^†, and Elizabeth H. Simmons^‡

Roshan Foadi^§

Department of Physics, Michigan State University, East Lansing, Michigan 48824, USA

Service de Physique Théorique, Université Libre de Bruxelles, Brussels, Belgium and Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium

^*sekhar@msu.edu
^†farzinni@msu.edu
^‡esimmons@msu.edu
^§foadiros@msu.edu

Phys. Rev. D 85, 054005 – Published 5 March, 2012

DOI: https://doi.org/10.1103/PhysRevD.85.054005

Abstract

We report the first complete calculation of QCD corrections to the production of a massive color-octet vector boson. Our next-to-leading-order (NLO) calculation includes both virtual corrections as well as corrections arising from the emission of gluons and light quarks, and we demonstrate the reduction in factorization-scale dependence relative to the leading-order approximation used in previous hadron collider studies. We show that the QCD NLO corrections to coloron production are as large as 30%, and that the residual factorization scale-dependence is reduced to of order 2%. We also calculate the $K$ -factor and the $p_{T}$ spectrum for coloron production, since these are valuable for comparison with experiment. Our results apply directly to the production of the massive color-octet vector bosons in axigluon, topcolor, and coloron models, and approximately to the production of KK gluons in extra-dimensional models or color-octet technivector mesons in technicolor models.

See Also

Hadron collider production of massive color-octet vector bosons at next-to-leading order

R. Sekhar Chivukula, Elizabeth H. Simmons, Arsham Farzinnia, and Jing Ren

Phys. Rev. D 87, 094011 (2013)

Article Text

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