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arXiv · 1111.7261

Production of Massive Color-Octet Vector Bosons at Next-to-Leading Order

R. Sekhar Chivukula·Arsham Farzinnia·Roshan Foadi·Elizabeth H. Simmons
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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.

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R. Sekhar Chivukula, Arsham Farzinnia, Roshan Foadi, Elizabeth H. Simmons. 2012-01-21. Production of Massive Color-Octet Vector Bosons at Next-to-Leading Order. https://doi.org/10.1103/physrevd.85.054005

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