Production of massive color-octet vector bosons at next-to-leading order
(2012) Physical Review. D, Particles, Fields, Gravitation and Cosmology — Vol. 85, n° 5, p. 054005 (20 pages) (2012)
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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 pT 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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Citations
Sekhar Chivukula, R., Farzinnia, A., Simmons, E. H., & Foadi, R. (2012). Production of massive color-octet vector bosons at next-to-leading order. Physical Review. D, Particles, Fields, Gravitation and Cosmology, 85(5), 054005 (20 pages). https://doi.org/10.1103/PhysRevD.85.054005 (Original work published 2012)