English

Thresholds in $\alpha_s$ evolution and the $p_T$ dependence of jets

High Energy Physics - Phenomenology 2009-09-15 v1 High Energy Physics - Experiment

Abstract

We point out that high-mass thresholds in the evolution of the strong-interaction coupling parameter αs\alpha_s, due to gluinos, squarks and possible new heavy quarks, could introduce appreciable corrections to the transverse momentum dependence of jet production at the Tevatron. If the new thresholds were near scale μ=200\mu = 200~GeV, then within the limits of asymptotic freedom they could introduce up to 11%11\% increase in αs(μ)\alpha_s(\mu) (and hence 23%23\% increase in jet production) at scale μ=500\mu=500 GeV, compared to Standard Model extrapolations.

Keywords

Cite

@article{arxiv.hep-ph/9512325,
  title  = {Thresholds in $\alpha_s$ evolution and the $p_T$ dependence of jets},
  author = {V. Barger and M. S. Berger and R. J. N. Phillips},
  journal= {arXiv preprint arXiv:hep-ph/9512325},
  year   = {2009}
}

Comments

4 pages, plain Latex, one postscript figure (included). Compressed postscript file of paper with figure can also be obtained from http://phenom/physics.wisc.edu/pub/preprints/1995/madph-95-920.ps.Z or from ftp://phenom/physics.wisc.edu/pub/preprints/1995/madph-95-920.ps.Z