Light Quark Mediated Higgs Boson Threshold Production in the Next-to-Leading Logarithmic Approximation

Abstract

We study the amplitude of the Higgs boson production in gluon fusion mediated by a light quark loop and evaluate the logarithmically enhanced radiative corrections to the next-to-leading logarithmic approximation which sums up the terms of the form ${\alpha }_s^n{\ln }^{2n-1}(m_H/m_q)$ to all orders in the strong coupling constant. This result is used for the calculation of the process cross section near the production threshold and gives a quantitative estimate of the three and four-loop bottom quark contribution to the Higgs boson production at the Large Hadron Collider.

arXiv comment25 pages, 6 figures, abelian contribution corrected

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