Journal
PHYSICAL REVIEW D
Volume 77, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.77.053004
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Electroweak Sudakov logarithms at high energy, of the form (alpha/sin(2)theta(W))(n)log(m)s/M-Z,W(2), are summed using effective theory methods. The corrections are computed to processes involving two external particles in the standard model. The results include nonzero particle masses, such as the t-quark mass, electroweak mixing effects which lead to unequal W and Z masses, and radiative Higgs corrections proportional to the Yukawa couplings. We show that the matching at the scale M-W,M-Z has a term at most linear in logs/mu(2) to all orders. The effective theory formalism is compared with, and extends, previous work based on infrared evolution equations.
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