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Two-loop electroweak logarithms in four-fermion processes at high energy
2005
Nuclear Physics B
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We present the complete analytical result for the two-loop logarithmically enhanced contributions to the high energy asymptotic behavior of the vector form factor and the four-fermion cross section in a spontaneously broken SU(2) gauge model. On the basis of this result we derive the dominant two-loop electroweak corrections to the neutral current four-fermion processes at high energies. Previously neglected effects of the gauge boson mass difference are included through the next-to-next-to-leading logarithmic approximation.
doi:10.1016/j.nuclphysb.2005.10.010
fatcat:ad2mp2e63bawjabo4mpmiu2qma