Next-to-Next-to-Leading Logarithms in Four-Fermion Electroweak Processes at High Energy

Details Next-to-Next-to-Leading Logarithms in Four-Fermion Electroweak Processes at High Energy Next-to-Next-to-Leading Logarithms in Four-Fermion Electroweak Processes at High Energy

2001-06-27

arxiv.org/abs/hep-ph/0106298v3

Nucl.Phys. B616 (2001) 286-306; Erratum-ibid. B648 (2003) 455-456

Physics

High Energy Physics

High Energy Physics - Phenomenology

latex, 20 pages; coupling constant in the fermionic contribution to the electroweak corrections corrected

Scientific paper

10.1016/S0550-3213(01)00454-0

We sum up the next-to-next-to-leading logarithmic virtual electroweak corrections to the high energy asymptotics of the neutral current four-fermion processes for light fermions to all orders in the coupling constants using the evolution equation approach. From this all order result we derive finite order expressions through next-to-next-to leading order for the total cross section and various asymmetries. We observe an amazing cancellation between the sizable leading, next-to-leading and next-to-next-to-leading logarithmic contributions at TeV energies.

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