Electroweak Form Factor in Sudakov and Threshold Regimes with Effective Field Theories

Autor:	Assi, B., Kniehl, Bernd
Rok vydání:	2020
Předmět:	High Energy Physics - Phenomenology effective field theory High Energy Physics - Phenomenology (hep-ph) Sudakov threshold Higgs model radiative correction FOS: Physical sciences composite [operator] form factor [electroweak interaction] SU(N) [gauge field theory] renormalization
DOI:	10.48550/arxiv.2011.14933
Popis:	We compute the massive gauge and scalar corrections to form factors in both the Sudakov and threshold regimes up to and including two-loop orders. The corrections are calculated for processes involving two external fermions and scalars in the spontaneously broken SU(N)-Higgs model, examining a range of composite operators. Our results are general, so we discuss how our form factors are mappable from our model to the Standard Model and beyond. The effective theory formalism deployed in our work extends previous studies based on infrared evolution equations, which either neglect scalar contributions or are restricted to the Sudakov regime. Comment: 80 pages, 11 figures. arXiv admin note: text overlap with arXiv:0712.0396, arXiv:hep-ph/0603133 by other authors
Databáze:	OpenAIRE
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