Title The oblique parameters from arbitrary new fermions /
Authors Albergaria, F ; Jurčiukonis, Darius ; Lavoura, L
DOI 10.1007/JHEP05(2024)190
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Is Part of Journal of high energy physics.. New York : Springer Science and Business Media LLC. 2024, iss. 5, art. no. 190, p. [1-29].. ISSN 1126-6708. eISSN 1029-8479
Keywords [eng] electroweak precision physics ; higher order electroweak calculations ; other weak scale BSM models
Abstract [eng] We compute the six oblique parameters S , T , U , V , W , X in a New Physics Model with an arbitrary number of new fermions, in arbitrary representations of SU(2) × U(1), and mixing arbitrarily among themselves. We show that S and U are automatically finite, but T is finite only if there is a specific relation between the masses of the new fermions and the representations of SU(2) × U(1) that they sit in. We apply our general computation to two illustrative cases.
Published New York : Springer Science and Business Media LLC
Type Journal article
Language English
Publication date 2024
CC license CC license description