29 September 2015 to 2 October 2015
DESY Hamburg
Europe/Berlin timezone

Order $g^2$ susceptibilities in the symmetric phase of the Standard Model

1 Oct 2015, 15:00
Seminar room 2 (DESY Hamburg)

Seminar room 2

DESY Hamburg


Mr Marc Sangel (Universität Bielefeld)


Susceptibilities of conserved charges such as baryon minus lepton number enter baryogenesis computations, since they provide the relationship between conserved charges and chemical potentials. Their next-to-leading order corrections are of order $ g $, where $ g $ is a generic Standard Model coupling. They are due to soft Higgs boson exchange, and have been calculated recently, together with some order $ g ^ 2 $ corrections. Here we compute the complete $ g ^ 2 $ contributions. Close to the electroweak crossover the soft Higgs contribution is of order $ g ^ 2 $, and is determined by the non-perturbative physics at the magnetic screening scale.

Primary authors

Prof. Dietrich BÖdeker (Universität Bielefeld) Mr Marc Sangel (Universität Bielefeld)

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