# EPS-HEP2021 conference

26-30 July 2021
Zoom
Europe/Berlin timezone

## One-Loop Correlators of Charged Fermionic Currents Modified by Electromagnetic Fields and Their Applications

Not scheduled
20m
Zoom

#### Zoom

Poster Astroparticle and Gravitational Waves

### Speaker

Prof. Alexander Parkhomenko (P.G. Demidov Yaroslavl State University)

### Description

The non-diagonal correlators of tensor fermionic current with scalar, pseudoscalar, vector and axial-vector ones are considered as examples of the two-point one-loop amplitudes modified by a constant homogeneous magnetic field. The crossed-field limit of this correlators are found. The tensor current is a fermionic part of the Pauli Lagrangian relevant for the electromagnetic interaction of fermions through the anomalous magnetic moment. Under an assumption that this interaction enters the effective QED Lagrangian, the contribution to the photon polarization operator in AMM is calculated. Other examples where a photon is interacting with neutral particles like an axion-like particle are also presented.

Email parkh@uniyar.ac.ru Theory Alexander Parkhomenko

### Primary authors

Prof. Alexander Parkhomenko (P.G. Demidov Yaroslavl State University) Mr Ilya Karabanov (P.G. Demidov Yaroslavl State University) Alexandra Dobrynina (P. G. Demidov Yaroslavl State University & University of Hamburg) Prof. Lubov Vassilevskaya (Fulda University of Applied Sciences)