Instanton effects on CP-violating gluonic correlators

Shingo Mori; Julien Frison; Ryuichiro Kitano; Hideo Matsufuru; Norikazu Yamada

doi:10.1051/epjconf/201817512009

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 175, 12009 (2018)
https://doi.org/10.1051/epjconf/201817512009

Instanton effects on CP-violating gluonic correlators

Shingo Mori¹^,2, Julien Frison², Ryuichiro Kitano¹^,2, Hideo Matsufuru² and Norikazu Yamada¹^,2

¹ Department of Particle and Nuclear Physics, The Graduate University for Advanced Studies (Sokendai), Tsukuba 305-0801, Japan
² High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan

Published online: 26 March 2018

Abstract

In order to better understand the role played by instantons behind nonperturbative dynamics, we investigate the instanton contributions to the gluonic two point correlation functions in the SU(2) YM theory. Pseudoscalar-scalar gluonic correlation functions are calculated on the lattice at various temperatures and compared with the instanton calculus. We discuss how the instanton effects emerge or disappear with temperature and try to provide the interpretation behind it.

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).