We estimate the splitting between the spatial correlation lengths in the
scalar and pseudoscalar channels in QCD at high temperature. The splitting is
due to the contribution of the instanton/anti-instanton chains in the thermal
ensemble, even though instanton contributions to thermodynamic quantities are
suppressed. The splitting vanishes at asymptotically high temperatures as
$\Delta M/M(Łambda_QCD/T)^b$, where $b$ is the beta function
coefficient.
Description
U_A(1) Anomaly at high temperature: the scalar-pseudoscalar splitting in
QCD
%0 Generic
%1 Dunne2010
%A Dunne, Gerald V.
%A Kovner, Alex
%D 2010
%K 1 anomaly high temperature ua
%T U_A(1) Anomaly at high temperature: the scalar-pseudoscalar splitting in
QCD
%U http://arxiv.org/abs/1004.1075
%X We estimate the splitting between the spatial correlation lengths in the
scalar and pseudoscalar channels in QCD at high temperature. The splitting is
due to the contribution of the instanton/anti-instanton chains in the thermal
ensemble, even though instanton contributions to thermodynamic quantities are
suppressed. The splitting vanishes at asymptotically high temperatures as
$\Delta M/M(Łambda_QCD/T)^b$, where $b$ is the beta function
coefficient.
@misc{Dunne2010,
abstract = { We estimate the splitting between the spatial correlation lengths in the
scalar and pseudoscalar channels in QCD at high temperature. The splitting is
due to the contribution of the instanton/anti-instanton chains in the thermal
ensemble, even though instanton contributions to thermodynamic quantities are
suppressed. The splitting vanishes at asymptotically high temperatures as
$\Delta M/M\propto (\Lambda_{QCD}/T)^b$, where $b$ is the beta function
coefficient.
},
added-at = {2010-04-08T14:04:44.000+0200},
author = {Dunne, Gerald V. and Kovner, Alex},
biburl = {https://www.bibsonomy.org/bibtex/26e60e949325af59f93b5e8feb7ad14ce/tamal},
description = {U_A(1) Anomaly at high temperature: the scalar-pseudoscalar splitting in
QCD},
interhash = {06c069f8d7b278fd8559e141ef68f839},
intrahash = {6e60e949325af59f93b5e8feb7ad14ce},
keywords = {1 anomaly high temperature ua},
note = {cite arxiv:1004.1075
Comment: 5 pp},
timestamp = {2010-04-08T14:04:44.000+0200},
title = {U_A(1) Anomaly at high temperature: the scalar-pseudoscalar splitting in
QCD},
url = {http://arxiv.org/abs/1004.1075},
year = 2010
}