The topological susceptibility in finite temperature QCD and axion cosmology

We study the topological susceptibility in 2+1 flavor QCD above the chiral crossover transition temperature using Highly Improved Staggered Quark action and several lattice spacings corresponding to temporal extent of the lattice, Nτ=6,8,10 and 12. We observe very distinct temperature dependences of...

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Bibliographic Details
Main Authors: Peter Petreczky, Hans-Peter Schadler, Sayantan Sharma
Format: Article
Language:English
Published: Elsevier 2016-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316305718