Journal article
Curvature of the pseudocritical line in the QCD phase diagram from mesonic lattice correlation functions
Antonio Smecca 
,
Gert Aarts ,
Chris Allton ,
Ryan Bignell ,
Benjamin Jäger ,
Seung-il Nam ,
Seyong Kim ,
Jon-Ivar Skullerud ,
Liang-Kai Wu
,
Gert Aarts ,
Chris Allton ,
Ryan Bignell ,
Benjamin Jäger ,
Seung-il Nam ,
Seyong Kim ,
Jon-Ivar Skullerud ,
Liang-Kai Wu
Physical Review D, Volume: 112, Issue: 11
Swansea University Authors:
Gert Aarts , Chris Allton , Ryan Bignell
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1103/wjm8-4smh
Abstract
In the QCD phase diagram, the dependence of the pseudo-critical temperature, T_pc, on the baryon chemical potential, mu_B, is of fundamental interest. The variation of T_pc with mu_B is normally captured by kappa, the coefficient of the leading (quadratic) term of the polynomial expansion of T_pc wi...
| Published in: | Physical Review D |
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| ISSN: | 2470-0010 2470-0029 |
| Published: |
American Physical Society (APS)
2025
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa71412 |
| Abstract: |
In the QCD phase diagram, the dependence of the pseudo-critical temperature, T_pc, on the baryon chemical potential, mu_B, is of fundamental interest. The variation of T_pc with mu_B is normally captured by kappa, the coefficient of the leading (quadratic) term of the polynomial expansion of T_pc with mu_B. In this work, we present the first calculation of kappa using hadronic quantities. Simulating N_f=2+1 flavours of Wilson fermions on Fastsum ensembles, we calculate the O(mu_B^2) correction to mesonic correlation functions. By demanding degeneracy in the vector and axial-vector channels we obtain T_pc(mu_B) and hence kappa. While lacking a continuum extrapolation and being away from the physical point, our results are consistent with previous works using thermodynamic observables (renormalised chiral condensate, strange quark number susceptibility) from lattice QCD simulations with staggered fermions. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
11 |