New approach to lattice QCD at finite density; results for the critical end point on coarse lattices

Autor: Matteo Giordano, Kornel Kapas, Sandor D. Katz, Daniel Nogradi, Attila Pasztor

Publikováno v: Journal of High Energy Physics, Vol 2020, Iss 5, Pp 1-15 (2020)

Abstract All approaches currently used to study finite baryon density lattice QCD suffer from uncontrolled systematic uncertainties in addition to the well-known sign problem. We formulate and test an algorithm, sign reweighting, that works directly

Externí odkaz: https://doaj.org/article/825df02d6c00426b9d39ebc2cd7725ad

Repulsive baryonic interactions and lattice QCD observables at imaginary chemical potential

Autor: Volodymyr Vovchenko, Attila Pásztor, Zoltán Fodor, Sandor D. Katz, Horst Stoecker

Publikováno v: Physics Letters B, Vol 775, Iss , Pp 71-78 (2017)

The first principle lattice QCD methods allow to calculate the thermodynamic observables at finite temperature and imaginary chemical potential. These can be compared to the predictions of various phenomenological models. We argue that Fourier coeffi

Externí odkaz: https://doaj.org/article/4c1d8405873c477983c61108dc260937

New approach to lattice QCD at finite density: reweighting without an overlap problem

Autor: Attila Pasztor, Szabolcs Borsanyi, Zoltan Fodor, Matteo Giordano, Daniel Nogradi, Sandor D. Katz, Chik Him Wong

Publikováno v: Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0168189387b58242ec8256d28a879739
https://doi.org/10.22323/1.396.0128

Equation of state of QCD at finite chemical potential from an alternative expansion scheme

Autor: Paolo Parotto, Szabolcs Borsanyi, Zoltan Fodor, Jana Guenther, Ruben Kara, Sandor D. Katz, Attila Pasztor, Claudia Ratti, Kalman Szabo

Publikováno v: Sissa Medialab Trieste, Italy 396, 8 pages (2022). doi:10.22323/1.396.0460
Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021)-Sissa Medialab Trieste, Italy, 2022.-ISBN-doi:10.22323/1.396.0460
Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021)-Sissa Medialab Trieste, Italy, 2022.-ISBN-doi:10.22323/1.396.0460The 38th International Symposium on Lattice Field Theory, LATTICE2021, Zoom/Gather@Massachusetts Institute of Technology, USA, 2021-07-26-2021-07-30

The equation of state of Quantum Chromodynamics (QCD) at finite density is currently known only in a limited range in the baryon chemical potential $\mu_B$. This is due to fundamental shortcomings of traditional methods such as Taylor expansion aroun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24a17be10058556d5081af32aab33f95
http://arxiv.org/abs/2112.00083

Corrections to the hadron resonance gas from lattice QCD and their effect on fluctuation-ratios at finite density

Autor: Jana N. Guenther, Szabolcs Borsanyi, Sandor D. Katz, Attila Pásztor, Paolo Parotto, Zoltan Fodor, David Pesznyak, Kalman K. Szabo, Claudia Ratti, Rene Bellwied

Publikováno v: Phys.Rev.D
Phys.Rev.D, 2021, 104 (9), pp.094508. ⟨10.1103/PhysRevD.104.094508⟩
Physical Review
Physical review / D 104(9), 094508 (2021). doi:10.1103/PhysRevD.104.094508

The hadron resonance gas (HRG) model is often believed to correctly describe the confined phase of QCD. This assumption is the basis of many phenomenological works on QCD thermodynamics and of the analysis of hadron yields in relativistic heavy ion c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecc232315cead87f2b8137f13d7fc4e6
http://arxiv.org/abs/2102.06625