Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Pasztor Attila"'
Autor:
Borsanyi, Szabolcs, Fodor, Zoltan, Guenther, Jana N., Parotto, Paolo, Pasztor, Attila, Pirelli, Ludovica, Szabo, Kalman K., Wong, Chik Him
The QCD cross-over line in the temperature ($T$) -- baryo-chemical potential ($\mu_B$) plane has been computed by several lattice groups by calculating the chiral order parameter and its susceptibility at finite values of $\mu_B$. In this work we foc
Externí odkaz:
http://arxiv.org/abs/2410.06216
Autor:
Borsanyi, Szabolcs, Fodor, Zoltan, Guenther, Jana N., Kara, Ruben, Parotto, Paolo, Pasztor, Attila, Pirelli, Ludovica, Wong, Chik Him
The crossover from hadronic to quark matter is understood to be both a deconfinement as well as a chiral symmetry restoring transition. Here, we study observables related to both aspects using lattice simulations: the Polyakov loop and its derivative
Externí odkaz:
http://arxiv.org/abs/2405.12320
Autor:
Guenther, Jana N., Borsányi, Szabolcs, Fodor, Zoltan, Kara, Ruben, Katz, Sandor D., Parotto, Paolo, Pásztor, Attila, Ratti, Claudia, Szabó, Kalman K.
Publikováno v:
Nucl.Phys.A 982 (2019) 303-306
An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. The phase diagram features a crossover line starting from the transition temperature already dete
Externí odkaz:
http://arxiv.org/abs/2403.16709
Autor:
Borsányi, Szabolcs, Fodor, Zoltán, Guenther, Jana N., Kara, Ruben, Parotto, Paolo, Pásztor, Attila, Wong, Chik Him
The effect of a finite volume presents itself both in heavy ion experiments as well as in recent model calculations. The magnitude is sensitive to the proximity of a nearby critical point. We calculate the finite volume effects at finite temperature
Externí odkaz:
http://arxiv.org/abs/2401.01169
Autor:
Borsányi, Szabolcs, Fodor, Zoltán, Guenther, Jana N., Katz, Sándor D., Parotto, Paolo, Pásztor, Attila, Pesznyák, Dávid, Szabó, Kálmán K., Wong, Chik Him
Fluctuations play a key role in the study of QCD phases. Lattice QCD is a valuable tool to calculate them, but going to high orders is challenging. Up to the fourth order, continuum results are available since 2015. We present the first continuum res
Externí odkaz:
http://arxiv.org/abs/2312.07528
Autor:
Borsanyi Szabolcs, Fodor Zoltan, Giordano Matteo, Guenther Jana N., Kapás Kornél, Katz Sandor K., Szabó Kalman K., Pasztor Attila, Portillo Israel, Ratti Claudia
Publikováno v:
EPJ Web of Conferences, Vol 235, p 02004 (2020)
We discuss the usefulness of various lattice observables especially fluctuations to locate the QCD critical endpoint. We apply different models to interpret our results for the baryon fluctuations up to µ8 from simulations at imaginary chemical pote
Externí odkaz:
https://doaj.org/article/6d9e1f2e8a664a1a83b992180859130c
Autor:
Borsanyi, Szabolcs, Fodor, Zoltan, Giordano, Matteo, Guenther, Jana N., Katz, Sandor D., Pasztor, Attila, Wong, Chik Him
Research on the QCD phase diagram with lattice field theory methods is dominated by the use of rooted staggered fermions, as they are the computationally cheapest discretization available. We show that rooted staggered fermions at a nonzero baryochem
Externí odkaz:
http://arxiv.org/abs/2308.06105
We studied integration contour deformations in the chiral random matrix theory of Stephanov with the goal of alleviating the finite-density sign problem. We considered simple ans\"atze for the deformed integration contours, and optimized their parame
Externí odkaz:
http://arxiv.org/abs/2301.12947
Autor:
Borsanyi, Szabolcs, Fodor, Zoltan, Giordano, Matteo, Guenther, Jana N., Katz, Sandor D., Pasztor, Attila, Wong, Chik Him
The equation of state of the quark gluon plasma is a key ingredient of heavy ion phenomenology. In addition to the traditional Taylor method, several novel approximation schemes have been proposed with the aim of calculating it at finite baryon densi
Externí odkaz:
http://arxiv.org/abs/2208.05398
Autor:
Günther Jana, Bellwied Rene, Borsanyi Szabolcs, Fodor Zoltan, Katz Sandor D., Pasztor Attila, Ratti Claudia
Publikováno v:
EPJ Web of Conferences, Vol 137, p 07008 (2017)
An effcient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. In this talk we present results on several observables for the equation of state to order (μB/T)6
Externí odkaz:
https://doaj.org/article/c49a6cd5fcee4bc98143bbadd84083f0