Názov	The European Physical Journal A
Podnázov	Hadrons and Nuclei
Vyd.údaje	Berlin : Springer , 2021
ISSN	1434-60011434-601X
Form.deskr.	časopisy - journals
Roč., číslo	Vol. 57 no. 4 (2021)
Jazyk dok.	angličtina
Krajina	Nemecko
URL	Link na zdrojový dokument
Kategória publikačnej činnosti	GII
Katal.org.	BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
Báza dát	xpca - PUBLIKAČNÁ ČINNOSŤ
Odkazy	- PERIODIKÁ - Súborný záznam periodika
	(1) - PUBLIKAČNÁ ČINNOSŤ
Odkazy	PERIODIKÁ-Súborný záznam periodika
ČLÁNKY	2021:
	Charge and isospin fluctuations in a non-ideal pion gas with dynamically fixed particle number

Názov	Charge and isospin fluctuations in a non-ideal pion gas with dynamically fixed particle number
Aut.údaje	Evgeni E. Kolomeitsev ... [et al.]
Autor	Kolomeitsev Evgeni E. 1970- (34%) UMBFP06 - Katedra fyziky
Spoluautori	Voskresensky Dmitri (33%) Borisov Maxim E. (33%)
Zdroj.dok.	The European Physical Journal A : Hadrons and Nuclei. Vol. 57, no. 4 (2021), pp. [1-29]. - Berlin : Springer, 2021
Kľúč.slová	Bose-Einsteinova kondenzácia - Bose-Einstein condensation heavy ion collisions
Form.deskr.	články - journal articles
Jazyk dok.	angličtina
Krajina	Nemecko
Kategória publikačnej činnosti	ADC
Číslo archívnej kópie	49947
Katal.org.	BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
Báza dát	xpca - PUBLIKAČNÁ ČINNOSŤ
Odkazy	PERIODIKÁ-Súborný záznam periodika

Názov	Hybrid model with viscous relativistic hydrodynamics: a role of constraints on the shear-stress tensor
Aut.údaje	A. S. Khvorostukhin ... [et al.]
Autor	Khvorostukhin A. S. (34%)
Spoluautori	Kolomeitsev Evgeni E. 1970- (33%) UMBFP06 - Katedra fyziky Toneev V. D. (33%)
Zdroj.dok.	The European Physical Journal A : Hadrons and Nuclei. Vol. 57, no. 10 (2021), pp. 294-1-294-25. - New York : Springer Nature, 2021
Kľúč.slová	relativistic hydrodynamics heavy ion collisions viscosity
Form.deskr.	články - journal articles
Jazyk dok.	angličtina
Krajina	Nemecko
Anotácia	We present the hybrid model connecting the parton–hadron–string dynamic model (PHSD) and a hydrodynamic model taking into account shear viscosity within the Israel–Stewart approach. The numerical scheme, initialization, and particlization procedure are discussed in detail. The performance of the code is tested on the pion and proton rapidity and transverse mass distributions calculated for Au + Au and Pb+Pb collisions at AGS–SPS energies. The influence of the switch time from transport to hydro models, the viscous parameter, and freeze-out time are discussed. Since the applicability of the Israel–Stewart hydrodynamics assumes the perturbative character of the viscous stress tensor, πμν, which should not exceed the ideal energy–momentum tensor, T μν id , hydrodynamical codes usually rescale the shear stress tensor if the inequality πμν T μν id is not fulfilled in some sense. There are several conditions used in the literature and we analyze in detail the influence of different conditions and values of the cut-off parameter on observables.We show that the form of the corresponding condition plays an important role in the sensitivity of hydrodynamic calculations to the viscous parameter – a ratio of the shear viscosity to the entropy density, η/s. It is shown that the constraints used in the vHLLE and MUSIC models give the same results for the observables.With these constraints, the rapidity distributions and transverse momentum spectra are most sensitive to a change of the η/s ratio. We demonstrate that these constraints do not guarantee that each element of the πμν tensor is smaller than the corresponding element T μν id . As an alternative, a strict condition is used. When applied it reduces the sensitivity of the proton and pion momentum distributions to the viscosity parameter. We performed global fits of the rapidity and transverse mass distributions of pion and protons. It was also found that η/s as a function of the collision energy monotonically increases from Elab = 6 AGeV up to Elab = 40 AGeV and saturates for higher SPS energies. We observe that it is difficult to reproduce simultaneously pion and proton rapidity distribution within our model with the present choice of the equation of state without a phase transition.
URL	Link na plný text
Kategória publikačnej činnosti	ADC
Číslo archívnej kópie	50708
Katal.org.	BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
Báza dát	xpca - PUBLIKAČNÁ ČINNOSŤ
Odkazy	PERIODIKÁ-Súborný záznam periodika

Názov	Higher-order anisotropies in the blast-wave model: Disentangling flow and density field anisotropies
Aut.údaje	Jakub Cimerman ... [et al.]
Autor	Cimerman Jakub 1994- (45%)
Spoluautori	Tomášik Boris 1972- (45%) UMBFP06 - Katedra fyziky Csanád Máté (5%) Lökös Sándor (5%)
Zdroj.dok.	The European Physical Journal A : Hadrons and Nuclei. Vol. 53, no. 8 (2017), pp. [1-13]. - Berlin : Springer, 2017
Kľúč.slová	ultrarelativistic heavy ion collisions femtoscopy anisotropic flow
Jazyk dok.	angličtina
Krajina	Spojené štáty
Systematika	53
Anotácia	We formulate a generalisation of the blast-wave model which is suitable for the description of higher-order azimuthal anisotropies of the hadron production. The model includes anisotropy in the density profile as well as an anisotropy in the transverse expansion velocity field. We then study how these two kinds of anisotropies influence the single-particle distributions and the correlation radii of two-particle correlation functions. Particularly we focus on the third-order anisotropy and consideration is given averaging over different orientations of the event plane.
Kategória publikačnej činnosti	ADC
Číslo archívnej kópie	41756
Katal.org.	BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
Báza dát	xpca - PUBLIKAČNÁ ČINNOSŤ
Odkazy	PERIODIKÁ-Súborný záznam periodika

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