General balance functions of identified charged hadron pairs of (π,K,p) in Pb-Pb collisions at √s.sub.NN./sub.=2.76 TeV

Acharya, S.; Adamová, Dagmar; Adler, A.; Adolfsson, J.; Bielčík, J.; Bielčíková, Jana; Broz, M.; Contreras, J. G.; Herman, T.; Horák, D.; Isakov, Artem; Kotliarov, Artem; Křížek, Filip; Křížková Gajdošová, K.; Kushpil, Svetlana; Lavička, R.; Petráček, V.; Šafařík, K.; Torres, S. R.; Závada, Petr

doi:https://dx.doi.org/10.1016/j.physletb.2022.137338

Počet záznamů: 1

General balance functions of identified charged hadron pairs of (π,K,p) in Pb-Pb collisions at √s.sub.NN./sub.=2.76 TeV

1.

SYSNO ASEP	0562831
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	General balance functions of identified charged hadron pairs of (π,K,p) in Pb-Pb collisions at √s_NN=2.76 TeV
Tvůrce(i)	Acharya, S. (IN) Adamová, Dagmar (UJF-V)_{RID, ORCID, SAI} Adler, A. (DE) Adolfsson, J. (SE) Bielčík, J. (CZ) Bielčíková, Jana (UJF-V)_{RID, ORCID, SAI} Broz, M. (CZ) Contreras, J. G. (CZ) Herman, T. (CZ) Horák, D. (CZ) Isakov, Artem (UJF-V)_{ORCID, SAI} Kotliarov, Artem (UJF-V)_{ORCID, SAI} Křížek, Filip (UJF-V)_{RID, ORCID, SAI} Křížková Gajdošová, K. (CZ) Kushpil, Svetlana (UJF-V)_{RID, ORCID, SAI} Lavička, R. (CZ) Petráček, V. (CZ) Šafařík, K. (CZ) Torres, S. R. (CZ) Závada, Petr (FZU-D)_{RID, ORCID}
Celkový počet autorů	1004
Číslo článku	137338
Zdroj.dok.	Physics Letters. B. - : Elsevier - ISSN 0370-2693 Roč. 833, OCT (2022)
Poč.str.	13 s.
Forma vydání	Tištěná - P
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	ALICE collaboration ; heavy ion collisions
Obor OECD	Nuclear physics
CEP	LTT17018 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Výzkumná infrastruktura	CERN-CZ II - 90104 - Fyzikální ústav AV ČR, v. v. i.
Způsob publikování	Open access
Institucionální podpora	FZU-D - RVO:68378271 ; UJF-V - RVO:61389005
UT WOS	000865640700011
EID SCOPUS	85136125599
DOI	10.1016/j.physletb.2022.137338
Anotace	First measurements of balance functions (BFs) of all combinations of identified charged hadron (pi, K, p) pairs in Pb-Pb collisions at root s(NN) = 2.76 TeV recorded by the ALICE detector are presented. The BF measurements are carried out as two-dimensional differential correlators versus the relative rapidity (Delta y) and azimuthal angle (Delta phi) of hadron pairs, and studied as a function of collision centrality. The Delta phi dependence of BFs is expected to be sensitive to the light quark diffusivity in the quark-gluon plasma. While the BF azimuthal widths of all pairs substantially decrease from peripheral to central collisions, the longitudinal widths exhibit mixed behaviors: BFs of pi pi and cross-species pairs narrow significantly in more central collisions, whereas those of KK and pp are found to be independent of collision centrality. This dichotomy is qualitatively consistent with the presence of strong radial flow effects and the existence of two stages of quark production in relativistic heavy-ion collisions. Finally, the first measurements of the collision centrality evolution of BF integrals are presented, with the observation that charge balancing fractions are nearly independent of collision centrality in Pb-Pb collisions. Overall, the results presented provide new and challenging constraints for theoretical models of hadron production and transport in relativistic heavy-ion collisions.
Pracoviště	Ústav jaderné fyziky
Kontakt	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Rok sběru	2023
Elektronická adresa	https://doi.org/10.1016/j.physletb.2022.137338

Počet záznamů: 1