Počet záznamů: 1
Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb-Pb collisions at root s(NN)=2.76 TeV
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SYSNO ASEP 0488723 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb-Pb collisions at root s(NN)=2.76 TeV Tvůrce(i) Acharya, S. (IN)
Adamová, Dagmar (UJF-V) RID, ORCID, SAI
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Broz, M. (CZ)
Contreras, J. G. (CZ)
Hladký, Jan (FZU-D) RID, ORCID, SAI
Horák, D. (CZ)
Křížek, Filip (UJF-V) RID, ORCID, SAI
Kučera, Vít (UJF-V) RID
Kushpil, Svetlana (UJF-V) RID, ORCID, SAI
Lavička, R. (CZ)
Mareš, Jiří A. (FZU-D) RID, ORCID
Petráček, V. (CZ)
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Vaňát, Tomáš (UJF-V) ORCID, SAI
Závada, Petr (FZU-D) RID, ORCIDCelkový počet autorů 1031 Zdroj.dok. Physics Letters. B. - : Elsevier - ISSN 0370-2693
Roč. 777, č. 2 (2018), s. 151-162Poč.str. 12 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova ALICE ; heavy ion collisions ; relativistic nuclear collisions Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače Obor OECD Nuclear physics Vědní obor RIV – spolupráce Fyzikální ústav - Elementární částice a fyzika vys. energií CEP LG15052 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UJF-V - RVO:61389005 ; FZU-D - RVO:68378271 UT WOS 000423930700017 EID SCOPUS 85040798759 DOI 10.1016/j.physletb.2017.12.021 Anotace In ultrarelativistic heavy-ion collisions, the event-by-event variation of the elliptic flow v(2) reflects fluctuations in the shape of the initial state of the system. This allows to select events with the same centrality but different initial geometry. This selection technique, Event Shape Engineering, has been used in the analysis of charge-dependent two-and three-particle correlations in Pb-Pb collisions at root s(NN) = 2.76 TeV. The two-particle correlator < cos(phi(alpha) - phi(ss))>, calculated for different combinations of charges alpha and beta, is almost independent of v(2) (for a given centrality), while the three-particle correlator < cos(phi(alpha) + phi(beta) - 2 Psi(2))> scales almost linearly both with the event v(2) and charged-particle pseudorapidity density. The charge dependence of the three-particle correlator is often interpreted as evidence for the Chiral Magnetic Effect (CME), a parity violating effect of the strong interaction. However, its measured dependence on v(2) points to a large non-CME contribution to the correlator. Comparing the results with Monte Carlo calculations including a magnetic field due to the spectators, the upper limit of the CME signal contribution to the three-particle correlator in the 10-50% centrality interval is found to be 26-33% at 95% confidence level. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2019
Počet záznamů: 1