Anomalous-hydrodynamic analysis of charge-dependent elliptic flow in heavy-ion collisions

Autor: Masaru Hongo, Yuji Hirono, Tetsufumi Hirano
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Physics Letters B, Vol 775, Iss , Pp 266-270 (2017)
Druh dokumentu: article
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2017.10.028
Popis: Anomalous hydrodynamics is a low-energy effective theory that captures effects of quantum anomalies. We develop a numerical code of ideal anomalous hydrodynamics and apply it to dynamics of heavy-ion collisions, where anomalous transports are expected to occur. We discuss implications of the simulations for possible experimental observations of anomalous transport effects. From analyses of the charge-dependent elliptic flow parameters (v2±) as a function of the net charge asymmetry A±, we find that the linear dependence of Îv2±â¡v2ââv2+ on the net charge asymmetry A± can come from a mechanism unrelated to anomalous transport effects. Instead, we find that a finite intercept Îv2±(A±=0) can come from anomalous effects. Keywords: Quarkâgluon plasma, Relativistic heavy-ion collisions, Hydrodynamic models, Chiral magnetic effect, Quantum anomaly, Collective flow
Databáze: Directory of Open Access Journals