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SUMMARY:Axial anomaly and energy dependence of hyperon polarization in Hea
 vy-Ion Collisions
DTSTART;VALUE=DATE-TIME:20161013T140500Z
DTEND;VALUE=DATE-TIME:20161013T142500Z
DTSTAMP;VALUE=DATE-TIME:20260713T092905Z
UID:indico-contribution-656@cern.ch
DESCRIPTION:Speakers: Alexander Sorin (Joint Institute for Nuclear Researc
 h)\nWe address the issue of energy and charge dependence of global polariz
 ation of $\\Lambda$ hyperons in peripheral Au−Au collisions recently obs
 erved by the BES STAR collaboration at RHIC. We compare different contribu
 tions to the anomalous mechanism relating polarization to vorticity and hy
 drodynamic helicity in QCD matter. We stress that the suppression of the g
 ravitational anomaly contribution in strongly correlated matter observed i
 n lattice simulations confirms our earlier prediction of rapid decrease of
  polarization with increasing collision energy. Our mechanism leads to pol
 arization of anti-$\\Lambda$ of the same sign and larger magnitude than th
 e polarization of $\\Lambda$. Polarization calculated in the kinetic QGSM 
 model has a maximum at the NICA and FAIR energy range. The energy and char
 ge dependence of polarization is suggested as a sensitive probe of fine de
 tails of QCD matter structure.\n\nhttps://indico.particle.mephi.ru/event/4
 /contributions/656/
LOCATION:Milan Hotel Vivaldi-Boccerini
URL:https://indico.particle.mephi.ru/event/4/contributions/656/
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