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Title: Vortical susceptibility of finite-density QCD matter

Here, the susceptibility of finite-density QCD matter to vorticity is introduced, as an analog of magnetic susceptibility. It describes the spin polarization of quarks and antiquarks in finite-density QCD matter induced by rotation. We estimate this quantity in the chirally broken phase using the mixed gauge-gravity anomaly at finite baryon density. It is proposed that the vortical susceptibility of QCD matter is responsible for the polarization of Λ and Λ¯ hyperons observed recently in heavy ion collisions at RHIC by the STAR collaboration.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Institute of Theoretical and Experimental Physics, Moscow (Russia)
  2. Institute of Theoretical and Experimental Physics, Moscow (Russia); Moscow Institute of Physics and Technology, Dolgoprudny (Russia)
  3. Institute of Information Transmission Problems of the Russian Academy of Sciences, Moscow (Russia); Moscow Institute of Physics and Technology, Dolgoprudny (Russia)
  4. Stony Brook Univ., Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-113998-2017-JA
Journal ID: ISSN 1029-8479
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 10; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; finite-density; QCD matter; Spontaneous Symmetry Breaking; Chiral Lagrangians; Phase Diagram of QCD
OSTI Identifier:
1376114