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Published September 2021 | Version v1
Journal article

Magneto-rotational dissociation of heavy hadrons in relativistic heavy-ion collisions

  • 1. Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011 (United States)

Description

A heavy hadron traversing Quark-Gluon Plasma and dragged along in rotational motion is subject to the Lorentz and centrifugal forces. The Lorentz force, sourced by the valence quarks of heavy-ions, possesses the electric and magnetic components in the hadron comoving frame. The electric component renders the hadron unstable by empowering one of its quarks to tunnel through the potential barrier. Assuming that the magnetic field is parallel to the plasma vorticity, the hadron dissociation probability is computed using the Imaginary Time Method and is found to strongly depend on the sign of the quark electric charge. The dissociation probability monotonically increases as a function of vorticity for negative electric charges, whereas for positive charges it exhibits a minimum at a finite value of vorticity. The dissociation probability for the negative charges is larger than for the positive ones at the same magnetic field and vorticity. In relativistic heavy-ion collisions this implies lower abundance of the negatively charged hadrons as compared to the positively charges ones. This effect is significant at moderate collision energies where the plasma vorticity is comparable or larger than the synchrotron frequency.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2021.136582

Additional details

Identifiers

DOI
10.1016/j.physletb.2021.136582;
PII
S0370269321005220;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
820
Journal Page Range
vp.
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2021 The Author(s). Published by Elsevier B.V.