Open AccessImaginary potential of heavy quarkonia from AdS/QCD
Author(s) -
Zi-qiang Zhang,
Xiangrong Zhu
Publication year - 2019
Publication title -
physics letters b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.093
H-Index - 283
eISSN - 1873-2445
pISSN - 0370-2693
DOI - 10.1016/j.physletb.2019.04.057
Subject(s) - quarkonium , dilaton , quantum chromodynamics , physics , imaginary time , conformal map , particle physics , dissociation (chemistry) , the imaginary , thermal , quantum electrodynamics , mathematical physics , quantum mechanics , thermodynamics , quantum , chemistry , geometry , mathematics , open quantum system , supersymmetric quantum mechanics , psychology , psychotherapist
The imaginary part of a heavy quarkonium potential is studied at finite temperature and chemical potential using a holographic AdS/QCD model with conformal invariance broken by a background dilaton. It is shown that the presence of the confining scale increases the absolute value of the imaginary potential thus increasing the thermal width, reverse to the effect of the chemical potential. One step further, the results imply that the inclusion of the confining scale reduces the quarkonia dissociation while the chemical potential enhances it.
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