Charmonium decay widths in magnetized matter

Abstract

We study the partial decay widths of the charmonium states ($J/\psi$, $\psi (3686)$, $\psi (3770)$, ${\chi }_{c0}$, ${\chi }_{c2}$) to $D\bar{D}$ ($D^{+}{D}^{-}$ or $D^0\overline{D^0}$) in isospin asymmetric nuclear matter, in the presence of strong magnetic fields. The in-medium partial decay widths of charmonium states to $D\bar{D}$ are calculated within a light quark--antiquark pair creation model, namely the ${}^3{P}_0$ model, using the in--medium masses of the charmonia as well as $D$ and $\bar{D}$ mesons in the magnetized nuclear matter obtained within a chiral effective model. The presence of a magnetic field leads to Landau quantization of the energy levels of the proton in the nuclear medium. The effects of magnetic field and isospin asymmetry on the charmonium decay widths to $D\bar{D}$ are found to be quite prominent. The effects of the anomalous magnetic moments have also been taken into consideration for obtaining the in-medium masses of these heavy flavour mesons, used to calculate the partial decay widths of the charmonium states. The medium modifications of the charmonium decay widths can have observable consequences on the production of the charmed mesons in high energy asymmetric heavy ion collision experiments.

29 pages, 8 figures, to be published in Eur. Phys. Jour. A. arXiv admin note: text overlap with arXiv:1803.04322, arXiv:1901.06259, arXiv:1807.07572, arXiv:1811.04622, arXiv:1801.06405

References in corpus (23)

• The Chiral Magnetic Effect
• D Mesons in Nuclear Matter: A DN Coupled-Channel Equations Approach
• Synchrotron radiation by fast fermions in heavy-ion collisions
• Potential model calculations and predictions for heavy quarkonium
• Open charm in nuclear matter at finite temperature
• QCD sum rules for D and B mesons in nuclear matter
• Photon decay in strong magnetic field in heavy-ion collisions
• Mass Shift and Width Broadening of J/psi in hot gluonic plasma from QCD Sum Rules
• Charmonium Spectroscopy in Strong Magnetic Fields by QCD Sum Rules: S-Wave Ground States
• Critical behavior of charmonia across the phase transition: A QCD sum rule approach
• J/Psi mass shift in nuclear matter
• QCD sum rules for magnetically induced mixing between ${\eta }_c$ and $J/\psi$
• D-mesons in asymmetric nuclear matter
• $J/\psi$ and ${\eta }_c$ masses in isospin asymmetric hot nuclear matter - a QCD sum rule approach
• Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• Kaons and antikaons in asymmetric nuclear matter
• Charm and hidden charm scalar mesons in the nuclear medium
• Bottomonium states in hot asymmetric strange hadronic matter
• Light vector meson masses in strange hadronic matter -- a QCD sum rule approach
• Properties of $J/\psi$ at $T_c$: QCD second-order Stark effect
• Bottom-strange mesons in hyperonic matter
• In-medium properties of pseudoscalar $D_s$ and $B_s$ mesons

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• Analysis of pseudoscalar and scalar $D$ mesons and charmonium decay width in hot magnetized asymmetric nuclear matter
• Mass spectra of neutral mesons $K_0,{\pi }_0,\eta ,{\eta }^{\prime }$ at finite magnetic field, temperature and baryon chemical potential
• HQ Collisional energy loss in a magnetized medium
• QCD sum rule analysis of Heavy Quarkonium states in magnetized matter -- effects of (inverse) magnetic catalysis
• Dirac sea effects on Heavy Quarkonia decay widths in magnetized matter -- a field theoretic model of composite hadrons
• Fast Heating Dissociation of Upsilon(1S) in Heavy Ion Collisions at RHIC