Probing gluon dynamics by charm and bottom mesons in nuclear medium from heavy meson effective theory with 1/M-corrections

Abstract

We consider heavy mesons with charm and bottom in nuclear medium. We construct the effective Lagrangian with axial-vector coupling including 1/M-corrections for the heavy meson mass $M$ by following the velocity-rearrangement invariance. As an application, we consider heavy mesons, $\bar{\mathrm{D}}$ and ${\bar{\mathrm{D}}}^{\ast }$ mesons for charm and $\mathrm{B}$ and ${\mathrm{B}}^{\ast }$ mesons for bottom, bound in nuclear matter, and we discuss their in-medium masses modified by the interaction with nucleons via pion exchanges including the 1/M-corrections. The mass modifications are affected by the gluon dynamics in nuclear medium. By comparison with the heavy quark effective theory, we find that the effects of scale anomaly become suppressed in nuclear medium. We also find that the contributions from the chromoelectric gluon are enhanced in nuclear medium, while those from the chromomagnetic gluon are reduced. We propose to use heavy mesons as probes to research the gluon fields in nuclear medium in experimental studies.

30 pages, 3 figures

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• Observation of excited Lambda_b0 baryons
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Cited by in corpus (19)

• A review of the open charm and open bottom systems
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Heavy Hadrons in Nuclear Matter
• QCD sum rule calculation for P-wave bottom baryons
• Structure of charmed baryons studied by pionic decays
• Heavy quark symmetry in multi-hadron systems
• Kondo effect in charm/bottom nuclei
• Open bottom mesons in hot asymmetric hadronic medium
• Open bottom mesons in asymmetric nuclear matter in presence of strong magnetic fields
• Charmonium states in strong magnetic fields
• Kondo effect of ${\bar{D}}_s$ and ${\bar{D}}_s^{\ast }$ mesons in nuclear matter
• Bottom-strange mesons in hyperonic matter
• Charmonium decay widths in magnetized matter
• Wilson coefficients and four-quark condensates in QCD sum rules for medium modifications of $D$ mesons
• Spin-isospin Kondo effects for ${\Sigma }_c$ and ${\Sigma }_c^{\ast }$ baryons and $\bar{D}$ and ${\bar{D}}^{\ast }$ mesons
• $D$ and $D^{\ast }$ meson mixing in spin-isospin correlated cold nuclear matter
• Open bottom mesons in magnetized matter -- effects of (inverse) magnetic catalysis
• Selected Issues in Thermal Field Theory
• Mesic nuclei with a heavy antiquark