Hadronic form factors and the $J/\psi$ secondary production cross section: an update

Abstract

Improving previous calculations, we compute the $D+\bar{D}\to J/\psi +\pi$ cross section using the most complete effective lagrangians available. The new crucial ingredients are the form factors on the charm meson vertices, which are determined from QCD sum rules calculations. Some of them became available only very recently and the last one, needed for our present purpose, is calculated in this work.

12 pages, 9 eps figures

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Cited by in corpus (26)

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• Decay widths of the spin-2 partners of the X(3872)
• ρD^*D^* vertex from QCD sum rules
• $D^{\ast }D\rho$ vertex from QCD sum rules
• Multiplicity of the doubly charmed state $T_{cc}^{+}$ in heavy-ion collisions
• $B_s^{\ast }BK$ vertex from QCD sum rules
• Strong coupling constants of bottom and charmed mesons with scalar, pseudoscalar and axial vector kaons
• The B_{s0} meson and the B_{s0}B K coupling from QCD sum rules
• Interactions of the doubly charmed state $T_{cc}^{+}$ with a hadronic medium
• J/psi absorption by nucleons in the meson-exchange model
• $J/\psi$ regeneration in a hadron gas: an update
• Understanding the $K^{\ast }/K$ ratio in heavy ion collisions
• $g_{D_s^{\ast }D{K}^{\ast }(892)}$ and $g_{B_s^{\ast }B{K}^{\ast }(892)}$ coupling constants in QCD sum rules
• $B^{\ast }{B}^{\ast }\rho$ vertex from QCD sum rules
• ${\rm Y}$ suppression in a hadron gas
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• $B_{s1}^{\ast }{B}^{\ast }K$ form factor from QCD sum rules
• Charm meson couplings in hard-wall Holographic QCD
• The $D^{\ast }/D$ ratio in heavy ion collisions
• Analysis of $D_s^{\ast }{D}^{\ast }{K}^{\ast }$ and $D_{s1}{D}_1{K}^{\ast }$ vertices in three-point sum rules
• Interaction of exotic states in a hadronic medium: the $Z_c(3900)$ case
• Impact of unitarization on the $J/\psi$-light meson cross section
• Strong coupling constant of vector bottomonium to the pseudoscalar and vector $B_c$ mesons via QCD sum rules
• Quarkonium interactions with (hot) hadronic matter
• Strong coupling constants of charmed and bottom mesons with light vector mesons in QCD sum rules
• Hadronic $J/\psi$ Regeneration in Pb+Pb Collisions