A quark coalescence model for polarized vector mesons and baryons

Abstract

A non-relativistic quark coalescence model is formulated for polarized vector mesons and baryons of spin-1/2 octet and spin-3/2 decuplet. With the spin density matrix, one can compute in a uniform way the polarizations of vector mesons and baryons from those of quarks and antiquarks with explicit momentum dependence. The results are compared to that obtained from kinetic and statistical models for hadrons.

Revtex 4, 17 pages, no figure; Appendix B and C have been removed, a new Appendix C is added; The discussions about the comparison between the coalescence model and the hadron statistical model have been expanded. To appear in PRC

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• The chiral vortical effect in Wigner function approach
• $\Lambda /\bar{\Lambda }$ Polarization and Splitting Induced by Rotation and Magnetic Field
• Chiral Magnetic Effect in Heavy Ion Collisions: The Present and Future
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• Global spin polarization of multistrange hyperons and feed-down effect in heavy-ion collisions
• Dynamics of QCD Matter -- current status
• Vector meson's spin alignments in high energy reactions
• Kinetic theory with spin: From massive to massless fermions
• Spin polarization and correlation of quarks from glasma
• Measurement of global spin alignment of $K^{\ast 0}$and $\varphi$ vector mesons using the STAR detector at RHIC
• Spin alignment measurement of vector mesons produced in high energy collisions
• Impact of globally spin-aligned vector mesons on the search for the chiral magnetic effect in heavy-ion collisions
• Spin alignment of vector mesons from quark dynamics in a rotating medium
• The effect of hadronic scatterings on the measurement of vector meson spin alignments in heavy-ion collisions
• Collisional corrections to spin polarization from quantum kinetic theory using Chapman-Enskog expansion
• Rescattering effect on the measurement of K* spin alignment in heavy-ion collisions
• Transverse and longitudinal spin alignment from color fields in heavy ion collisions
• The spin alignment of vector mesons with light front quarks
• First measurement of prompt and non-prompt ${\mathrm{D}}^{\ast +}$ vector meson spin alignment in pp collisions at $\sqrt{s}=13$ TeV
• Signatures of the vortical quark-gluon plasma in hadron yields
• Recent developments in chiral and spin polarization effects in heavy-ion collisions
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• Exploring Spin Polarization of Heavy Quarks in Magnetic Fields and Hot Medium
• Chiral phase transition and spin alignment of vector mesons with chiral imbalance in a rotating QCD medium
• Spin-Vorticity Coupling for Massive Vector Mesons
• First measurement of D${}^{\ast +}$ vector spin alignment in Pb$-$Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.02$ TeV
• Spin alignment of quarkonia in vortical quark-gluon plasma
• Impact of strong magnetic field, baryon chemical potential, and medium anisotropy on polarization and spin alignment of hadrons
• Proca equation and vector field quantization in rotating system
• Sphaleron Transition Rates and the Chiral Magnetic Effect
• Production of $K^{+}{K}^{-}$ Pairs Through Decay of $\varphi$ Meson
• Helicity polarization in relativistic heavy ion collisions
• Production of Strange and Charm Hadrons in Pb+Pb Collisions at $\sqrt{s_{NN}}=$ 5.02 TeV
• Practical Considerations for Measuring Global Spin Density Matrix Elements of Vector Mesons in Heavy-Ion Collisions
• Improved quark coalescence model for spin alignments of vector mesons
• Quark polarization from parton scatterings in heavy ion collisions