Signatures of the vortical quark-gluon plasma in hadron yields

Abstract

We investigate the hadron production from the vortical quark-gluon plasma created in heavy-ion collisions. Based on the quark-coalescence and statistical hadronization models, we show that total hadron yields summed over the spin components are enhanced by the local vorticity with quadratic dependence. The enhancement factor amounts to be a few percent and may be detectable within current experimental sensitivities. We also show that the effect is stronger for hadrons with larger spin, and thus propose a new signature of the local vorticity, which may be detected by the yield ratio of distinct hadron species having different spins such as $\varphi$ and ${\eta }^{\prime }$. The vorticity dependence of hadron yields seems robust, with consistent predictions in both of the hadron production mechanisms for reasonable values of the vorticity strength estimated for heavy-ion collisions.

arXiv comment6 pages, 2 figures; v2: summary and discussions improved, references updated, to be published in PRC

References in corpus (48)

• Global $\Lambda$ hyperon polarization in nuclear collisions: evidence for the most vortical fluid
• Event-by-event generation of electromagnetic fields in heavy-ion collisions
• Globally Polarized Quark-gluon Plasma in Non-central A+A Collisions
• Event-by-event fluctuations of magnetic and electric fields in heavy ion collisions
• Relativistic distribution function for particles with spin at local thermodynamical equilibrium
• Global polarization of $\Lambda$ hyperons in Au+Au collisions at $\sqrt{s_{{}_{NN}}}$ = 200 GeV
• Comments About the Electromagnetic Field in Heavy-Ion Collisions
• Global hyperon polarization at local thermodynamic equilibrium with vorticity, magnetic field and feed-down
• Spin Alignment of Vector Mesons in Non-central A+A Collisions
• Rotating quark-gluon plasma in relativistic heavy ion collisions
• Relativistic fluid dynamics with spin
• Study of Lambda polarization in relativistic nuclear collisions at sqrt{s}_NN = 7.7-200 GeV
• Polarization of $\Lambda$ ($\bar{\Lambda }$) hyperons along the beam direction in Au+Au collisions at $\sqrt{s_{{}_{NN}}}$ = 200 GeV
• Coalescence Models For Hadron Formation From Quark Gluon Plasma
• Collective longitudinal polarization in relativistic heavy-ion collisions at very high energy
• Global $\Lambda$ polarization in heavy-ion collisions from a transport model
• Kinetic theory for massive spin-1/2 particles from the Wigner-function formalism
• Fate of spin polarization in a relativistic fluid: An entropy-current analysis
• Evidence of spin-orbital angular momentum interactions in relativistic heavy-ion collisions
• Probing vorticity structure in heavy-ion collisions by local $\Lambda$ polarization
• Thermal vorticity and spin polarization in heavy-ion collisions
• Global polarization measurement in Au+Au collisions
• Exotic Hadrons from Heavy Ion Collisions
• Novel quantum phenomena induced by strong magnetic fields in heavy-ion collisions
• Particle Production in Heavy Ion Collisions
• Relativistic dissipative spin dynamics in the relaxation time approximation
• Relativistic Quantum Kinetic Theory for Massive Fermions and Spin Effects
• Effects of mechanical rotation on spin currents
• Axial Kinetic Theory and Spin Transport for Fermions with Arbitrary Mass
• Thermodynamic versus kinetic approach to polarization-vorticity coupling
• Covariant statistical mechanics and the stress-energy tensor
• Local spin polarization in high energy heavy ion collisions
• Mass Correction to Chiral Kinetic Equations
• Effective quantum kinetic theory for spin transport of fermions with collsional effects
• Spin polarization evolution in a boost invariant hydrodynamical background
• A quark coalescence model for polarized vector mesons and baryons
• Covariant Spin Kinetic Theory I: Collisionless Limit
• Feed-down effect on $\Lambda$ spin polarization
• Causality and dissipation in relativistic polarizeable fluids
• Quantum Kinetic Theory of Spin Polarization of Massive Quarks in Perturbative QCD: Leading Log
• Polarization transfer in hyperon decays and its effect in relativistic nuclear collisions
• Spin alignment measurements of the $K^{\ast 0}(892)$ and $\varphi (1020)$ vector mesons at RHIC
• Azimuthal angle dependence of the longitudinal spin polarization in relativistic heavy ion collisions
• Centrality Dependence of Bulk Fireball Properties at RHIC
• Side-Jump Induced Spin-Orbit Interaction of Chiral Fluids from Kinetic Theory
• Constructing phase space distributions with internal symmetries
• Holographic Heavy-Ion Collisions: Analytic Solutions with Longitudinal Flow, Elliptic Flow and Vorticity
• Fluid Dynamics Study of the $\Lambda$ Polarization for Au+Au Collisions at $\sqrt{s_{NN}}=200$ GeV

Cited by in corpus (6)

• A hydrodynamic study of hyperon spin polarization in relativistic heavy ion collisions
• Foundations and Applications of Quantum Kinetic Theory
• Vorticity and Spin Polarization in Heavy Ion Collisions: Transport Models
• Holographic drag force in 5d Kerr-AdS black hole
• Quantum kinetic theory for dynamical spin polarization from QED-type interaction
• QCD equation of state with Tsallis statistics for heavy-ion collisions