Bottomonium dissociation in a rotating plasma

Braga, Nelson R. F.; Ferreira, Yan F.

doi:10.1103/physrevd.108.094017

Phys. Rev. D

2023

DOI: 10.1103/physrevd.108.094017

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Bottomonium dissociation in a rotating plasma

Nelson R. F. Braga,

Yan F. Ferreira

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2024

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Cited by 4 publications

References 42 publications

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Holographic spin alignment of J/ψ meson in magnetized plasma

Zhao,

Sheng,

et al. 2024

J. High Energ. Phys.

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We study the mass spectra and spin alignment of vector meson J/ψ in a thermal magnetized background using a generalized theoretical framework based on gauge/gravity duality. Utilizing a soft wall model for the QGP background and a massive vector field for the J/ψ meson, we delve into the meson’s spectral function and spin parameters (λθ, λφ, λθφ) for different cases, assessing their response to variations in magnetic field strength, momentum, and temperature. We initially examine scenarios where a meson’s momentum aligns parallel to the magnetic field in helicity frame. Our results reveal a magnetic field-induced positive $$ {\lambda}_{\theta}^{\textrm{H}} $$ λ θ H for low meson momentum, transitioning to negative with increased momentum. As a comparison, we also study the case of momentum perpendicular to the magnetic field and find the direction of magnetic field does not affect the qualitative behavior for the eB-dependence of $$ {\lambda}_{\theta}^{\textrm{H}} $$ λ θ H . Moreover, we apply our model to real heavy-ion collisions for three different spin quantization directions. Further comparisons with experimental data show qualitative agreement for spin parameters λθ and λφ in the helicity and Collins-Soper frames.

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Holographic spin alignment of J/ψ meson in magnetized plasma

Zhao,

Sheng,

et al. 2024

J. High Energ. Phys.

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Evidence that the rate of evolution of a black hole interior has a holographic dual

McInnes

2024

Nuclear Physics B

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Rotation effect on the spectral function of heavy vector mesons in holographic QCD

Wang,

Feng

2024

Phys. Rev. D

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Exploring heavy vector mesons of the J/ψ and ϒ(1S) is crucial for understanding the quark gluon plasma (QGP) formed in heavy ion collisions. The influences of rotational effect on the properties of the J/ψ and the ϒ(1S) are investigated by incorporating rotation medium into the holographic QCD. It is found that temperature, chemical potential, and rotational radius effects enhance the dissociation process of the J/ψ and the ϒ(1S) states within the medium. This rotation-induced effect is more significant for heavy vector mesons in the transverse direction than that of the longitudinal direction. The first holographic study on the influence of the radius of a homogeneous rotating system on the vector meson spectrum is proposed. It is found that increasing in rotation radius promotes the dissociation of vector mesons of the J/ψ and ϒ(1S). We also find that the dissociation perpendicular to the direction of rotational angular velocity is more significant than that parallel to it at large rational radius. Published by the American Physical Society 2024

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Bottomonium dissociation in a rotating plasma

Cited by 4 publications

References 42 publications

Holographic spin alignment of J/ψ meson in magnetized plasma

Holographic spin alignment of J/ψ meson in magnetized plasma

Evidence that the rate of evolution of a black hole interior has a holographic dual

Rotation effect on the spectral function of heavy vector mesons in holographic QCD

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