Effect of in-medium spectral density of D and mesons on the dissociation in hadronic matter

Ghosh, Sabyasachi; Mitra, Sukanya; Sarkar, Sourav

doi:10.1016/j.nuclphysa.2013.08.010

Cited by 6 publications

(4 citation statements)

References 60 publications

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“…We focus on the s-wave interactions of the heavy-mesons with the surrounding mesons, which give the most relevant contributions to the self-energy of these mesons at rest. A field-theoretical approach studying the one-loop p-wave self-energy of the D and D * mesons in a hot hadronic medium can be found in [21]. However, these contributions will not be considered in this work, as we are focussion on the properties of these mesons at rest.…”

Section: Introductionmentioning

confidence: 99%

Properties of open and hidden charm mesons in light quark matter

2017

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In this work we study the implications of light-quark pionic matter at finite temperatures on the properties of open and hidden charm mesons. The meson-meson interactions are described by means of a chiral unitary approach accounting for coupled channels effects. The in-medium Lippmann-Schwinger Equations, which consider the change in self-energy that the mesons acquire from interacting with the surrounding pionic matter, are solved self-consistently, and the spectral functions of the mesons in the hot pion bath are obtained. It is observed that the charmed mesons develop a quite substantial pion-induced width, being of several tens of MeV at a temperature of 150 MeV. The J/ψ meson stays narrow, but its pionic width at 150 MeV, found to be around 0.1 MeV, is already larger that its vacuum width.

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Section: Introductionmentioning

confidence: 99%

Properties of open and hidden charm mesons in light quark matter

2017

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“…[44][45][46][47][48][49][50][51] at finite baryon density and Refs. [52][53][54][55] at finite temperature. Such effects may be interpreted as collisions which can create both the high-density baryonic matter and charmed hadrons, such as FAIR, NICA, and J-PARC.…”

Section: Introductionmentioning

confidence: 99%

D mesons as a probe of Casimir effect for chiral symmetry breaking

et al. 2019

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We propose D mesons as probes to investigate finite-volume effects for chiral symmetry breaking at zero and finite temperatures. By using the 2 + 1-flavor linear sigma model with constituent light quarks, we analyze the Casimir effects for the σ mean fields; the chiral symmetry is rapidly restored by the antiperiodic boundary for light quarks, and the chiral symmetry breaking is catalyzed by the periodic boundary. We also show the phase diagram of the σ mean fields on the volume and temperature plane. For D mesons, we employ an effective model based on the chiral-partner structure, in which the volume dependence of D mesons is induced by the σ mean fields. We find that Ds mesons are less sensitive to finite volume than D mesons, which is caused by the insensitivity of σs mean fields. An anomalous mass shift of D mesons at high temperature with the periodic boundary will be useful in examinations with lattice QCD simulations. The dependence on the number of compactified spatial dimensions is also studied.

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“…However, other mechanisms such as the J/ψ absorption by comoving hadrons have also been proposed as an alternative mechanism to explain the suppression [5], indicating that the inelastic scattering rates of J/ψ in the hadronic phase is significant [6,7,8]. In addition, the opening of J/ψ → DD decay in the medium due to in-medium modification of D mesons [9,10] may also play a significant role in J/ψ suppression in a hadronic environment.…”

Section: Introductionmentioning

confidence: 99%

Diffusion of hidden charm mesons in hadronic medium

et al. 2016

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The drag and diffusion coefficients of a hot hadronic medium have been evaluated by using hidden charm mesons as probes. The scattering amplitudes required for the evaluation of these coefficients are calculated using an effective theory and scattering lengths obtained from lattice QCD calculations. It is found that although the magnitude of the transport coefficients are small their temperature variation is strong. The insignificant momentum diffusion of J/ψ in the hadronic medium keeps their momentum distribution largely unaltered. Therefore, the task of characterization of quark gluon plasma by using the observed suppression of J/ψ at high momentum will be comparatively easier.

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Effect of in-medium spectral density of D and mesons on the dissociation in hadronic matter

Cited by 6 publications

References 60 publications

Properties of open and hidden charm mesons in light quark matter

Properties of open and hidden charm mesons in light quark matter

D mesons as a probe of Casimir effect for chiral symmetry breaking

Diffusion of hidden charm mesons in hadronic medium

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