Properties of open and hidden charm mesons in light quark matter

Cleven, Martin; Magas, V. K.; Ramos, À.

doi:10.1103/physrevc.96.045201

Cited by 25 publications

(56 citation statements)

References 37 publications

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“…2, namely n = 3 for the charmed meson case and n = 4 for J/ψ (see Ref. [3] for more details on iterations). In the case of the charmed mesons we see a slow rise in the single MeV region for temperatures below 100 MeV and a sharper rise beyond that up to around 70 − 90 MeV for temperatures approaching 200 MeV.…”

Section: Resultsmentioning

confidence: 99%

“…For a detailed discussion of the amplitudes we refer to Ref. [3]. At this point we only state the most striking feature in the hidden-charm sector.…”

Section: Theoretical Frameworkmentioning

confidence: 99%

“…For brevity we will focus on the main results and refer to Ref. [3] and references therein for more details. The modifications will be two-fold.…”

Section: Theoretical Frameworkmentioning

confidence: 99%

“…[3]. The self energy of a meson M is obtained from closing the pion line in the Mπ → Mπ T -matrix element T Mπ .…”

Section: Theoretical Frameworkmentioning

confidence: 99%

See 3 more Smart Citations

Properties of open and hidden charm meson in light quark matter

Cleven¹,

Magas²,

Ramos³

2018

Proceedings of XVII International Conference on Hadron Spectroscopy and Structure — PoS(Hadron2017)

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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 and the finite temperature effects are included using the Imaginary Time Formalism. The key observables presented here are the spectral function and the pion-induced width at finite temperatures for the mesons D, D * and most importantly J/ψ. As a subsequent application the charmed-meson spectral functions are used to describe the behaviour of a dynamically generated X(3872) in a hot pion bath.

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Section: Resultsmentioning

confidence: 99%

“…For a detailed discussion of the amplitudes we refer to Ref. [3]. At this point we only state the most striking feature in the hidden-charm sector.…”

Section: Theoretical Frameworkmentioning

confidence: 99%

See 2 more Smart Citations

Properties of open and hidden charm meson in light quark matter

Cleven¹,

Magas²,

Ramos³

2018

Proceedings of XVII International Conference on Hadron Spectroscopy and Structure — PoS(Hadron2017)

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“…The main novelty of the work presented in this contribution is the extension of the model above so as to include finite temperature corrections. We use the method described in [9,10] up to some technicalities. On the one hand, in order to take into account the effect of a pionic bath at finite temperature on the properties of the ground-state charmed mesons, we use the imaginary time formalism (ITF).…”

Section: Finite Temperaturementioning

confidence: 99%

Properties of heavy mesons at finite temperature

Montaña

Ramos

Tolós

2020

SciPost Phys. Proc.

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We study the properties of heavy mesons using a unitarized approach in a hot pionic medium, based on an effective hadronic theory. The interaction between the heavy mesons and pseudoscalar Goldstone bosons is described by a chiral Lagrangian at next-to-leading order in the chiral expansion and leading order in the heavy-quark mass expansion so as to satisfy heavy-quark spin symmetry. The meson-meson scattering problem in coupled channels with finite-temperature corrections is solved in a self-consistent manner. Our results show that the masses of the ground-state charmed mesons D(0^-)D(0−) and D_s(1^-)Ds(1−) decrease in a pionic environment at T\neq 0T≠0 and they acquire a substantial width. As a consequence, the behaviour of excited mesonic states (D_{s0}^*(2317)^\pmDs0*(2317)± and D_0^*(2300)^{0,\pm}D0*(2300)0,±), generated dynamically in our heavy-light molecular model, is also modified at T\neq 0T≠0. The aim is to test our results against Lattice QCD calculations in the future.

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Thermal energy of a charm-meson molecule in a pion gas

Braaten,

He,

Ingles

et al. 2024

J. High Energ. Phys.

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The thermal corrections to the propagator of a loosely bound charm-meson molecule in a pion gas are calculated to next-to-leading order in the heavy-meson expansion using a zero-range effective field theory. Ultraviolet divergences in the charm-meson-pair self energy are canceled by corrections to the charm-meson-pair contact vertex. Terms that are singular at the charm-meson-pair threshold can be absorbed into thermal corrections to the rest energies and kinetic masses of the charm-meson constituents. The remaining terms reduce to a thermal correction to the binding momentum that is proportional to the pion number density and suppressed by the pion/charm-meson mass ratio. The correction gives a tiny decrease in the binding energy of the charm-meson molecule relative to the charm-meson-pair threshold in the pion gas and a change in its thermal width that is small compared to the thermal widths of the charm-meson constituents. These results are encouraging for the prospects of observing X(3872) and $$ {T}_{cc}^{+}(3875) $$ T cc + 3875 in the expanding hadron gas produced by heavy-ion collisions.

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Properties of open and hidden charm mesons in light quark matter

Cited by 25 publications

References 37 publications

Properties of open and hidden charm meson in light quark matter

Properties of open and hidden charm meson in light quark matter

Properties of heavy mesons at finite temperature

Thermal energy of a charm-meson molecule in a pion gas

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