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相关论文: D-mesons: In-medium effects at FAIR

200 篇论文

Spectral functions of the pseudoscalar $D$ meson in the nuclear medium are analyzed using QCD sum rules and the maximum entropy method. This approach enables us to extract the spectral functions without any phenomenological assumption, and…

高能物理 - 唯象学 · 物理学 2016-04-28 Kei Suzuki , Philipp Gubler , Makoto Oka

We study the properties of $K$ and $\bar K$ mesons in nuclear matter at finite temperature from a chiral unitary approach in coupled channels which incorporates the $s$- and p-waves of the kaon-nucleon interaction. The in-medium solution…

核理论 · 物理学 2008-11-26 L. Tolos , D. Cabrera , A. Ramos

We present a study of in-medium cross sections and (off-shell) transition rates for the most relevant binary reactions for strange pseudoscalar meson production close to threshold in heavy-ion collisions at FAIR energies. Our results rely…

高能物理 - 唯象学 · 物理学 2015-06-19 Daniel Cabrera , Laura Tolos , Jörg Aichelin , Elena Bratkovskaya

We investigate the properties of pseudoscalar $D$ and vector $D^*$ mesons in an isospin asymmetric nuclear medium using a hybrid approach that integrates the light-front quark model with the chiral SU(3) quark mean field model. The…

高能物理 - 唯象学 · 物理学 2025-06-11 Anshu Gautam , Dhananjay Singh , Navpreet Kaur , Satyajit Puhan , Suneel Dutt , Harleen Dahiya , Arvind Kumar

We show that the measurement of di-leptons might provide only a restricted view into the most dense stages of heavy ion reactions. Thus, possible studies of meson and baryon properties at high baryon densities, as e.g. done at GSI-HADES and…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Vogel , H. Petersen , K. Schmidt , E. Santini , C. Sturm , J. Aichelin , M. Bleicher

The modifications of $D_s$-meson spectra in ultrarelativistic heavy-ion collisions are identified as a quantitative probe of key properties of the hot nuclear medium. This is enabled by the unique valence-quark content of the…

核理论 · 物理学 2013-03-27 Min He , Rainer J. Fries , Ralf Rapp

A set of coupled two-body scattering equations is solved for the DN system embedded in an iso-symmetric nuclear matter. The in-medium behavior of charmed D mesons: (D^+,D^0), is investigated from the self-consistent solution within this…

高能物理 - 唯象学 · 物理学 2008-11-26 T. Mizutani , A. Ramos

The drag force and diffusion coefficients for a D meson are calculated in hot dense matter composed of light mesons and baryons, such as it is formed in heavy-ion collisions. We use a unitarized approach based on effective models for the…

高能物理 - 唯象学 · 物理学 2013-10-23 Laura Tolos , Juan M. Torres-Rincon

The in-medium properties of $D_S$ mesons are investigated within the framework of an effective hadronic model, which is a generalization of a chiral SU(3) model, to SU(4), in order to study the interactions of the charmed hadrons. In the…

核理论 · 物理学 2015-08-25 Divakar Pathak , Amruta Mishra

The properties of charmed mesons in dense matter are studied using a unitary coupled-channel approach in the nuclear medium which takes into account Pauli-blocking effects and meson self-energies in a self-consistent manner. We obtain the…

核理论 · 物理学 2011-02-03 L. Tolos , D. Gamermann , C. Garcia-Recio , R. Molina , J. Nieves , E. Oset , A. Ramos

The conditions of local thermodynamic equilibrium of baryons (non-strange, strange) and mesons (strange) are presented for central Au + Au collisions at FAIR energies using the microscopic transport model UrQMD. The net particle density,…

核理论 · 物理学 2016-10-25 Somnath De , Sudipan De , Subhasis Chattopadhyay

We study the in-medium properties of $D$ and $\bar{D}$ mesons in isospin asymmetric hyperonic matter arising due to their interactions with the light hadrons. The interactions of $D$ and $\bar{D}$ mesons with these light hadrons are derived…

核理论 · 物理学 2015-03-17 Arvind Kumar , Amruta Mishra

We evaluate the in-medium $D$ and $\bar D$-meson masses in hot hadronic matter induced by interactions with the light hadron sector described in a chiral SU(3) model. The effective Lagrangian approach is generalized to SU(4) to include…

核理论 · 物理学 2009-11-10 A. Mishra , E. L. Bratkovskaya , J. Schaffner-Bielich , S. Schramm , H. Stöcker

We study the changes in the partial decay widths of excited charmonium states into $D \bar{D}$, when the D meson mass decreases in nuclear matter, taking the internal structure of the hadrons into account. Calculations within the 3P0 model…

核理论 · 物理学 2009-11-07 Bengt Friman , Su Houng Lee , Taesoo Song

The anti-D meson self-energy is evaluated self-consistently, using unitarized coupled-channel theory, by computing the in-medium meson-baryon T-matrix in the C=-1,S=0 sector. The heavy pseudo-scalar and heavy vector mesons, anti-D and…

核理论 · 物理学 2012-02-22 C. Garcia-Recio , J. Nieves , L. L. Salcedo , L. Tolos

Modifications of baryon properties due to the restoration of the chiral symmetry in an external hot and dense baryon medium are investigated in an effective chiral quark-meson theory. The nucleon arises as a soliton of the Gell-Mann -…

高能物理 - 唯象学 · 物理学 2009-10-22 Chr. V. Christov , E. Ruiz Arriola , K. Goeke

The $\phi$-meson properties in cold nuclear matter are investigated by implementing resonant $\phi N$ interactions as described in effective approaches including the unitarization of scattering amplitudes. Several $N^*$-like states are…

核理论 · 物理学 2017-01-18 D. Cabrera , A. N. Hiller Blin , M. J. Vicente Vacas

We discuss the mass modifications of $\bar{\mathrm{D}}$ and $\bar{\mathrm{D}}^{\ast}$ ($\mathrm{B}$ and $\mathrm{B}^{\ast}$) mesons in nuclear medium. The heavy quark symmetry for $\bar{\mathrm{D}}$ and $\bar{\mathrm{D}}^{\ast}$…

高能物理 - 唯象学 · 物理学 2019-08-07 S. Yasui , K. Sudoh

We study $D$ and $D_s$ mesons at finite temperature using an effective field theory based on chiral and heavy-quark spin-flavor symmetries within the imaginary-time formalism. Interactions with the light degrees of freedom are unitarized…

高能物理 - 唯象学 · 物理学 2020-05-27 Glòria Montaña , Àngels Ramos , Laura Tolos , Juan M. Torres-Rincon

The rho-meson mass shift, width broadening, and spectral density at finite temperature and nucleon density are estimated using a general formula which relates the self-energy to the real and imaginary parts of the forward scattering…

核理论 · 物理学 2009-10-31 V. L. Eletsky , J. I. Kapusta