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相关论文: $J/\psi$ and $\eta_c$ in asymmetric hot magnetized…

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We study the in-medium masses of the charmonium states $J/\psi$ and $\eta_{c}$ in the nuclear medium using QCD sum rule approach. These mass modifications arise due to modifications of the scalar and the twist-2 gluon condensates in the hot…

核理论 · 物理学 2010-11-11 Arvind Kumar , Amruta Mishra

We investigate the mass-shift of $P$-wave charmonium (${\chi_c}_0$, ${\chi_c}_1$) and $S$ and $P$-wave bottomonium ($\eta_b$, $\Upsilon$, ${\chi_b}_0$ and ${\chi_b}_1$) states in magnetized hot asymmetric nuclear matter using the…

高能物理 - 唯象学 · 物理学 2020-01-08 Rajesh Kumar , Arvind Kumar

In this article, we calculate the mass shift and decay constant of isospin averaged pseudoscalar ($D^+$,$D^0$) and scalar ($D^+_0$,$D^0_0$) mesons by the magnetic field induced quark and gluon condensates at finite density and temperature…

高能物理 - 唯象学 · 物理学 2020-01-15 Rajesh Kumar , Arvind Kumar

We investigate medium-induced change of mass and width of J/psi and eta_c across the phase transition in hot gluonic matter using QCD sum rules. In the QCD sum rule approach, the medium effect on heavy quarkonia is induced by the change of…

高能物理 - 唯象学 · 物理学 2008-11-26 Kenji Morita , Su Houng Lee

The $\eta N$ interactions are investigated in the hot magnetized asymmetric nuclear matter using chiral SU(3) model and chiral perturbation theory (ChPT). In the chiral model, the in-medium properties of $\eta$-meson are calculated by the…

核理论 · 物理学 2023-06-21 Rajesh Kumar , Arvind Kumar

In this work we shall investigate the mass modifications of scalar mesons $\left( D_{0}, B_{0}\right)$,vector mesons $\left( D^{\ast}, B^{\ast}\right)$ and axial-vector mesons $\left(D_{1}, B_{1}\right)$ at finite density and temperature of…

核理论 · 物理学 2014-07-25 Arvind Kumar

The in-medium masses of the lowest S-wave charmonium states (vector meson, $J/\psi$ and pseudoscalar meson, $\eta_c$) and P-wave charmonium states (scalar, $\chi_{c0}$ and axialvector $\chi_{c1}$) are investigated in magnetized nuclear…

核理论 · 物理学 2019-09-17 Amruta Mishra , Pallabi Parui , Ankit Kumar , Sourodeep De

The in-medium properties of $\eta$ mesons are studied in hot and dense isospin asymmetric strange magnetized matter using the chiral SU(3) hadronic mean-field model. The scalar and vector density of baryons are expressed in terms of thermal…

高能物理 - 唯象学 · 物理学 2022-11-22 Shivanshi Tiwari , Rajesh Kumar , Manisha Kumari , Arvind Kumar

Using QCD sum rules and chiral SU(3) model, we investigate the effect of temperature, density, strangeness fraction and isospin asymmetric parameter on the shift in masses and decay constants of the pseudoscalar $D$ and $B$ meson in…

高能物理 - 唯象学 · 物理学 2017-08-23 Rahul Chhabra , Arvind Kumar

We observed the impact of finite magnetic field on the in-medium mass and decay constant of isospin averaged vector $D^*(D^{*^+},D^{*^0})$ and axial-vector $D_1(D^+_1, D^0_1)$ mesons. The quark and gluon condensates of the nuclear medium at…

高能物理 - 唯象学 · 物理学 2020-12-02 Rajesh Kumar , Rahul Chhabra , Arvind Kumar

We investigate the modification of the $J/\psi$ meson mass in asymmetric nuclear matter at zero and finite temperatures employing an effective Lagrangian approach that considers the contributions of $DD$ and $DD^*$ meson loops. The medium…

高能物理 - 唯象学 · 物理学 2026-04-29 Manpreet Kaur , Arvind Kumar

We investigate the masses of the lowest c\bar{c} states, the J/psi and eta_c, in nuclear matter using QCD sum rules. Up to dimension four, the differences between the operator product expansions in vacuum and in medium arise from the…

核理论 · 物理学 2011-09-29 Frank Klingl , Sungsik Kim , Su Houng Lee , Philippe Morath , Wolfram Weise

We calculate the effects of finite density and temperature of isospin asymmetric strange hadronic matter, for different strangeness fractions, on the in-medium properties of vector $\left( D^{\ast}, D_{s}^{\ast}, B^{\ast},…

核理论 · 物理学 2015-09-29 Arvind Kumar , Rahul Chhabra

We point out that chiral condensates at nonzero temperature and magnetic fields are in strict connection to the space-time integral of corresponding two-point neutral meson correlation functions in the pseudoscalar channel via the…

高能物理 - 格点 · 物理学 2022-03-14 H. -T. Ding , S. -T. Li , J. -H. Liu , X. -D. Wang

The mass modifications of the light vector mesons ($\omega$, $\rho$ and $\phi$) are investigated in asymmetric nuclear matter in the presence of strong magnetic fields, using a QCD sum rule approach. These are computed from the medium…

核理论 · 物理学 2019-08-07 Amruta Mishra , Ankit Kumar , Pallabi Parui , Sourodeep De

We investigate the mass modifications of open strange mesons (vector $K^*$ and axial vector $K_1$) in (magnetized) isospin asymmetric nuclear matter using quantum chromodynamics sum rule (QCDSR) approach. The in-medium decay widths of $K^*$…

高能物理 - 唯象学 · 物理学 2023-11-09 Ankit Kumar , Amruta Mishra

The hadronic screening mass at high temperature ($T$) in QCD$_4$ is examined on the basis of the QCD sum rules in (2+1) dimensions. Due to the magnetic gluon condensate at high $T$ which is expected to be nonvanishing, the screening mass…

高能物理 - 唯象学 · 物理学 2009-10-28 M. Ishii , T. Hatsuda

By an effective Lagrangian plus QCD sum-rule approach, we investigate the mass shift of the $J/\psi$ state in medium, in symmetric nuclear matter with zero and finite temperature, and cold strange matter. The in-medium mass of the $J/\psi$…

高能物理 - 唯象学 · 物理学 2021-02-03 Rahul Chhabra , Kazuo Tsushima

QCD sum rules are evaluated at finite nucleon densities and temperatures to determine the change of mass parameters for the lightest vector mesons $\rho$, $\omega$ and $\phi$ in a strongly interacting medium. For conditions relevant for the…

核理论 · 物理学 2008-11-26 S. Zschocke , O. P. Pavlenko , B. Kampfer

Using the unification of the chiral SU(3) model and QCD sum rules, we deduce the in-medium properties of $K^\pm_1$ meson. Within the chiral SU(3) model, medium modified gluon and quark condensates are evaluated through their interactions…

高能物理 - 唯象学 · 物理学 2021-04-20 Rajesh Kumar , Arvind Kumar
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