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相关论文: In-medium mass shifts of $B_c^{(*)}, B_s^{(*)}$ an…

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For the first time, we estimate the in-medium mass shift of the two-flavored heavy mesons $B_c, B_c^*, B_s, B_s^*, D_s$ and $D_s^*$ in symmetric nuclear matter. The estimates are made by evaluating the lowest order one-loop self-energies.…

高能物理 - 唯象学 · 物理学 2024-07-26 S. L. P. G. Beres

For the first time, we estimate the in-medium mass shift of the two-flavored heavy mesons $B_c, B_c^*, B_s, B_s^*, D_s$ and $D_s^*$ in symmetric nuclear matter. The estimates are made by evaluating the lowest order one-loop self-energies.…

高能物理 - 唯象学 · 物理学 2024-12-06 G. N. Zeminiani , S. L. P. G. Beres , K. Tsushima

We calculate the $B_c$- and $B_s$-nucleus bound state energies and coordinate space radial wave functions by solving the Klein-Gordon equation in momentum space. The attractive strong potentials for the $B_c$ and $B_s$ mesons in nuclei are…

核理论 · 物理学 2025-08-26 G. N. Zeminiani , S. L. P. G. Beres , K. Tsushima

We review the in-medium modifications of effective masses (Lorentz scalar potentials or phenomenon of mass shift) of heavy-heavy and heavy-light mesons in symmetric nuclear matter and their nuclear bound states. We use a combined approach…

核理论 · 物理学 2025-06-11 J. J. Cobos-Martínez , Guilherme N. Zeminiani , Kazuo Tsushima

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

We calculate the $B^-$-, $\overline{B^0}$-, $D^+$-, $D^0$-, $K^-$-, and $\overline{K^0}$-$^{12}$C bound state energies by solving the Klein-Gordon (K;G.) equation in momentum space, and also obtain the corresponding coordinate space radial…

核理论 · 物理学 2025-08-27 G. N. Zeminiani , K. Tsushima

We calculate the in-medium $D$ and $\bar D$-meson masses in isospin asymmetric nuclear matter in an effective chiral model. The $D$ and $\bar D$ - mass modifications arising from their interactions with the nucleons and the scalar mesons in…

核理论 · 物理学 2009-03-12 Amruta Mishra , Arindam Mazumdar

We present a preliminary lattice determination of the masses and decay constants of the pseudoscalar and vector mesons $B_c$ and $B_c^*$. Our analysis is based on the gauge configurations produced by the European Twisted Mass Collaboration…

高能物理 - 格点 · 物理学 2018-12-04 D. Becirevic , A. Melis , L. Riggio , G. Salerno , S. Simula

In this article, we calculate the in-medium mass modifications of the scalar mesons $D_0$ and $B_0$ using the QCD sum rules. In calculations, we observe that the $D_0N$ and $B_0N$ scattering lengths are about $1.1\,\rm{fm}$ and…

高能物理 - 唯象学 · 物理学 2011-10-20 Zhi-Gang Wang , Tao Huang

We estimate the $\Upsilon$, $\eta_b$ and $B^*$ meson mass shifts in symmetric nuclear matter. The interest is, whether the strengths of the bottomonium-(nuclear matter) and charmonium-(nuclear matter) interactions are similar or different.…

高能物理 - 唯象学 · 物理学 2021-09-15 G. N. Zeminiani , J. J. Cobos-Martinez , K. Tsushima

We present a comprehensive study of mass modifications of scalar, pseudo-scalar, vector, and axial-vector mesons in nuclear matter using the three-flavor extended Linear Sigma Model (eLSM) and the two-flavor Parity Doublet Model (PDM). The…

核理论 · 物理学 2020-04-08 Daiki Suenaga , Phillip Lakaschus

In-medium properties of the low-lying strange, charm, and bottom baryons in symmetric nuclear matter are studied in the quark-meson coupling (QMC) model. Results for the Lorentz-scalar effective masses, mean field potentials felt by the…

高能物理 - 唯象学 · 物理学 2019-01-23 K. Tsushima

Employing QCD sum rules the in-medium modifications of scalar charm mesons in a cold nuclear matter environment are estimated. The mass splitting of D*-D*-bar is quantified.

核理论 · 物理学 2011-05-18 Thomas Hilger , Burkhard Kampfer

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

In-medium properties of the low-lying baryons are studied in the quark-meson coupling (QMC) model, focusing on the $\Sigma_b$ and $\Xi_b$ baryons. It is predicted that the Lorentz-scalar effective mass of $\Sigma_b$ becomes smaller than…

高能物理 - 唯象学 · 物理学 2019-04-11 K. Tsushima

We use lattice QCD to predict the mass of the $B_c$ meson. We use the MILC Collaboration's ensembles of lattice gauge fields, which have a quark sea with two flavors much lighter than a third. Our final result is $m_{B_c}=6304\pm12^{+18}_{-…

The $J/\Psi$ mass shift in cold nuclear matter is computed using an effective Lagrangian approach. The mass shift is computed by evaluating $D$ and $D^*$ meson loop contributions to the $J/\Psi$ self-energy employing medium-modified meson…

核理论 · 物理学 2011-02-15 G. Krein , A. W. Thomas , K. Tsushima

We study the mass shifts of the charmonium ($\bar{c}c$) states ($J/\psi$, $\psi(2S)$, $\psi(1D)$, $\chi_{c0}$, $\chi_{c1}$ and $\chi_{c2}$) as well as the bottomonium ($\bar{b}b$) states ($\Upsilon(1S)$, $\Upsilon(2S)$, $\Upsilon_2(1D)$,…

高能物理 - 唯象学 · 物理学 2022-12-26 Arpita Mondal , Pallabi Parui , Amruta Mishra

We calculate the shift in masses and decay constants of $D_s(1968)$ and $B_s(5370)$ mesons in hot and dense asymmetric strange hadronic matter using QCD sum rules and chiral SU(3) model. In-medium strange quark condensates $\left\langle…

高能物理 - 唯象学 · 物理学 2017-11-03 Rahul Chhabra , Arvind Kumar

In this article, we study the $\Lambda_c$ and $\Lambda_b$ baryons in the nuclear matter using the QCD sum rules, and obtain the in-medium masses $M_{\Lambda_c}^*=2.335\,\rm{GeV}$, $M_{\Lambda_b}^*=5.678\,\rm{GeV}$, the in-medium vector…

高能物理 - 唯象学 · 物理学 2011-12-02 Zhi-Gang Wang
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