Magnetic moments of the spin-
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 singly charmed baryons in chiral perturbation theory

Wang, Guang-Juan; Meng, L.; Li, Hao-Song; Liu, Zhan-Wei; Zhu, Shi-Lin

doi:10.1103/physrevd.98.054026

Cited by 21 publications

(6 citation statements)

References 70 publications

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“…Here, we adopt the SU(3) chiral perturbation theory (χPT) to investigate the radiative decay properties and magnetic moments of the D Ã and B Ã mesons. The framework of χPT has been widely used to study the radiative decays and magnetic moments of the charmed and bottom vector mesons 1 [28][29][30][31], the octet baryons [34,35], the doubly charmed and bottom heavy baryons [36][37][38][39], and the singly heavy baryons [40][41][42][43], as well as the related chiral quark-soliton model for singly heavy baryons [44,45]. In our calculations, we construct the effective Lagrangians with chiral symmetry and heavy quark symmetry up to Oðp 4 Þ.…”

Section: Introductionmentioning

confidence: 99%

Radiative transitions and magnetic moments of the charmed and bottom vector mesons in chiral perturbation theory

et al. 2019

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In this work, we systematically study the radiative decays and magnetic moments of the charmed and bottom vector mesons with chiral perturbation theory up to one-loop level. We present the results in the SU(2) and SU(3) cases with the mass splitting in loop diagrams kept and unkept, respectively. The obtained decay rates for D Ã and B Ã mesons in the SU(3) case with the mass splitting kept are ΓDÃ0 →D 0 γ ¼ 16.2 þ6.5 −6.0 keV, Γ D Ã− →D − γ ¼ 0.73 þ0.7 −0.3 keV, Γ D Ã− s →D − s γ ¼ 0.32 þ0.3 −0.3 keV, and Γ B Ãþ →B þ γ ¼ 0.58 þ0.2 −0.2 keV, Γ B Ã0 →B 0 γ ¼ 0.23 þ0.06 −0.06 keV, Γ B Ã0 s →B 0 s γ ¼ 0.04 þ0.03 −0.03 keV. The decay width for D Ã− → D − γ is consistent with the experimental measurement. As a byproduct, the full widths ofD Ã0 and D Ã− s are Γ tot ðD Ã0 Þ ≃ 77.7 þ26.7 −20.5 keV and Γ tot ðD Ã− s Þ ≃ 0.62 þ0.45 −0.50 keV, respectively. We also calculate the magnetic moments of the heavy vector mesons. The analytical chiral expressions derived in our work shall be helpful for the extrapolations of lattice QCD simulations in the future.

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Section: Introductionmentioning

confidence: 99%

Radiative transitions and magnetic moments of the charmed and bottom vector mesons in chiral perturbation theory

et al. 2019

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“…[40], which is consistent with the previous study. [41] Furthermore, the 𝑔(𝑠) is a phenomenological intrinsic form factor that is usually chosen in the dipole form…”

Section: λ−mentioning

confidence: 99%

e+e−→Λc+Λ¯c− Cross Sections and the Λc+ Electromagnetic Form Factors within the Extended Vector Meson Dominance Model

Chen 陈,

Yan 闫,

Xie 谢

2024

Chinese Phys. Lett.

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Within the extended vector meson dominance model, we investigate the $e^+ e^- \to \Lambda^+_c \bar{\Lambda}^-_c$ reaction and the electromagnetic form factors of the charmed baryon $\Lambda_c^+$. The model parameters are determined by fitting them to the cross sections of the process $e^+e^-\rightarrow \Lambda_c^+ \bar{\Lambda}_c^-$ and the magnetic form factor $|G_M|$ of $\Lambda^+_c$. By considering four charmoniumlike states, called $\psi(4500)$, $\psi(4660)$, $\psi(4790)$, and $\psi(4900)$, we can well describe the current data on the $e^+ e^- \to \Lambda^+_c \bar{\Lambda}^-_c$ reaction from the reaction threshold up to $4.96 \ \mathrm{GeV}$. In addition to the total cross sections and $|G_M|$, the ratio $|G_E/G_M|$ and the effective form factor $|G_{\mathrm{eff}}|$ for $\Lambda^+_c$ are also calculated, and found that these calculations are consistent with the experimental data. Within the fitted model parameters, we have also estimated the charge radius of the charmed $\Lambda_c^+$ baryon.

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“…In Ref. [44], the author studied the magnetic moments and transition magnetic moments of hidden-charm pentaquark states with coupled channel effects and D wave contributions; this is important because magnetic moments help us understand the inner structure of pentaquarks. In this study, we calculate the magnetic moments of based on the above three models.…”

Section: P Csmentioning

confidence: 99%

Magnetic moments of hidden-charm strange pentaquark states*

Gao

2022

Chinese Phys. C

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This paper calculates the magnetic moments of the hidden-charm strange pentaquark states with a quantum number of $J^P={\frac{1}{2}}^{\pm}$, ${\frac{3}{2}}^{\pm}$, ${\frac{5}{2}}^{\pm}$, and ${\frac{7}{2}}^{+}$ in the molecular, diquark-diquark-antiquark, and diquark-triquark models, respectively. Numerical results demonstrate that the magnetic moments change for a different spin-orbit coupling with the same model and when involving different models with the same angular momentum. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Magnetic moments of the spin- 12 singly charmed baryons in chiral perturbation theory

Cited by 21 publications

References 70 publications

Radiative transitions and magnetic moments of the charmed and bottom vector mesons in chiral perturbation theory

Radiative transitions and magnetic moments of the charmed and bottom vector mesons in chiral perturbation theory

e+e−→Λc+Λ¯c− Cross Sections and the Λc+ Electromagnetic Form Factors within the Extended Vector Meson Dominance Model

Magnetic moments of hidden-charm strange pentaquark states*

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