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相关论文: Octet and decuplet baryon self-energies in relativ…

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We calculate the SU(3)-breaking corrections to the hyperon vector coupling $f_1(0)$ up to $\mathcal{O}(p^4)$ in covariant baryon chiral perturbation theory with dynamical octet and decuplet contributions. We find that the decuplet…

高能物理 - 唯象学 · 物理学 2009-07-30 L. S. Geng , J. Martin Camalich , M. J. Vicente Vacas

We investigate the structure of the SU(3) octet and decuplet baryons employing a constituent quark model designed for the study of the baryon-baryon interaction and successfully applied to the meson spectra. The model considers through the…

高能物理 - 唯象学 · 物理学 2009-11-11 A. Valcarce , H. Garcilazo , J. Vijande

We study the chiral expansion of the baryon octet and decuplet masses in the isospin limit. It is illustrated that a chiral expansion of the one-loop contributions is rapidly converging up to quark masses that generously encompasses the…

高能物理 - 格点 · 物理学 2019-07-31 M. F. M. Lutz , Yonggoo Heo , Xiao-Yu Guo

In this work we present a minimal parametrization of the light-cone distribution amplitudes of the baryon octet including higher twist contributions. Simultaneously we obtain the quark mass dependence of the amplitudes at leading one-loop…

高能物理 - 唯象学 · 物理学 2015-11-19 Philipp Wein , Andreas Schäfer

A formalism for treating the scattering of decuplet baryons in chiral effective field theory is developed. The minimal Lagrangian and potentials in leading-order SU(3) chiral effective field theory for the interactions of octet baryons…

核理论 · 物理学 2017-12-06 J. Haidenbauer , S. Petschauer , N. Kaiser , Ulf-G. Meißner , W. Weise

In chiral models with SU(3) group structure, strange form factors of baryon octet are evaluated by constructing their sum rules to yield theoretical predictions comparable to the recent experimental data of SAMPLE Collaboration. We also…

高能物理 - 唯象学 · 物理学 2009-11-07 Soon-Tae Hong

We study two-body weak decays of charmed baryons \Lambda_c and \Xi_c into an octet or decuplet baryon and a pseudoscalar meson employing the SU(3) flavor symmetry. Using certain measured Cabibbo-favored modes, we fix the reduced amplitudes…

高能物理 - 唯象学 · 物理学 2009-10-30 K. K. Sharma , R. C. Verma

We calculate the complete $T$ matrices with decuplet contributions for pion-nucleon scattering to order $\mathcal{O}(\epsilon^3)$ in heavy baryon SU(3) chiral perturbation theory. The baryon mass in the chiral limit $M_0$ and the low-energy…

核理论 · 物理学 2024-12-12 Jing Ou-Yang , Bo-Lin Huang

Treating the strange quark mass as a heavy scale compared to the light quark mass, we perform a matching of the nucleon mass in the SU(3) sector to the two-flavor case in covariant baryon chiral perturbation theory. The validity of the $19$…

核理论 · 物理学 2017-01-31 Xiu-Lei Ren , L. Alvarez-Ruso , Li-Sheng Geng , T. Ledwig , Jie Meng , M. J. Vicente Vacas

Baryon Chiral Perturbation Theory combined with the $1/N_c$ expansion is implemented for three flavors. Baryon masses, vector charges and axial vector couplings are studied to one-loop and organized according to the $\xi$-expansion, in…

核理论 · 物理学 2018-03-21 Ishara P. Fernando , Jose L. Goity

We show that application of quantum unitary groups, in place of ordinary flavor SU(n_f), to such static aspects of hadron phenomenology as hadron masses and mass formulas is indeed fruitful. The so-called q-deformed mass formulas are given…

高能物理 - 唯象学 · 物理学 2007-05-23 A. M. Gavrilik

We compute the strangeness content of the baryon octet and decuplet states based on an analysis of recent lattice simulations of the BMW, PACS, LHPC and HSC groups for the pion-mass dependence of the baryon masses. Our results rely on the…

高能物理 - 唯象学 · 物理学 2015-06-04 A. Semke , M. F. M. Lutz

We study the singly charmed baryon two-body decays of $\mathbf{B}_c \rightarrow \mathbf{B}_D P$ under $SU(3)_{F}$ flavor symmetry, where ${\bf B}_{c}$ refers to anti-triplet singly charmed baryons, and ${\bf B}_{D}$ and $P$ denote decuplet…

高能物理 - 唯象学 · 物理学 2025-01-30 Chao-Qiang Geng , Chia-Wei Liu , Sheng-Lin Liu

The semileptonic decays and two-body nonleptonic decays of light baryon octet ($T_8$) and decuplet ($T_{10}$) consisting of light $u,d,s$ quarks are studied with the SU(3) flavor symmetry in this work. We obtain the amplitude relations…

高能物理 - 唯象学 · 物理学 2019-10-23 Ru-Min Wang , Mao-Zhi Yang , Hai-Bo Li , Xiao-Dong Cheng

We report a calculation of the low-lying baryon magnetic moments using covariant chiral perturbation theory within the extended-on-mass-shell renormalization scheme including intermediate octet and decuplet contributions. For the case of…

高能物理 - 唯象学 · 物理学 2014-11-20 J. Martin Camalich , L. Alvarez-Ruso , L. S. Geng , M. J. Vicente Vacas

We present a 2+1--flavor lattice QCD calculation of the electromagnetic Dirac and Pauli form factors of the octet baryons. The magnetic Sachs form factor is extrapolated at six fixed values of $Q^2$ to the physical pseudoscalar masses and…

We compute the quark-mass dependence of the baryon octet and decuplet masses within the $\chi$-MS scheme at the one-loop level. The results are confronted with recent lattice QCD simulations of the MILC collaboration. A fair reproduction of…

核理论 · 物理学 2011-12-30 A. Semke , M. F. M. Lutz

The weak and electromagnetic radiative baryon decays of octet $T_{8}$, decuplet $T_{10}$, single charmed anti-triplet $T_{c3}$ and sextet $T_{c6}$, single heavy bottomed anti-triplet $T_{b3}$ and sextet $T_{b6}$ are investigated by using…

高能物理 - 唯象学 · 物理学 2021-02-12 Ru-Min Wang , Xiao-Dong Cheng , Ying-Ying Fan , Jie-Lei Zhang , Yuan-Guo Xu

Magnetic moments of baryons in the ground-state octet and decuplet are calculated in a light-front framework. We investigate the effects of quark mass variation both in the current operator and in the wavefunctions. A simple fit uses single…

核理论 · 物理学 2007-05-23 Simon Capstick , B. D. Keister

We construct a linear $SU(3)_L \times SU(3)_R$ parity doublet model for octet baryons. Our model employs the $(3,\bar{3}) + (\bar{3},3)$ and $(3,6) + (6,3)$ chiral representations while excluding the $(8,1) + (1,8)$ representation. Through…

高能物理 - 唯象学 · 物理学 2026-02-16 Bikai Gao , Atsushi Hosaka