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相关论文: In-Medium $K^+$ Electromagnetic Form Factor with a…

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We study the properties of the charged kaon in symmetric nuclear matter using a Bethe-Salpeter amplitude to model the quark-anti-quark bound state, which is well constrained by previous studies of its vacuum properties. The electromagnetic…

高能物理 - 唯象学 · 物理学 2024-04-26 G. H. S. O. Yabusaki , J. P. B. C. de Melo , K. Tsushima , T. Frederico , W. de Paula

We explore the modifications of hadron structure in a nuclear medium, focusing on the spacelike electromagnetic form factors (EMFFs) of light and heavy-light pseudoscalar mesons. By combining the light-front quark model (LFQM) with the…

高能物理 - 唯象学 · 物理学 2025-06-04 Ahmad Jafar Arifi , Parada T. P. Hutauruk , Kazuo Tsushima

We study the nucleon electromagnetic (EM) form factors in symmetric nuclear matter as well as in vacuum within a light-front approach using the in-medium inputs calculated by the quark-meson coupling model. The same in-medium quark…

高能物理 - 唯象学 · 物理学 2018-03-14 W. R. B. de Aráujo , J. P. B. C. de Melo , K. Tsushima

The kaon electromagnetic (e.m.) form factor is reviewed considering a light-front constituent quark model. In this approach, it is discussed the relevance of the quark-antiquark pair terms for the full covariance of the e.m. current. It is…

高能物理 - 唯象学 · 物理学 2009-11-13 Fabiano P. Pereira , J. P. B. C. de Melo , T. Frederico , Lauro Tomio

We study the electromagnetic form factors, decay constants and charge radii of the pion and kaon within the framework of light-front field theory formalism where we use an ansatz for the quark-meson interaction bound-state function which is…

高能物理 - 唯象学 · 物理学 2015-08-26 George H. S. Yabusaki , Ishtiaq Ahmed , M. Ali Paracha , J. P. B. C. de Melo , Bruno El-Bennich

Kaon electroweak properties in symmetric nuclear matter are studied in the Nambu--Jona-Lasinio model using the proper-time regularization. The valence quark properties in symmetric nuclear matter are calculated in the quark-meson coupling…

核理论 · 物理学 2019-10-21 Parada T. P. Hutauruk , K. Tsushima

Properties of \r{ho}-meson in symmetric nuclear matter are investigated within a light-front constituent quark model (LFCQM), using the in-medium input calculated by the quark-meson coupling (QMC) model. The LFCQM used here was previously…

高能物理 - 唯象学 · 物理学 2017-03-08 J. P. B. C. de Melo , K. Tsushima

The properties of the kaon, $K$, and antikaon, $\kbar$, in nuclear medium are studied in the quark-meson coupling (QMC) model. Employing a constituent quark-antiquark (MIT bag model) picture, their excitation energies in a nuclear medium at…

核理论 · 物理学 2010-02-17 K. Tsushima , K. Saito , A. W. Thomas , S. V. Wright

The pion properties in symmetric nuclear matter are investigated with the Quark-Meson Coupling (QMC) Model plus the light-front constituent quark model~(LFCQM). The LFCQM has been quite successful in describing the properties of…

高能物理 - 唯象学 · 物理学 2016-06-22 J. P. B. C. de Melo , Kazuo Tsushima , Tobias Frederico

In this paper, we investigate the electromagnetic form factors (EMFFs) and charge radii of pseudoscalar mesons within the light-front quark model (LFQM). Using parameters derived from the confinement of mesonic decay constants, we obtain…

高能物理 - 唯象学 · 物理学 2025-07-11 Shuai Xu , Xiao-Nan Li , Xing-Gang Wu

Properties of $\rho$-meson in symmetric nuclear matter are investigated in a light-front constituent quark model (LFCQM), using the in-medium inputs calculated by the quark-meson coupling (QMC) model. The LFCQM used in this study was…

高能物理 - 唯象学 · 物理学 2018-12-26 J. P. B. C. de Melo , K. Tsushima

In this paper, we study the $\rho$-meson electromagnetic form factors (EMFFs) within the framework of light-front quark model (LFQM). The physical form factors $G_{C,M,Q}(Q^2)$ of $\rho$-meson as well as the charged square radius $\langle…

高能物理 - 唯象学 · 物理学 2025-05-06 Shuai Xu , Xiao-Nan Li , Xing-Gang Wu

The spectroscopic parameters as well as electromagnetic form factor of the strange particle kaon are investigated in vacuum and a medium with finite density. The obtained vacuum mass and decay constant, which are consistent with the…

高能物理 - 唯象学 · 物理学 2022-05-18 N. Er , K. Azizi

The kaon electromagnetic form factor is calculated within a light-front constituent quark model (LFCQM). The electromagnetic components of the current are extracted from the Feynman triangle diagram within the light-front approach. We also…

高能物理 - 唯象学 · 物理学 2015-06-11 Edson O. da Silva , J. P. B. C. de Melo , Victo S. Filho , Bruno El-Bennich

The electromagnetic form factor of the kaon meson is calculated in the light-cone formalism of the relativistic constituent quark model. The calculated $K^+$ form factor is consistent with almost all of the available experimental data at…

高能物理 - 唯象学 · 物理学 2007-05-23 Bo-Wen Xiao , Xin Qian , Bo-Qiang Ma

Nucleon electromagnetic form factors are studied in the cloudy bag model (CBM) with center-of-mass and recoil corrections. This is the first presentation of a full set of nucleon form factors using the CBM. The center of mass motion is…

核理论 · 物理学 2008-11-26 D. H. Lu , A. W. Thomas , A. G. Williams

We study the octet baryon electromagnetic form factors in nuclear matter using the covariant spectator quark model extended to the nuclear matter regime. The parameters of the model in vacuum are fixed by the study of the octet baryon…

高能物理 - 唯象学 · 物理学 2012-12-04 G. Ramalho , K. Tsushima , A. W. Thomas

We discuss the electromagnetic form factors, axial form factors, and structure functions of a bound nucleon in the quark-meson coupling (QMC) model. Free space nucleon form factors are calculated using the improved cloudy bag model (ICBM).…

核理论 · 物理学 2007-05-23 K. Tsushima , D. H. Lu , W. Melnitchouk , K. Saito , A. W. Thomas

There is evidence that the properties of hadrons are modified in a nuclear medium. Information about the medium modifications of the internal structure of hadrons is fundamental for the study of dense nuclear matter and high-energy…

核理论 · 物理学 2025-05-09 G. Ramalho , K. Tsushima , Myung-Ki Cheoun

We study the magnetic moments of the octet, decuplet, low-lying charm, and low-lying bottom baryons with nonzero light quarks in symmetric nuclear matter using the quark-meson coupling (QMC) model, which satisfies the constraint for the…

高能物理 - 唯象学 · 物理学 2022-05-04 Kazuo Tsushima
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