Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Bentz, Wolfgang"'
We examine the properties of composite octet baryons in the nuclear medium and neutron star matter. The internal quark-diquark structure of the octet baryons and the equations of state of nuclear matter and neutron star matter in the mean field appro
Externí odkaz:
http://arxiv.org/abs/2308.13179
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 49 (2022) 03LT01
We investigate the gluonic structure of nuclei within a mean-field model of nuclear structure based upon the modification of the structure of a bound nucleon, with the nucleon described by the Nambu--Jona-Lasinio model. This approach has been shown t
Externí odkaz:
http://arxiv.org/abs/2109.03591
Autor:
Bentz, Wolfgang, Cloët, Ian C.
In the first part of this paper, we present a study of the symmetry energy ($a_s$) and its slope parameter ($L$) for nuclear matter in the framework of the Fermi liquid theory of Landau and Migdal. We derive an exact relation between $a_s$ and $L$, w
Externí odkaz:
http://arxiv.org/abs/2004.11605
Autor:
Bentz, Wolfgang, Cloet, Ian C.
Publikováno v:
Phys. Rev. C 100, 014303 (2019)
We present a study of the skewness of nuclear matter, which is proportional to the third derivative of the energy per nucleon with respect to the baryon density at the saturation point, in the framework of the Landau-Migdal theory. We derive an exact
Externí odkaz:
http://arxiv.org/abs/1904.03588
Publikováno v:
Phys. Rev. C 101, 055204 (2020)
We construct the equation of state for high density neutron star matter at zero temperature using the two-flavor Nambu--Jona-Lasinio (NJL) model as an effective theory of QCD. We build nuclear matter, quark matter, and the mixed phases from the same
Externí odkaz:
http://arxiv.org/abs/1903.06851
Effects of charge symmetry breaking associated with the $u$ and $d$ quark mass difference in the elastic form factors of the pion and kaon are presented. We use a confining version of the Nambu--Jona-Lasinio model. The pion and kaon are described as
Externí odkaz:
http://arxiv.org/abs/1901.06068
Publikováno v:
Phys. Rev. C 97, 055210 (2018)
Charge symmetry breaking (CSB) effects associated with the $u$ and $d$ quark mass difference are investigated in the quark distribution functions and spacelike electromagnetic form factors of the pion and kaon. We use a confining version of the Nambu
Externí odkaz:
http://arxiv.org/abs/1802.05511
Publikováno v:
Phys. Rev. C 96, 045206 (2017)
We present a covariant formulation and model calculations of transverse momentum-dependent quark distribution functions (TMDs) for spin-one hadrons. Emphasis is placed on a description of these 3-dimensional distribution functions which is independen
Externí odkaz:
http://arxiv.org/abs/1707.03787
Electromagnetic form factors of the baryon octet are studied using a Nambu--Jona-Lasinio model which utilizes the proper-time regularization scheme to simulate aspects of colour confinement. In addition, the model also incorporates corrections to the
Externí odkaz:
http://arxiv.org/abs/1603.02741
Publikováno v:
Phys. Rev. Lett. 116, 032701 (2016)
In light of the forthcoming high precision quasielastic electron scattering data from Jefferson Lab, it is timely for the various approaches to nuclear structure to make robust predictions for the associated response functions. With this in mind, we
Externí odkaz:
http://arxiv.org/abs/1506.05875