Results 51 to 60 of about 1,215,586 (222)
The Effective Baryon–Baryon Potential with Configuration Mixing in Quark Models
UniverseThe effective baryon–baryon potential can be derived in the framework of the quark model. The configurations with different quark spatial distributions are mixed naturally when two baryons get close. The effect of configuration mixing in the chiral quark
Xinmei Zhu, Hongxia Huang, Jialun Ping
doaj +1 more source
Unquenching the Quark Model in a Nonperturbative Scheme
Advances in High Energy Physics, 2019 In recent years, the discovery in quarkonium spectrum of several states not predicted by the naive quark model has awakened a lot of interest. A possible description of such states requires the enlargement of the quark model by introducing quark ...
Pablo G. Ortega +2 more
doaj +1 more source
Phases of Hadron-Quark Matter in (Proto) Neutron Stars
Universe, 2019 In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare phase ...
Fridolin Weber +6 more
doaj +1 more source
Study of the Ground-State Energies of Some Nuclei Using Hybrid Model
Advances in High Energy Physics, 2021 The quark-quark (QQ) interaction as a perturbed term to the nucleon-nucleon interaction (NN) without any coupling between them is studied in a hybrid model. This model is used to calculate the ground-state energies of 2H1 and 4He2 nuclei.
R. Hussien +2 more
doaj +1 more source
N-N Interactions in the Extended Chiral SU(3) Quark Model
, 2003 The chiral SU(3) quark model is extended to include coupling between vector chiral field and quarks. By using this model, the phase shifts of NN scattering for different partial waves are studied. The results are very similar to those of the chiral SU(3)
Bando +23 more
core +1 more source
A 4 modular flavour model of quark mass hierarchies close to the fixed point τ = i∞
Journal of High Energy Physics, 2023 We study the possibility to generate the quark mass hierarchies as well as the CKM quark mixing and CP violation without fine-tuning in a quark flavour model with modular A 4 symmetry.
S. T. Petcov, M. Tanimoto
doaj +1 more source
Quark Number Fluctuations in a Chiral Model at Finite Baryon Chemical Potential
, 2007 We discuss the net quark and isovector fluctuations as well as off-diagonal quark flavor susceptibilities along the chiral phase transition line in the Nambu--Jona-Lasinio (NJL) model.
A. Erdélyi +7 more
core +1 more source
Heavy quark limit in the light front quark model [PDF]
, 1998 An explicit relativistic light-front model is presented which gives the momentum transfer dependent form factors of weak hadronic currents among heavy pseudoscalar and vector mesons in the whole accessible kinematical region $0\leq q^2 \leq q^2_{\max} $.
Demchuk, N. B.
core +2 more sources
Quark mixings and flavor changing interactions with singlet quarks [PDF]
Phys.Rev. D62 (2000) 073005, 2000 Aspects of the quark mixings and flavor changing interactions are investigated in electroweak models with singlet quarks. The effects on the ordinary quark mixing are determined in terms of the quark masses and the parameters describing the mixing between the ordinary quarks q and the singlet quarks Q (q-Q mixing).
arxiv +1 more source
Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions
Astronomische Nachrichten, EarlyView.ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge +3 more
wiley +1 more source