Results 31 to 40 of about 225,392 (278)

Study of heavy quark conserving weak decays in the quark model

open access: yesPhysics Letters B, 2022
Within the framework of a constituent quark model, we investigate the heavy quark conserving weak decays of Ξc and Ξb. This process involves elementary transitions of us→du or s→udu¯ with the heavy quark as a spectator, while for the charmed baryon in ...
Peng-Yu Niu, Qian Wang, Qiang Zhao
doaj   +1 more source

Quark model form factors for heavy-quark effective theory [PDF]

open access: yesNuclear Physics B, 1994
(14 pages), RAL-93-022, OUTP-93 ...
Close, F, Wambach, A
openaire   +2 more sources

Properties of color-flavor locked matter in a quasiparticle model

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We investigate the thermodynamical properties of color-flavor locked (CFL) quark matter at zero temperature, finite temperature, and strong magnetic field by using quasiparticle model. We find that considering CFL quark phase can significantly change the
Peng-Cheng Chu   +6 more
doaj   +1 more source

Quark Number Susceptibility with Finite Quark Mass in Holographic QCD

open access: yes, 2011
We study the effect of a finite quark mass on the quark number susceptibility in the framework of holographic QCD. We work in a bottom-up model with a deformed AdS black hole and D3/D7 model to calculate the quark number susceptibility at finite ...
Kim, Kyung-il   +3 more
core   +1 more source

New signals for vector-like down-type quark in U(1) of $$E_6$$ E6

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We consider the pair production of vector-like down-type quarks in an $$E_6$$ E6 motivated model, where each of the produced down-type vector-like quark decays into an ordinary Standard Model light quark and a singlet scalar.
Kasinath Das   +3 more
doaj   +1 more source

Asymmetries of quark sea in nucleon

open access: yesEPJ Web of Conferences, 2014
The effects of “quark sea” in determining the flavor structure of the octet baryons have been investigated in the chiral constituent quark model. The chiral constituent quark model is able to qualitatively generate the requisite amount of quark sea and ...
Dahiya Harleen
doaj   +1 more source

Calculation of some properties of the vacuum [PDF]

open access: yes, 2002
In this article, we calculate the dressed quark propagator with the flat bottom potential in the framework of the rain-bow Schwinger-Dyson equation, which is determined by mean field approximation of the global colour model lagrangian.
Belyaev V M   +14 more
core   +2 more sources

RELATIVISTIC QUARK MODEL

open access: yesFizika B : a journal of experimental and theoretical physics, 1999
A general Lorentz-covariant quark model of mesons, whose nonrelativistic limit corresponds to Isgur-Scora-Grinstein-Wise model, is constructed. It possesses the heavy quark symmetry and can be easily applied to calculation of form factors. Besides it can be engaged in novel tasks, such a the investigation of the two photon decay of scalar mesons.
Horvatić, D., Tadić, D., Žganec, S.
openaire   +5 more sources

The Effective Baryon–Baryon Potential with Configuration Mixing in Quark Models

open access: yesUniverse
The 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

N-N Interactions in the Extended Chiral SU(3) Quark Model

open access: yes, 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

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