Results 61 to 70 of about 21,627,885 (312)
EPJ Web of Conferences, 2012 With the advance of experiment, many high excited states of meson are identified. It is found that many of them are difficult to fit into conventional q$ar{q}$q¯ meson spectra. Various explanations are proposed.
Dong Fangfang +4 more
doaj +1 more source
The Short Range Mechanism of N-N interaction in the Extended Chiral SU(3) Quark Model [PDF]
, 2004 We give the comparisons between the chiral SU(3) quark model and the extended chiral SU(3) quark model. The results show that the phase shifts of NN scattering are very similar.
Dai, L. R., Yu, Y. W., Zhang, Z. Y.
core +2 more sources
HEAVY BARYONS IN A QUARK MODEL [PDF]
International Journal of Modern Physics A, 2008 A quark model is applied to the spectrum of baryons containing heavy quarks. The model gives masses for the known heavy baryons that are in agreement with experiment, but for the doubly-charmed baryon Ξcc, the model prediction is too heavy. Mixing between the ΞQ and Ξ′Q states is examined and is found to be small for the lowest lying states.
Roberts, W., Pervin, Muslema
openaire +3 more sources
Asymmetries of quark sea in nucleon
EPJ 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
Quark Number Susceptibility with Finite Quark Mass in Holographic QCD
, 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
Strange baryon spectroscopy in the relativistic quark model [PDF]
, 2015 Mass spectra of strange baryons are calculated in the framework of the relativistic quark model based on the quasipotential approach. Baryons are treated as the relativistic quark-diquark bound systems.
R. Faustov, V. Galkin
semanticscholar +1 more source
THE HYPERCENTRAL CONSTITUENT QUARK MODEL [PDF]
Hadrons, Nuclei and Applications, 2001 The hypercentral Constituent Quark Model is presented and its application to the description of the electromagnetic properties of baryons is reviewed. The results concerning the elastic nucleon form factors and the electromagnetic excitation of baryon resonances are compared with the recent experimental ...
GIANNINI, MAURO, Santopinto, E.
openaire +8 more sources
EPJ Web of Conferences, 2015 In this contribution, we briefly discuss the results for charmonium and bottomonium spectra with self-energy corrections in the unquenched quark model, due to the coupling to the meson-meson continuum The UQM formalism can be extended to include also the
Santopinto E., Ferretti J.
doaj +1 more source
Dibaryons in a constituent quark model [PDF]
, 2015 We investigate the properties of dibaryons containing u and d quarks in the constituent quark model. In constructing the ground state wave function, we choose the spatial part to be fully symmetric and the remaining color, isospin and spin part to be ...
Woosung Park, A. Park, S. H. Lee
semanticscholar +1 more source
A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector [PDF]
Journal of High Energy Physics, 2019 A bstractWe present a novel framework for carrying out global analyses of the Standard Model Effective Field Theory (SMEFT) at dimension-six: SMEFiT.
N. Hartland +6 more
semanticscholar +1 more source