Results 61 to 70 of about 21,261,020 (311)

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

Strange baryon spectroscopy in the relativistic quark model [PDF]

open access: yes, 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

A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector [PDF]

open access: yesJournal 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

Dibaryons in a constituent quark model [PDF]

open access: yes, 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

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

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

The structure of pentaquarks $P_c^+$ in the chiral quark model [PDF]

open access: yes, 2015
The recent experimental results of LHCb collaboration suggested the existence of pentaquark states with charmonium. To understand the structure of the states, a dynamical calculation of 5-quark systems with quantum numbers $IJ^P=\frac{1}{2}(\frac{1}{2})^\
Gang Yang, J. Ping
semanticscholar   +1 more source

Quark-meson coupling model with short-range quark-quark interactions

open access: yes, 2000
Short-range quark-quark correlations are introduced into the quark-meson coupling (QMC) model phenomenologically. We study the effect of the correlations on the structure of the nucleon in dense nuclear matter.
Saito, Koichi, Tsushima, Kazuo
core   +1 more source

Wigner distributions for gluons in a light-front dressed quark model [PDF]

open access: yes, 2015
We present a calculation of Wigner distributions for gluons in light-front dressed quark model. We calculate the kinetic and canonical gluon orbital angular momentum and spin-orbit correlation of the gluons in this model.
A. Mukherjee, Sreeraj Nair, V. K. Ojha
semanticscholar   +1 more source

Models of the quark mixing matrix [PDF]

open access: yesPhysical Review D, 1992
Presented by Mihir P. Worah at DPF 92 Meeting, Fermilab, November, 1992.
Mihir P. Worah, Jonathan L. Rosner
openaire   +4 more sources

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