Results 11 to 20 of about 305,347 (219)

Quark-meson coupling model with short-range quark-quark interactions [PDF]

open access: yesProgress of Theoretical Physics, 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   +3 more sources

Quark-quark interaction and quark matter in neutron stars [PDF]

open access: yesPhysical Review C, 2022
Hyperon ($Y$) mixing in neutron-star matter brings about a remarkable softening of the equation of state (EoS) and the maximum mass is reduced to a value far less than $2M_{\odot}$. One idea to avoid this "hyperon puzzle in neutron stars" is to assume that the many-body repulsions work universally for every kind of baryons.
Y. Yamamoto, N. Yasutake, Th. A. Rijken
openaire   +4 more sources

RENORMALIZED QUARK-ANTI-QUARK FREE ENERGY [PDF]

open access: yesStrong and Electroweak Matter 2002, 2003
5 pages, 2 figures, To appear in the proceedings of Workshop on Strong and Electroweak Matter (SEWM 2002), Heidelberg, Germany, 2-5 Oct ...
Zantow, F.   +3 more
openaire   +3 more sources

Quark Number Susceptibility in Hard Thermal Loop Approximation [PDF]

open access: yes, 2001
We calculate the quark number susceptibility in the deconfined phase of QCD using the hard thermal loop (HTL) approximation for the quark propagator.
Chakraborty, Purnendu   +2 more
core   +2 more sources

Runaway quarks [PDF]

open access: yesPhysical Review D, 1995
When heavy nuclei collide, a quark-gluon plasma is formed. The plasma is subject to strong electric field due to the charge of the colliding nuclei. The electric field can influence the behavior of the quark-gluon plasma. In particular, we might observe an increased number of quarks moving in the direction of that field, as we do in the standard ...
openaire   +3 more sources

Spectral function of quarks in quark matter [PDF]

open access: yesPhysical Review C, 2003
We investigate the spectral function of light quarks in infinite quark matter using a simple, albeit self-consistent model. The interactions between the quarks are described by the SU(2) Nambu--Jona-Lasinio model. Currently mean field effects are neglected and all calculations are performed in the chirally restored phase at zero temperature.
Froemel, Frank   +2 more
openaire   +3 more sources

Thermodynamics and energy loss in D dimensions from holographic QCD model

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We consider the holographic QCD model with a planar horizon in the D dimensions with different consistent metric solutions. We investigate the black hole thermodynamics, phase diagram and equations of state (EoS) in different dimensions.
Zhou-Run Zhu   +3 more
doaj   +1 more source

Top quark decays into heavy quark mesons [PDF]

open access: yesPhysical Review D, 1996
For top quark decays into heavy quark mesons $ $ and $\bar{B}_c^*$ , a complete calculation to the leading order both in QCD coupling constant $ _s$ and in $v$, the typical velocity of the heavy quarks inside the mesons, is performed. Relatons between the top quark mass and the decay branching ratios are studied.
Qiao, Cong-Feng   +2 more
openaire   +3 more sources

Covariant and heavy quark symmetric quark models [PDF]

open access: yesPhysical Review D, 1994
There exist relativistic quark models (potential or MIT-bag) which satisfy the heavy quark symmetry (HQS) relations among meson decay constants and form factors. Covariant construction of the momentum eigenstates, developed here, can correct for spurious center-of-mass motion contributions.Proton form factor and M1 transitions in quarkonia are ...
Tadić, D., Žganec, S.
openaire   +3 more sources

Quark decay top to two bodies

open access: yesVisión Electrónica, 2019
Is investigated the top quark decay (t) two bodies using the spectator model. Is analyzed the decay (t→bW⁺) calculated theoretically the width of decay and decay fraction of the particle whose result is compared with the experimental data of the table ...
Mauricio Rozo-Clavijo   +2 more
doaj   +1 more source

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