Results 51 to 60 of about 215,997 (253)

Phases of Hadron-Quark Matter in (Proto) Neutron Stars

open access: yesUniverse, 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

open access: yesAdvances 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

Tetra- and Penta-Quark Structures in the Constituent Quark Model [PDF]

open access: yesSymmetry, 2020
With the development of high energy physics experiments, a large amount of exotic states in the hadronic sector have been observed. In order to shed some light on the nature of the tetraquark and pentaquark candidates, a constituent quark model, along with the Gaussian expansion method, has been employed systematically in real- and complex-range ...
Gang Yang, Jialun Ping, Jorge Segovia
openaire   +4 more sources

Exploring the Phytochemical and Physical Stability of Phycocyanin, Anthocyanins, and Betacyanin in a Cheesecake Product

open access: yesMolecular Nutrition &Food Research, EarlyView.
Phycocyanin, anthocyanins, and betacyanin were tested with various sweeteners (sucrose, fructose, dextrose, xylitol, sorbitol) to assess their impact on color retention, antioxidant activity, and sensory properties. Key parameters investigated include pigment degradation, antioxidant performance, color measurements, and consumer acceptability, offering
Cristina Selin   +11 more
wiley   +1 more source

Spectroscopy of higher bottomonia

open access: yesEPJ Web of Conferences, 2015
In this contribution, we discuss our recent unquenched quark model results for the spectrum of bb̄ mesons with self energy corrections, due to the coupling to the meson-meson continuum.
Ferretti J.
doaj   +1 more source

A 4 modular flavour model of quark mass hierarchies close to the fixed point τ = i∞

open access: yesJournal 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

open access: yes, 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

Performance of pyDock in 8th CAPRI: Energy‐Based Scoring Applied to Docking and AlphaFold Models

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT The 8th CAPRI edition has shown a significant evolution in the field of protein–protein complex structure prediction. We have participated in all 11 targets proposed in this edition, involving domain‐domain, protein–protein, protein‐peptide, and protein‐DNA interactions, including homo‐ and hetero‐meric interfaces.
Luis Angel Rodríguez‐Lumbreras   +5 more
wiley   +1 more source

Dynamically generated magnetic moment in the Wigner-function formalism

open access: yesPhysics Letters B, 2019
We study how the mass and magnetic moment of the quarks are dynamically generated in nonequilibrium quark matter. We derive the equal-time transport and constraint equations for the quark Wigner function in a magnetized quark model and solve them in the ...
Shijun Mao, Dirk H. Rischke
doaj   +1 more source

The Quark Spin Distributions of the Nucleon

open access: yes, 1998
The quark helicity measured in polarized deep inelastic scattering is different from the quark spin in the rest frame of the nucleon. We point out that the quark spin distributions $\Delta q_{RF}(x)$ are connected with the quark helicity distributions ...
Aoki   +11 more
core   +2 more sources

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