Results 101 to 110 of about 21,261,020 (311)
Pion parton distribution functions with the nonrelativistic constituent quark model
Nuclear Physics B, 2023 We calculate the valence quark distribution functions of the π meson using the non-relativistic chiral constituent quark model. The π wave function is obtained by solving the two-body Schrödinger equation within the framework of constituent quark model ...
Qian Wu +6 more
doaj +1 more source
Masses of doubly heavy-quark baryons in an extended chromomagnetic model [PDF]
, 2018 We extend the chromomagnetic model by further considering the effect of color interaction. The effective mass parameters between quark pairs ($m_{qq}$ or $m_{q\bar{q}}$) are introduced to account both the effective quark masses and the color interaction ...
Xin-Zhen Weng, Xiao-Lin Chen, W. Deng
semanticscholar +1 more source
Rationality and hinge disagreements: A critique of constitutivism
Metaphilosophy, EarlyView.Abstract Can we rationally choose between philosophical hinge commitments if they resist argument and evidence? At first glance, such choices seem arbitrary. Coliva and Palmira (2020, 2021) and Coliva and Doulas (2022) argue, however, that adopting a constitutivist account of hinges allows for rational choice through what Coliva terms ‘extended ...
Zoheir Bagheri Noaparast
wiley +1 more source
Proto-strange quark stars from density-dependent quark mass model
European Physical Journal C: Particles and FieldsIn this paper, we investigate the evolution of strange quark stars (SQS) from birth as proto-strange quark stars to maturity as stable SQSs at a zero temperature.
Adamu Issifu +2 more
doaj +1 more source
Experimental Physiology, EarlyView.Abstract The aim of this retrospective analysis was to provide a more comprehensive understanding of the cardiorespiratory profile of world‐class ILCA‐7 sailors (n = 3, all males), through a longitudinal evaluation offering real‐world data on physiological profile and exercise intensity domains. The cardiopulmonary exercise testing (CPET) was performed
Damir Zubac +2 more
wiley +1 more source
Gravitational and higher-order form factors of the pion in chiral quark models
, 2008 The gravitational form factor of the pion is evaluated in two chiral quark models and confronted to the recent full-QCD lattice data. We find good agreement for the case of the Spectral Quark Model, which builds in the vector-meson dominance for the ...
A. Bzdak +11 more
core +1 more source
Color superconductivity in the static Einstein Universe [PDF]
, 2007 We study the behavior of quark and diquark condensates in dense quark matter under the influence of a gravitational field adopting as a simple model the static $D-$dimensional Einstein Universe. Calculations are performed in the framework of the extended
A. V. Tyukov +7 more
core +3 more sources
Experimental Physiology, EarlyView.Abstract In patients previously hospitalised for COVID‐19, a 12‐week high‐intensity interval training (HIIT) intervention has previously been shown to increase left ventricular mass (LVM) immediately after the intervention. In the present study, we examined the effects of the same HIIT scheme on LVM, pulmonary diffusing capacity, symptom severity and ...
Iben Elmerdahl Rasmussen +21 more
wiley +1 more source
QUARK AND GLUON CONDENSATES IN THE QUARK–MESON COUPLING MODEL [PDF]
Modern Physics Letters A, 1998 Using the quark–meson coupling (QMC) model, we study the density dependence of the quark and gluon condensates in nuclear matter. We show that the change of the quark condensate is mainly driven by the scalar field in the medium and that the reduction of the quark condensate is suppressed at high density, even in the mean-field approximation.
Saito, K., Tsushima, K., Thomas, A.
openaire +4 more sources