Results 91 to 100 of about 38,607,398 (267)
A 4 modular flavour model of quark mass hierarchies close to the fixed point τ = i∞
Journal 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
Constituent Quark Model Description of Charmonium Phenomenology [PDF]
, 2013 We review how quark models are able to describe the phenomenology of the charm meson sector. The spectroscopy and decays of charmonium and open charm mesons are described in a particular quark model and compared with the data and the results of other ...
J. Segovia +3 more
semanticscholar +1 more source
Study of the Ground-State Energies of Some Nuclei Using Hybrid Model
Advances 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
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Light-front quark model consistent with Drell-Yan-West duality and quark counting rules [PDF]
, 2013 We propose a phenomenological light-front wave function for hadrons with arbitrary twist-dimension (mesons, baryons and multiquark states), which gives the correct scaling behavior of structure functions (parton distributions) and form factors for pions ...
T. Gutsche +3 more
semanticscholar +1 more source
Nature's Complexity Alive: Farewell to Several Unificatory Cosmological Arguments for Monism
Noûs, EarlyView.ABSTRACT Throughout history, numerous thinkers have claimed that monism—in the form of priority monism, existence monism, monotheistic monism, or versions that posit an extra‐cosmic ultimate being—theoretically surpasses pluralism, above all by positing a unified universe.
Lok‐Chi Chan
wiley +1 more source
In this chapter we give a pedagogical introduction to the constituent quark model. The explanation of magnetic moments of the nucleons was crucial to introduce an effective quark mass for light quarks that nowadays are understood as an effect of Spontaneous Chiral Symmetry Breaking in QCD.
Entem, D. R. +3 more
openaire +2 more sources
Experimental Physiology, EarlyView.Abstract Stability in cerebral oxygen extraction fraction (OEF) is typically determined by alterations in cerebral blood flow (CBF). At rest, arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$) and OEF exhibit a strong inverse relationship owing to the powerful influence of PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$
L. Madden Brewster +11 more
wiley +1 more source
Quark Models and Quark Phenomenology
, 1997 Invited Talk at Third Symposium on the History of Particle Physics, 20 ...
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Systematic study of longitudinal and transverse helicity amplitudes in the hypercentral constituent quark model [PDF]
, 2012 We report in a systematic way the predictions of the non-relativistic hypercentral Constituent Quark model for the electromagnetic excitations of baryon resonances.
E. Santopinto, M. Giannini
semanticscholar +1 more source
Experimental Physiology, EarlyView.Abstract Exercise and heat stress have been reported to independently provide benefits to brain health. We tested the hypothesis that 8 weeks of post‐exercise local heating, passive local heating only, or exercise training only improves cognitive performance compared to a control group.
Jem L. Cheng +6 more
wiley +1 more source