Results 61 to 70 of about 20,648,949 (270)
RELATIVISTIC QUARK MODELS [PDF]
, 2001 The application of relativistic constituent quark models to the evaluation of the electromagnetic properties of the nucleon and its resonances is addressed. The role of the pair creation process in the Feynmann triangle diagram is discussed and the importance both of choosing the light-front formalism and of using a Breit frame where the plus component
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Models of the quark mixing matrix [PDF]
Physical Review D, 1992 Presented by Mihir P. Worah at DPF 92 Meeting, Fermilab, November, 1992.
Mihir P. Worah, Jonathan L. Rosner
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Wigner distributions for gluons in a light-front dressed quark model [PDF]
, 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
Unquenching the Quark Model in a Nonperturbative Scheme
Advances in High Energy Physics, 2019 In recent years, the discovery in quarkonium spectrum of several states not predicted by the naive quark model has awakened a lot of interest. A possible description of such states requires the enlargement of the quark model by introducing quark ...
Pablo G. Ortega +2 more
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Phases of Hadron-Quark Matter in (Proto) Neutron Stars
Universe, 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
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Heavy mesons in the Quark Model [PDF]
EPJ Web of Conferences, 2019 Since the discovery of theJ/ψ, the quark model was very successful in describing the spectrum and properties of heavy mesons including only q̄ components. However since 2003, with the discovery of theX(3872), many states that can not be accommodated on the naive quark model have been discovered, and they made unavoidable to include higher Fock ...
Entem, D.R. +3 more
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Quantum Anomalies in Condensed Matter
Advanced Physics Research, EarlyView.Quantum materials provide a fertile ground in which to test and realize quantum anomalies predicted by quantum field theory. Quantum anomalies need to be canceled globally, however, quantum states with a quantum anomaly can exist at the boundary of topological materials.
Michael T. Pettes +11 more
wiley +1 more source
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
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Astronomische Nachrichten, EarlyView.ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
wiley +1 more source
Spectroscopy of higher bottomonia
EPJ 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.
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