Results 211 to 220 of about 17,152 (246)
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AIP Conference Proceedings, 2002
Chiral quark models are briefly sketched. Then the main question is addressed: Are chiral quark models consistent with the proton spin data? The proton spin fractions of the nonrelativistic quark model (NQM) are improved by chiral field theory. Such chiral models agree with the proton spin data only because the chiral quark‐Goldstone boson couplings ...
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Chiral quark models are briefly sketched. Then the main question is addressed: Are chiral quark models consistent with the proton spin data? The proton spin fractions of the nonrelativistic quark model (NQM) are improved by chiral field theory. Such chiral models agree with the proton spin data only because the chiral quark‐Goldstone boson couplings ...
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Nuclear Physics A, 2000
Abstract The quark-meson hybrid model, in which the quark cluster model for baryon- baryon interactions is supplemented with meson-exchange contributions, is briefly reviewed. Some arguments are given that such a hybrid picture provides us with a simple and efficient way of describing single- and two- baryon systems.
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Abstract The quark-meson hybrid model, in which the quark cluster model for baryon- baryon interactions is supplemented with meson-exchange contributions, is briefly reviewed. Some arguments are given that such a hybrid picture provides us with a simple and efficient way of describing single- and two- baryon systems.
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Physical Review D, 1978
In this paper we report attempts to create simple nonrelativistic potential models of hadrons which have the following properties: hadrons are made of quarks; free quarks do not exist; free hadrons do exist. Models with these properties can be formulated, but none of those so far considered is free from the problem of long-range residual interactions ...
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In this paper we report attempts to create simple nonrelativistic potential models of hadrons which have the following properties: hadrons are made of quarks; free quarks do not exist; free hadrons do exist. Models with these properties can be formulated, but none of those so far considered is free from the problem of long-range residual interactions ...
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Antibody–drug conjugates: Smart chemotherapy delivery across tumor histologies
Ca-A Cancer Journal for Clinicians, 2022Paolo Tarantino +2 more
exaly
Il Nuovo Cimento A, 1969
A generalized quark model that is based on a tower of quarks with all possible spins and parities is suggested. It can accommodate two 2++ resonances at about the same energy and still continue to have some important characteristics of the usual quark model.
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A generalized quark model that is based on a tower of quarks with all possible spins and parities is suggested. It can accommodate two 2++ resonances at about the same energy and still continue to have some important characteristics of the usual quark model.
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2019
Abstract This chapter presents the quark model of hadrons. It discusses the quark description of the quark antiquark systems of c and b quarks. It then describes the structure of the lightest mesons and baryons as bound states of u, d, and s quarks.
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Abstract This chapter presents the quark model of hadrons. It discusses the quark description of the quark antiquark systems of c and b quarks. It then describes the structure of the lightest mesons and baryons as bound states of u, d, and s quarks.
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An overview of real‐world data sources for oncology and considerations for research
Ca-A Cancer Journal for Clinicians, 2022Lynne Penberthy +2 more
exaly
1971
Our first observation was that our bootstrap condition implied, for the scattering of S U (3) q¯q-compounds, a degeneracy of the exchange degenerate q - f, ω - A2 trajectories. This conclusion holds for a large variety of dynamical models and remained to hold when S U (3) was broken.
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Our first observation was that our bootstrap condition implied, for the scattering of S U (3) q¯q-compounds, a degeneracy of the exchange degenerate q - f, ω - A2 trajectories. This conclusion holds for a large variety of dynamical models and remained to hold when S U (3) was broken.
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The biofilm life cycle: expanding the conceptual model of biofilm formation
Nature Reviews Microbiology, 2022Karin Sauer +2 more
exaly