ep - p h / 98 03 42 9 v 1 2 3 M ar 1 99 8 Masses , Magnetic Moments , and Semileptonic Decays of Spin 1 / 2 Baryons with Sea Contribution
نویسندگان
چکیده
The spin 1/2 baryons are pictured as a composite system made out of a " core " of three valence quarks (as in the simple quark model) surrounded by a " sea " (of gluon and q ¯ q pairs) which is specified by its total quantum numbers. We assume the sea is a SU (3) flavor octet with spin 0 or 1 but no color. This model, considered earlier, is used to obtain simultaneous fits for masses, magnetic moments and G A /G V for semileptonic decays. These fits give predictions for nucleon spin distributions in reasonable agreement with experiment.
منابع مشابه
M ar 1 99 8 Semileptonic decays , magnetic moments and spin distributions of spin - 1 / 2 baryons with sea contribution
Spin-1/2 baryons are considered as a composite system made out of a " core " of three quarks surrounded by a " sea " (of gluons and q ¯ q-pairs) which is specified by its total quantum numbers. Specifically, we assume this sea to be a flavor octet with spin-0 or 1 but no color. We show our model can provide very goods fits to magnetic moments and semileptonic decay data using experimental error...
متن کاملar X iv : h ep - p h / 96 03 25 4 v 1 9 M ar 1 99 6 Sea contributions to spin 1 / 2 baryon structure and magnetic moments
We treat the baryon as a composite system made out of a " core " of three quarks (as in the standard quark model) surrounded by a " sea " (of gluons and q ¯ q-pairs) which is specified by its total quantum numbers like flavor, spin and color. Specifically, we assume the sea to be a flavor octet with spin 0 but no color. The general wavefunction for spin 1/2 baryons with such a sea component is ...
متن کاملar X iv : h ep - p h / 96 03 25 2 v 1 8 M ar 1 99 6 Sea contributions to spin 1 / 2 baryon structure , magnetic moments , and spin distribution
We treat the baryon as a composite system made out of a " core " of three quarks (as in the standard quark model) surrounded by a " sea " (of gluons and q ¯ q-pairs) which is specified by its total quantum numbers like flavor, spin and color. Specifically, we assume the sea to be a flavor octet with spin 0 or 1 but no color. The general wavefunction for spin 1/2 baryons with such a sea componen...
متن کاملar X iv : h ep - p h / 96 03 25 2 v 2 4 M ay 1 99 6 Sea contributions to spin 1 / 2 baryon structure , magnetic moments , and spin distribution
We treat the baryon as a composite system made out of a " core " of three quarks (as in the standard quark model) surrounded by a " sea " (of gluons and q ¯ q-pairs) which is specified by its total quantum numbers like flavor, spin and color. Specifically, we assume the sea to be a flavor octet with spin 0 or 1 but no color. The general wavefunction for spin 1/2 baryons with such a sea componen...
متن کاملar X iv : h ep - p h / 03 08 31 0 v 1 2 9 A ug 2 00 3 1 Ground State Baryons in Covariant Level - Classification Scheme
O(3, 1)L symmetry, the ground state baryons and antibaryons are assigned to the (12× 12× 12)Sym = 364-multiplet in the spin-flavor Ũ(12)SF symmetry. This multiplet includes, in addition to the ordinary 56-multiplet of the static SU(6)SF , the extra chiral 56 ′ and 70-multiplets, called “chiralons,” which are expected to exist with masses in 1 ∼ 2 GeV region. Their electro-magnetic properties, m...
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تاریخ انتشار 1998