Baryon vector and axial content up to the 7Q component

Abstract

We have used the light-cone formulation of Chiral-Quark Soliton Model to investigate the vector and axial content of octet, decuplet and the hypothetical antidecuplet in the flavor SU(3) symmetry limit. We have extended previous works by computing the 7Q contribution to vector and axial charges for the octet and antidecuplet but stayed at the 5Q sector for the decuplet where the full computation needs much more time. As expected the 7Q component has a weaker impact on the quantities but still changes them by a few percent. We give also a detailed decomposition of those charges into flavor, valence quark, sea quark and antiquark contributions. Many of them are of course not (yet) measured or estimated and constitute then a theoretical estimation. Among the different interesting observations made in this work are the explicit quadrupole deformation of decuplet baryons due to the pion field and the sum of quark spins larger than the pentaquark one.

34 pages, 7 figures and 17 tables, revised and more explicit version

References in corpus (23)

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• The Cosmological Parameters 2006
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• Baryons as non-topological chiral solitons
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Cited by in corpus (17)

• Quark Wigner Distributions and Orbital Angular Momentum
• The quark orbital angular momentum from Wigner distributions and light-cone wave functions
• On the Origin of Model Relations among Transverse-Momentum Dependent Parton Distributions
• Wigner distributions and orbital angular momentum of a proton
• Quark Wigner distributions and spin-spin correlations
• Electromagnetic properties of the Delta(1232) and decuplet baryons in the self-consistent SU(3) chiral quark-soliton model
• Tensor charges of light baryons in the Infinite Momentum Frame
• Axial form factors of the octet baryons in a covariant quark model
• Semileptonic hyperon decays in the self-consistent SU(3) chiral quark-soliton model
• Quark spin content of SU(3) light and singly heavy baryons
• Wigner distributions and quark orbital angular momentum
• Investigations on the flavor-dependent axial charges of the octet baryons
• Exotic and Non-Exotic Baryon Properties on the Light Cone
• T-odd Wigner Distributions in boost-invariant longitudinal position space and Spin-momentum correlation in proton
• Spin structure of the nucleon on the light front
• Light-front transverse charge densities
• Light-cone distribution amplitudes of the nucleon and $\Delta$ baryon