Magnetic moments of octet baryons are parameterized to all orders of the flavor SU （3） breaking with the irreducible tensor technique in order to extract the contribution of each flavor quark to the magnetic moments...Magnetic moments of octet baryons are parameterized to all orders of the flavor SU （3） breaking with the irreducible tensor technique in order to extract the contribution of each flavor quark to the magnetic moments of the octet baryons. The not-yet measured magnetic moment of Σ 0 is predicted to be 0.649 μ N . Our parameterized forms for the magnetic moments are explicitly f lavor-dependent, and hence each flavor component of the magnetic moments can be evaluated directly via the flavor projection operator. It is found that the strange magnetic moment of the nucleon is suppressed due to the small isoscalar anomalous magnetic moment of the nucleon. In particular, the strange magnetic form factor of the nucleon turns out to be positive, G （s） N （0） = 0.428 μ N , which is consistent with recent data.展开更多
文摘Magnetic moments of octet baryons are parameterized to all orders of the flavor SU （3） breaking with the irreducible tensor technique in order to extract the contribution of each flavor quark to the magnetic moments of the octet baryons. The not-yet measured magnetic moment of Σ 0 is predicted to be 0.649 μ N . Our parameterized forms for the magnetic moments are explicitly f lavor-dependent, and hence each flavor component of the magnetic moments can be evaluated directly via the flavor projection operator. It is found that the strange magnetic moment of the nucleon is suppressed due to the small isoscalar anomalous magnetic moment of the nucleon. In particular, the strange magnetic form factor of the nucleon turns out to be positive, G （s） N （0） = 0.428 μ N , which is consistent with recent data.
