Axial-vector transitions and strong decays of the baryon antidecuplet in the self-consistent SU(3) chiral quark-soliton model

Abstract

We investigate the axial-vector transition constants of the baryon antidecuplet to the octet and decuplet within the framework of the self-consistent SU(3) chiral quark-soliton model. Taking into account rotational 1/N_c and linear m_s corrections and using the symmetry-conserving quantization, we calculate the axial-vector transition constants. It is found that the leading-order contributions are generally almost canceled by the rotational 1/N_c corrections. Thus, the m_s corrections turn out to be essential contributions to the axial-vector constants. The decay width of the Theta^+ to NK transition is determined to be Gamma(Theta -> NK)=0.71, MeV, based on the result of the axial-vector transition constant g_A^* (Theta -> NK)=0.05. In addition, other strong decays of the baryon antidecuplet are investigated.

arXiv comment27 pages

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Cited by in corpus (11)

• Tensor charges and form factors of SU(3) baryons in the self-consistent SU(3) chiral quark-soliton model
• Electromagnetic properties of the Delta(1232) and decuplet baryons in the self-consistent SU(3) chiral quark-soliton model
• Semileptonic hyperon decays in the self-consistent SU(3) chiral quark-soliton model
• Baryon vector and axial content up to the 7Q component
• Axial-vector form factors of the baryon decuplet with flavor SU(3) symmetry breaking
• On strange SU(3) partners of Theta+
• Evidence for a narrow N(1685) resonance in eta photoproduction off the nucleon
• Axial-vector transition form factors of the baryon octet to the baryon decuplet with flavor SU(3) symmetry breaking
• Mass splittings of the baryon decuplet and antidecuplet with the second-order flavor symmetry breakings within a chiral soliton model
• Photoproduction of the Theta^+ and its vector and axial-vector structure
• Photoproduction of Theta^+(1540,1/2^+) reexamined with new theoretical information