Nρρ和Δρρ三强子束缚态的研究孙宝玺 (北京工业大学) 陈华星（北京航空航天大学） E. Oset（西班牙Valencia大学）

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Presentation transcript:

Nρρ和Δρρ三强子束缚态的研究孙宝玺 (北京工业大学) 陈华星（北京航空航天大学） E. Oset（西班牙Valencia大学）孙宝玺 (北京工业大学) 陈华星（北京航空航天大学） E. Oset（西班牙Valencia大学）第14届全国核结构大会，浙江湖州 2012年4月12-16日

1. Vector-baryon decuplet interaction Content 1. Vector-baryon decuplet interaction 2. N-rho-rho system in FCA 3. Delta-rho-rho system in FCA 4. Conclusion

Vector-vector Interaction

Interaction Vertex

Anomalous Term

Anomalous Term

Bethe-Salpeter Eqution

Vector meson – baryon loop function in the dimensional regularization scheme

Vector meson-baryon loop function accounting for the width of the intermediate states

Decay modes

S=-1，I=0 Channel

S=-1，I=0 Channel

S=-1，I=1Channel

Resonance for S=-1,I=1 channel

EPJA 44, 431 (2010)

Ten resonances in the different strangeness and isospin channels Ten resonances in the different strangeness and isospin channels. Degenerate in JP=1/2-, 3/2-, 5/2-.

Vector-baryon octet interaction E. Oset and A. Ramos, EPJA 44, 445 (2010). K. P. Khemchandani, H. Kaneko, H. Nagahiro and A. Hosaka, PRD 83, 114041 (2011).

FCA of Faddeev Equation

FCA of Faddeev Equation

N-rho-rho system

Two-body N-rho interaction

S-Matrix Single scattering Double scattering General form

Three-body Amplitude

G function with Λ=875MeV

Three-body Amplitude

Decay width of f2(1270)→ππ

N-rho-rho Amplitude with f2 width

Delta-rho-rho

Two-body Delta-rho Amplitudes

3-body Amplitudes of Delta-rho-rho with decay width of f2(1270)

EPJA 47 (2011) 127 Peak around 2227MeV for N-rho-rho Peak around 2372MeV for Δ-rho-rho

Form factor of f2(1270)

Form factor of f2(1270)

Form factor of f2(1270)

Thanks