Evidence of N*(1535) resonance contribution in the pn{yields}d{phi} reaction

Journal Article · Sat Aug 15 00:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.025203· OSTI ID:21290081

Xu, Cao ^[1]; Jujun, Xie ^[2]; Bingsong, Zou ^[3]; Hushan, Xu ^[1]

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1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)
2. Department of Physics, Zhengzhou University, Zhengzhou Henan 450052 (China)
3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)

The N*(1535) resonance contributions to the pn{yields}d{phi} reaction are evaluated in an effective Lagrangian model. The {pi}-, {eta}-, and {rho}-meson exchange are considered. It is shown that the contributions from {pi}- and {rho}-meson exchange are dominant, while the contribution from {eta}-meson exchange is negligibly small. Our theoretical results reproduce the experimental data of both total cross section and angular distribution well. This is more evidence that the N*(1535) resonance has a large ss component leading to a large coupling to N{phi}, which may be the real origin of the Okubo-Zweig-Iizuka rule violation in the {pi}N and pN reactions.

• OSTI ID: 21290081
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 80, Issue 2; Other Information: DOI: 10.1103/PhysRevC.80.025203; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BOSON-EXCHANGE MODELS
COUPLING
ETA MESONS
LAGRANGIAN FUNCTION
N-1535 BARYONS
NEUTRONS
NUCLEON-NUCLEON INTERACTIONS
PROTONS
RESONANCE
TOTAL CROSS SECTIONS