核子激发态N（1535）的奇异性质
讲座名称：
核子激发态N（1535）的奇异性质
讲座时间：
2012-06-21
讲座人：
谢聚军
形式：
校区：
兴庆校区
实践学分：
讲座内容：
报告题目： 核子激发态N（1535）的奇异性质
报告时间：6月21日（周四）16:30
报告地点：中1-3113
摘要：The near threshold phi meson production in proton-proton and pi- p collisions is studied with the assumption that the production mechanism is due to the sub-Nphi-threshold N(1535) resonance. It is shown that the contribution to the pp to pp phi reaction from the t-channel pion meson exchange is dominant. With a significant N(1535)N\phi coupling, both pp to pp phi and pi- p to n phi data are very well reproduced. The significant coupling of the N(1535) resonance to Nphi is compatible with previous indications of a large ssbar component in the quark wave function of the N(1535) resonance and may be the real origin of the significant enhancement of the phi production over the naive OZI-rule predictions.
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