Search for the 4He-η bound state with WASA-at-COSY

被引：0
|
作者：
Krzemien, W. [1 ]
Smyrski, J. [1 ]
机构：
[1] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland
来源：
MESON PHYSICS AT COSY - 11 AND WASA-AT- COSY | 2007年 / 950卷
关键词：
eta-mesic nucleus; final state interaction;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We propose to search for the He-4 - eta bound state via measurement of the excitation functions for the dd -> (3)Hp pi(0), (3)Hn pi(+), (3)Hen pi(0),(3)Hep pi(-) reactions where the outgoing N - pi pairs originate from the conversion of the eta meson on a nucleon inside the He-4 nucleus. Precise determination of the profile of the expected Breit-Wigner distribution in the excitation curves will allow to determine the binding energy and the width of the He-4 - eta bound state.
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页码：265 / 267
页数：3
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