Λc+, Σc, and Λb hypernuclei in the quark-meson coupling model

被引:41
|
作者
Tsushima, K
Khanna, FC
机构
[1] Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil
[2] FCBEE, Mackenzie Univ, BR-01302907 Sao Paulo, Brazil
[3] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada
[4] TRIUMF, Vancouver, BC V6T 2A3, Canada
关键词
D O I
10.1088/0954-3899/30/12/001
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Charmed (and bottom) hypernuclei are studied in the quark-meson coupling (QMC) model. This completes systematic studies of charmed (Lambda(c)(+), Sigma(c), Xi(c)), and Lambda(b) hypernuclei in the QMC model. Effects of the Pauli blocking due to the underlying quark structure of baryons, and the Sigma(c)N-Lambda(c)N channel coupling are phenomenologically taken into account at the hadronic level in the same way as those included for strange hypernuclei. Our results suggest that the Sigma(c)(++) and Xi(c)(+) hypernuclei are very unlikely to be formed. while the Lambda(c)(+), Xi(c)(0) and Lambda(b) hypernuclei are quite likely to be formed. For the Sigma(c)(+) hypernuclei, the formation probability is non-zero, though small. A detailed analysis is also made about the phenomenologically introduced Pauli blocking and channel coupling effects for the Sigma(c)(0) hypernuclei.
引用
收藏
页码:1765 / 1786
页数:22
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