Study of two body hadronic decaysΛb→Λ(p)P(V)in the instantaneous approximation of the Bethe-Salpeter equation approach

2015 ◽  
Vol 91 (1) ◽  
Author(s):  
Y. Liu ◽  
X.-H. Guo ◽  
C. Wang
2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Zhen-Yang Wang ◽  
Jing-Juan Qi ◽  
Xin-Heng Guo

In this work, we study the BK¯ molecule in the Bethe-Salpeter (BS) equation approach. With the kernel containing one-particle-exchange diagrams and introducing two different form factors (monopole form factor and dipole form factor) in the vertex, we solve the BS equation numerically in the covariant instantaneous approximation. We investigate the isoscalar and isovector BK¯ systems, and we find that X5568 cannot be a BK¯ molecule.


1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1847-C8-1848
Author(s):  
G. A. R. Martin ◽  
A. Bradbury ◽  
R. W. Chantrell

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