pi Lambda scattering phase shifts and CP violation in Xi ---> pi Lambda decay
Jan, 19989 pages
Published in:
- Phys.Rev.D 58 (1998) 077501
e-Print:
- hep-ph/9801349 [hep-ph]
Report number:
- ALBERTA-THY-02-98
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Abstract:
CP-violating signals in weak decay require the knowledge of - and -wave scattering phases at center-of-mass energy. We have calculated these phases in baryon chiral perturbation theory with the ground-state in and channels and in the channel. We do not treat the baryons as heavy. We find and with the central value of the strong coupling parameter . We also investigate the variation of the scattering phases as functions of the parameter . We compare this result with previous calculations, and discuss its relevance to CP-asymmetry parameters.Note:
- Numerical errors corrected. As a result, conclusions change
- Xi: hadronic decay
- CP: violation
- meson baryon: elastic scattering
- pi
- Lambda
- partial wave analysis
- perturbation theory: chiral
- Sigma
- Sigma(1385)
- Feynman graph
References(13)
Figures(1)