Low Energy Pion-Hyperon Interaction

A. Morelos; A. N. Kammal; A. Pais; B. Andersson; B. C. Pearce; B. R. Martin; C. C. Barros; C. Caso; C. Wilkinson; D. Bonfinger; F. Gross; G. Bunce; H. Pilkuhn; H. T. Coelho; J. Soffer; K. Heller; K. Kubo; M. Anselmino; M. G. Olsson; M. L. Perl; P. F. A. Goudsmit; P. J. Ellis; P. M. Ho; R. Nath; R. Ramerika; S. M. Troshin; S. Okubo; T. A. DeGrand; Y. Hama; Y. Hama; Y. Kitsukawa; Y. Yamamoto

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Low Energy Pion-Hyperon Interaction

Authors: A. Morelos
A. N. Kammal
A. Pais
B. Andersson
B. C. Pearce
B. R. Martin
C. C. Barros
C. Caso
C. Wilkinson
D. Bonfinger
F. Gross
G. Bunce
H. Pilkuhn
H. T. Coelho
J. Soffer
K. Heller
K. Kubo
M. Anselmino
M. G. Olsson
M. L. Perl
P. F. A. Goudsmit
P. J. Ellis
P. M. Ho
R. Nath
R. Ramerika
S. M. Troshin
S. Okubo
T. A. DeGrand
Y. Hama
Y. Hama
Y. Kitsukawa
Y. Yamamoto
Publication date: 16 February 2001
Publisher: 'American Physical Society (APS)'
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Abstract

We study the low energy pion-hyperon interaction considering effective non-linear chiral invariant Lagrangians including pions, rho mesons, hyperons and corresponding resonances. Then we calculate the S- and P-wave phase-shifts, total cross sections, angular distributions and polarizations for the momentum in the center-of-mass frame up to k=400 MeV. With these results we discuss the CP violation in the csi-> pi-lambda and omega-> pi-csi weak decays.Comment: 10 pages, 10 figure

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