Observation of the Decay Xi^0 --> Sigma^+ mu^- nu(bar)
High Energy Physics - Experiment
2008-11-26 v2
Abstract
The Xi^0 muon semi-leptonic decay has been observed for the first time with nine identified events using the KTeV beam line and detector at Fermilab. The decay is normalized to the Xi^0 beta decay mode and yields a value for the ratio of decay rates of . This is in agreement with the SU(3) flavor symmetric quark model.
Cite
@article{arxiv.hep-ex/0504055,
title = {Observation of the Decay Xi^0 --> Sigma^+ mu^- nu(bar)},
author = {KTeV Collaboration and E. Abouzaid and T. Alexopoulos and M. Arenton and R. F. Barbosa and A. R. Barker and L. Bellantoni and A. Bellavance and E. Blucher and G. J. Bock and E. Cheu and R. Coleman and M. D. Corcoran and B. Cox and A. R. Erwin and C. O. Escobar and A. Glazov and A. Golossanov and R. A. Gomes and P. Gouffon and K. Hanagaki and Y. B. Hsiung and H. Huang and D. A. Jensen and R. Kessler and K. Kotera and J. LaDue and A. Ledovskoy and P. L. McBride and E. Monnier and K. S. Nelson and H. Nguyen and R. Niclasen and H. Ping and V. Prasad and X. R. Qi and E. J. Ramberg and R. E. Ray and M. Ronquest and E. Santos and J. Shields and W. Slater and D. Smith and N. Solomey and E. C. Swallow and P. A. Toale and R. Tschirhart and C. Velissaris and Y. W. Wah and J. Wang and H. B. White and J. Whitmore and M. Wilking and B. Winstein and R. Winston and E. T. Worcester and M. Worcester and T. Yamanaka and E. D. Zimmerman and R. F. Zukanovich},
journal= {arXiv preprint arXiv:hep-ex/0504055},
year = {2008}
}
Comments
4 pages, 4 figures; changed authors list, figure added