Measurement of the branching ratio and asymmetry of the decay Ξ° → σ°γ

A. Alavi-Harati, T. Alexopoulos, M. Arenton, K. Arisaka, S. Averitte, A. R. Barker, L. Bellantoni, A. Bellavance, J. Belz, R. Ben-David, D. R. Bergman, E. Blucher, G. J. Bock, C. Bown, S. Bright, E. Cheu, S. Childress, R. Coleman, M. D. Corcoran, G. CortiB. Cox, M. B. Crisler, A. R. Erwin, R. Ford, A. Glazov, A. Golossanov, G. Graham, J. Graham, K. Hagan, E. Halkiadakis, J. Hamm, K. Hanagaki, S. Hidaka, Y. B. Hsiung, V. Jejer, D. A. Jensen, R. Kessler, H. G.E. Kobrak, J. Ladue, A. Lath, A. Ledovskoy, P. L. McBride, P. Mikelsons, E. Monnier, T. Nakaya, K. S. Nelson, H. Nguyen, V. O'Dell, M. Pang, R. Pordes, V. Prasad, B. Quinn, E. J. Ramberg, R. E. Ray, A. Roodman, M. Sadamoto, S. Schnetzer, K. Senyo, P. Shanahan, P. S. Shawhan, J. Shields, W. Slater, N. Solomey, S. V. Somalwar, R. L. Stone, I. Suzuki, E. C. Swallow, S. A. Taegar, R. J. Tesarek, G. B. Thomson, P. A. Toale, A. Tripathi, R. Tschirhart, S. E. Turner, Y. W. Wah, J. Wang, H. B. White, J. Whitmore, B. Winstein, R. Winston, T. Yamanaka, E. D. Zimmerman

Research output: Contribution to journalArticle

15 Scopus citations


The branching ratios and assymetry of the weak radiative hyperon decay are analyzed. The distinguishing characteristics between the signal and normalization decay modes are found in the invariant masses between pairs of the final state particles. The two largest systematic effects on the calculation of the branching ratio are background and acceptance uncertainties.

Original languageEnglish (US)
Pages (from-to)3239-3243
Number of pages5
JournalPhysical review letters
Issue number15
StatePublished - Apr 9 2001
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Alavi-Harati, A., Alexopoulos, T., Arenton, M., Arisaka, K., Averitte, S., Barker, A. R., Bellantoni, L., Bellavance, A., Belz, J., Ben-David, R., Bergman, D. R., Blucher, E., Bock, G. J., Bown, C., Bright, S., Cheu, E., Childress, S., Coleman, R., Corcoran, M. D., ... Zimmerman, E. D. (2001). Measurement of the branching ratio and asymmetry of the decay Ξ° → σ°γ. Physical review letters, 86(15), 3239-3243.