Document Type
Article
Publication Date
7-20-1992
Abstract
The branching ratio for the Λ weak radiative decay has been measured to be B(Λ→n+γ)/(Λ→anything) =[1.78±0.24(stat)±0.160.14(syst)]×10-3. A low-energy kaon beam was used to produce the Λ hyperons via the reaction K-+p→Λ+π0 at rest. Photons from the signal channel and π0 decay were detected with a NaI(Tl) array. The final spectrum contains 287 events after background subtraction, an order of magnitude more events than from the only previous measurement.
Publication Title
Physical Review Letters
Rights
©1992 American Physical Society
Recommended Citation
A. J. Noble, K. D. Larson, B. Bassalleck, W. J. Fickinger, J. R. Hall, A. L. Hallin, M. D. Hasinoff, D. Horváth, J. Lowe, E. K. McIntyre, D. F. Measday, J. P. Miller, B. L. Roberts, D. K. Robinson, M. Sakitt, M. Salomon, C. E. Waltham, T. M. Warner, D. A. Whitehouse, and D. M. Wolfe. Measurement of the Λ→n+γ branching ratio. Phys. Rev. Lett. 69, 414, 20 July 1992