We report on the observation of (Formula presented) decays. The branching ratio is (Formula presented) Interest in this particular mode was sparked by Ligeti, Luke and Wise who propose it as a way to check the validity of factorization tests in (Formula presented) decays.

Additional Metadata
Persistent URL dx.doi.org/10.1103/PhysRevD.65.012002
Journal Physical Review D - Particles, Fields, Gravitation and Cosmology
Citation
Edwards, K.W, Sadoff, A.J. (A. J.), Ammar, R. (R.), Bean, A. (A.), Besson, D. (D.), Zhao, X. (X.), … Williams, J. (J.). (2002). First observation of [Formula Presented] decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 65(1). doi:10.1103/PhysRevD.65.012002