ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2016, vol. 93, 3, p. -
Search for B0 →π-τ+ντ with hadronic tagging at Belle
© 2016 American Physical Society.We search for the process B0→π-τ+ντ using the full Belle data set of 711 fb-1, corresponding to 772×106BB¯ pairs, collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We reconstruct one B meson in a hadronic decay and search for the B0→π-τ+ντ process in the remainder of the event. No significant signal is observed and an upper limit of B(B0→π-τ+ντ)<2.5×10-4 is obtained at the 90% confidence level.