000002657 001__ 2657
000002657 005__ 20210910170609.0
000002657 037__ $$aBELLE2-TALK-CONF-2021-093
000002657 041__ $$aeng
000002657 088__ $$aBELLE2-TALK-DRAFT-2021-112
000002657 100__ $$aFilippo Dattola
000002657 245__ $$ab->snunu at Belle II
000002657 260__ $$aAnomalies and Precision in the Belle II era workshop$$c2021-09-06
000002657 300__ $$amult. p
000002657 520__ $$aThis contribution illustrates a new search for the flavor-changing neutral-current decay B+→K+νν performed by the Belle II experiment at the SuperKEKB asymmetric-energy electron-positron collider. In this study, a sample corresponding to an integrated luminosity of 63 fb-1 collected at the Υ(4S) resonance and an additional sample of 9 fb-1 collected at an energy 60 MeV below the resonance are used. A novel technique, based on an inclusive tagging method and exploiting the topological features of the B+→K+νν decay, is employed and it provides a higher signal efficiency with respect to the methods used in the previous searches. Future prospects and extensions of the inclusive tagging are also illustrated.
000002657 8560_ $$fdjaffe@bnl.gov
000002657 8564_ $$uhttps://docs.belle2.org/record/2657/files/BELLE2-TALK-CONF-2021-093.pdf