Missing Energy B Decays at the Belle II Experiment

Mario Merola, BELLE II collaboration
2018 Proceedings of The International Conference on B-Physics at Frontier Machines — PoS(BEAUTY2018)   unpublished
The Belle II experiment at the SuperKEKB collider is a major upgrade of the KEK "B factory" facility in Tsukuba, Japan. The machine is designed to produce an instantaneous luminosity of 8×10 35 cm −2 s −1 , and the experiment is expected to accumulate a data sample of about 50 ab −1 . With this amount of data, decays sensitive to physics beyond the Standard Model can be studied with unprecedented precision. One promising set of modes are physics processes with missing energy due to a neutrino
more » ... due to a neutrino in the final state, such as the semileptonic and leptonic B meson decays B → X u ν, B → D ( ) τν, and B → ν(γ). In addition, the rare decay B → K ( * ) νν provides one of the cleanest experimental probes of the favour-changing neutral current process b → sνν. This report discusses the expected sensitivities of the Belle II data sample to these decays.
doi:10.22323/1.326.0030 fatcat:s6qzdb5txfazdgvswhyd3cw3gu