flav-io/flavio

Factor 2 in the upper limit for Br(B0->Knunu)?

bednya opened this issue · 3 comments

Hi,

I was comparing the upper limits in measurements.yaml with Belle'2017 measurments

and found that BR(B0->Knunu) upper limit here

limit: 2.6e-5

is a factor 2 larger than given in Table 2 (2 row, 3 column):
https://journals.aps.org/prd/pdf/10.1103/PhysRevD.97.099902

Any special reason for this or it is just a misprint?

Belle only measures Kshort. They are missing the other half. The theoretical calcuation contains both.

(I mean, could measure. Obviously, they are not measuring anything yet.)

David, thanks a lot for the clarification!