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Search for B-s(0) -> eta'Xs(s)over-bar at Belle using a semi-inclusive method
Journal article   Open access  Peer reviewed

Search for B-s(0) -> eta'Xs(s)over-bar at Belle using a semi-inclusive method

S. Dubey, T. E. Browder, H. Aihara, S. Al Said, D. M. Asner, T. Aushev, R. Ayad, Babu, S. Bahinipati, P. Behera, …
Physical review. D, Vol.104(1)
12/07/2021

Abstract

Astronomy & Astrophysics Physical Sciences Physics Physics, Particles & Fields Science & Technology
We report the first search for the penguin-dominated process B-s(0) -> eta'X(s ()s() over bar) using a semi-inclusive method. A 121.4 fb-1 integrated luminosity gamma(5S) data set collected by the Belle experiment, at the KEKB asymmetric-energy e(+)e(-) collider, is used. We observe no statistically significant signal and, including all uncertainties, we set a 90% confidence level upper limit on the partial branching fraction at 1.4 x 10(-3) for M(X-s (s) over bar) <= 2.4 GeV/c(2).
url
https://doi.org/10.1103/PhysRevD.104.012007View
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