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

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 stati...

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Bibliographic Details
Authors: Belle Collaboration, Schnell, Gunar
Format: article
Publication Date:2021
Country:España
Institution:Universidad del País Vasco
Repository:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/52685
Online Access:http://hdl.handle.net/10810/52685
Access Level:Open access
Keyword:decay
Description
Summary: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).

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