New Tagging Method of B Flavor of Neutral B Meson in CP Violation Measurement in Asymmetric B-Factory Experiment

TL;DR

This paper introduces a new tagging method for neutral B mesons in CP violation experiments that uses only three charged particle vectors, improving efficiency without needing lepton or kaon identification.

Contribution

The paper presents a novel weighted charge tagging method that simplifies B flavor determination in CP violation measurements, eliminating the need for lepton or kaon identification.

Findings

Tagging efficiency of 43.1%

Incorrect tagging probability of 18.3%

Effective tagging efficiency of 17.3%

Abstract

In CP violation measurements in asymmetric B-factory experiments, a determination of the B flavor of the neutral B mesons is necessary. A new method to this purpose using only three vectors of charged particles has been developed. This method (weighted charge method) does not require either lepton identification or charged-kaon identification. The tagging efficiency, probability for incorrect tagging, and effective tagging efficiency of this method are 43.1, 18.3, and 17.3\%, respectively.