Search the decay of the B meson to two leptons at the Belle Experiment

The set of decays known as B⁰ → l⁺l⁻ are exceedingly rare. This thesis details procedures developed to optimize signal extraction and improve the upper limit on the measured branching fraction. When applied to 85 million BB events collected at the Belle experiment in Tsukuba, Japan, the resulting upper limits on branching fractions were 8.8×10⁻⁸ for B⁰ → e⁺e⁻, 1.0×10⁻⁷ for B⁰ → μ⁺μ⁻, and 8.5×10⁻⁸ for B⁰ → e±μ∓" at the 90% confidence level.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Discipline thesis:degree_discipline

Physics

Department dc:contributor.department

Physics

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

2016

Author dc:creator

• Williams, Kimberly Marie

Chair dc:contributor.committeechair

• Piilonen, Leo E.

Committee members dc:contributor.committeemember

• Pitt, Mark L.
• Simonetti, John H.
• Huber, Patrick

• B physics
• leptons
• Belle experiment

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Dc Identifier Other

vt_gsexam:7098

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/73753