The Last Meson

8/10/98


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Table of Contents

The Last Meson

PPT Slide

Meson Milestones

“Periodic Table” for Mesons

“Periodic Table for Baryons

Flavorless Quarkonium

Bc - Flavorful Quarkonium

Non-Relativistic Potential Model

Bc Mass

HadroProduction of Bc

Fragmentation: b ® Bc

Bc Decay

t(Bc) Predictions

CDF Detector

Bc Analysis Team

Strategy

Event Properties

Event Selection: J/y

Selection: J/y+track

Selection: Bc®J/y e

Electron Backgrounds

Selection: Bc®J/y m

Backgrounds

Muon Backgrounds

Decay-in-flight Background

Electron Backgrounds

False e Probability

Conversion Background

Background: BB

Summary Mass Plots

The Counting Experiment

Likelihood Fit

Mass Fit: Combined Channels

Likelihood vs. N(Bc)

Likelihood Distribution

Test Null Hypothesis

The Bc Mass

Measure M(Bc)

The Bc Lifetime

Strategy for Lifetime

Background shapes in ct*

Lifetime Fits: e and m

Liftime Fit: Both Channels

Likelihood vs. ct

Lifetime: Pseudo-Experiments

Bc Production

Other Bc Searches

Test Against Predictions

Author: Thomas Devlin

Home Page: http://www.physics.rutgers.edu/~devlin

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