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Teaching Modern Physics - QuarkNet - Fermilab

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1<br />

Z Boson Mass Reconstruction for DØ Events<br />

Student 2D-Version 2<br />

Event #1 µ1 µ2<br />

ϕ<br />

P 51.9 GeV 48.7 GeV<br />

2<br />

Event #3 µ1 µ2<br />

ϕ<br />

P 45.6 GeV 45.3 GeV<br />

Mass: Mass:<br />

y y<br />

y<br />

2<br />

x x<br />

146<br />

Event #2 µ1 µ2<br />

ϕ<br />

P 56.7 GeV 53.6 GeV<br />

Mass: Mass:<br />

1 1<br />

x x<br />

y<br />

Event #4 µ1 µ2<br />

ϕ<br />

P 47.2 GeV 42.3 GeV<br />

1<br />

2<br />

2

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