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E906/SeaQuest Drell-Yan Experiment - Brookhaven National ...

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20<br />

u =<br />

Is in the proton?<br />

Gottfried Sum Rule<br />

1<br />

S = [( F ( x) − F ( x)) / x] dx<br />

G<br />

d<br />

∫<br />

0<br />

=<br />

p n<br />

2 2<br />

1 2 1<br />

= + ∫ ( u ( ) ( ))<br />

3 3 0<br />

p x − dp<br />

x dx<br />

1<br />

= ( ifup<br />

= dp)<br />

3

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