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The Form Factors of the Nucleons: Present Status - Fisica

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<strong>The</strong> proton is not spherical?<br />

Not a crisis, but an unexpected consequence <strong>of</strong> fast<br />

decreasing G E/G M “a la Gerry Miller”.<br />

Shape <strong>of</strong> <strong>the</strong> proton: spin dependent quark density; depends<br />

upon angle between spin <strong>of</strong> 1 quark relative to nucleon spin.<br />

Direct consequence <strong>of</strong> apparent scaling <strong>of</strong> QF 2/F 1.<br />

G.A. Miller, PR C 68:022201(2003)<br />

2/17/2013 C.F. Perdrisat SAEMP Trento 2013 25

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