GPDs and spin effects in light mesons production. - IPN
GPDs and spin effects in light mesons production. - IPN
GPDs and spin effects in light mesons production. - IPN
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Sp<strong>in</strong> density matrix elements-ρ <strong>production</strong> at energies from<br />
HERMES to HERA<br />
0.7<br />
<br />
<br />
0.3<br />
<br />
<br />
-0.1<br />
<br />
<br />
0.6<br />
0.5<br />
0.2<br />
-0.2<br />
0.4<br />
3 4 5 6 7 8<br />
0.1<br />
3 4 5 6 7 8<br />
-0.3<br />
3 4 5 6 7 8<br />
0.22<br />
0.20<br />
0.18<br />
0.16<br />
0.14<br />
0.12<br />
<br />
<br />
3 4 5 6 7 8<br />
-0.12<br />
-0.14<br />
-0.16<br />
-0.18<br />
-0.20<br />
-0.22<br />
<br />
<br />
3 4 5 6 7 8<br />
The SDME sensitive to LL <strong>and</strong> TT transitions via Q 2 .<br />
Blue- HERA , red- COMPASS , black- HERMES.<br />
Open diamond- COMPASS, filled circles- HERMES.
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