Mechanism for the double-spin asymmetry in electromagnetic rho production at HERMES

6533b826fe1ef96bd128495b

RESEARCH PRODUCT

Mechanism for the double-spin asymmetry in electromagnetic rho production at HERMES

Dong-pil Min Nikolai Kochelev Vicente Vento Andrey V. Vinnikov

subject

Physics Nuclear and High Energy Physics Particle physics Meson production Meson media_common.quotation_subject Nuclear Theory High Energy Physics::Phenomenology Física Parity (physics)Asymmetry Polarized target Nuclear physics High Energy Physics - Phenomenology Pomeron High Energy Physics::Experiment media_common

description

We calculate the contribution of meson and pomeron exchanges to the double-spin asymmetry in $\rho$-meson electromagnetic production at HERMES energies. We show that the observed double-spin asymmetries, which are large, can be explained by the interference between the natural parity $f_2$-secondary Reggeon and the unnatural parity anomalous $f_1$ exchanges.

year	journal	country	edition	language
2001-12-21

10.1103/physrevd.65.097504 http://hdl.handle.net/10550/43712

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