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Abstract
Measurements of the angular distributions of target and double-spin asymmetries for the Δ+(1232) in the exclusive channel →p(→e,e′p)π0 obtained at the Jefferson Lab in the Q2 range from 0.5 to 1.5GeV2/c2 are presented. Results of the asymmetries are compared with the unitary isobar model [D. Drechsel et al., Nucl. Phys. A645, 145 (1999)], dynamical models [T. Sato and T. S. Lee, Phys. Rev. C 54, 2660 (1996); S. S. Kamalov et al., Phys. Lett. B 27, 522 (2001)], and the effective Lagrangian theory [R. M. Davidson et al., Phys. Rev. D 43, 71 (1991)]. Sensitivity to the different models was observed, particularly in relation to the description of background terms on which the target asymmetry depends significantly.
Original language | English |
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Pages (from-to) | 035202 |
Journal | Physical Review C: covering nuclear physics |
Volume | 68 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2003 |
Externally published | Yes |
Subject classification (UKÄ)
- Other Physics Topics
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Production of Mesons with Electromagnetic Beams
Fissum, K. (Researcher)
1988/06/01 → …
Project: Research
File -
Investigations of and with Polarized Electromagnetic Beams
Fissum, K. (Researcher)
1999/01/01 → 2018/12/31
Project: Research