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First measurement of target and beam-target asymmetries in the γ pto π⁰η p reaction

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arxiv 1505.07963 v1 pith:YGRCDTAI submitted 2015-05-29 nucl-ex hep-exnucl-th

First measurement of target and beam-target asymmetries in the $\gamma p\to \pi^0\eta p$ reaction

classification nucl-ex hep-exnucl-th
keywords reactionasymmetriesbeam-targetdatafirstgammaphotontarget
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

The first data on target and beam-target asymmetries for the $\gamma p\to\pi^0\eta p$ reaction at photon energies from 1050 up to 1450 MeV are presented. The measurements were performed using the Crystal Ball and TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. The general assumption that the reaction is dominated by the $\Delta 3/2^-$ amplitude is confirmed. The data are in particular sensitive to small contributions from other partial waves.

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