Beam asymmetry $\Sigma$ measurements on the $\pi^-$ photoproduction off neutrons

G. Mandaglio; F. Mammoliti; M. Manganaro; V. Bellini; J. P. Bocquet; L. Casano; A. D'Angelo; R. Di Salvo; A. Fantini; D. Franco; G. Gervino; F. Ghio; G. Giardina; B. Girolami; A. Giusa; A. Ignatov; A. Lapik; P. Levi Sandri; A. Lleres; D. Moricciani; A. N. Mushkarenkov; V. Nedorezov; C. Randieri; D. Rebreyend; N. V. Rudnev; G. Russo; C. Schaerf; M. L. Sperduto; M. C. Sutera; A. Turinge; V. Vegna; W. J. Briscoe; I. I. Strakovsky

doi:10.1103/physrevc.82.045209

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Beam asymmetry $\Sigma$ measurements on the $\pi^-$ photoproduction off neutrons

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Abstract

The $\Sigma$ beam asymmetry in the photoproduction of negative pions from quasi-free neutrons in a deuterium target was measured at Graal in the energy interval 700 - 1500 MeV and a wide angular range, using polarized and tagged photons. The results are compared with recent partial wave analyses.

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G. Mandaglio, F. Mammoliti, M. Manganaro, V. Bellini, J. P. Bocquet, L. Casano, A. D'Angelo, R. Di Salvo, A. Fantini, D. Franco, G. Gervino, F. Ghio, G. Giardina, B. Girolami, A. Giusa, A. Ignatov, A. Lapik, P. Levi Sandri, A. Lleres, D. Moricciani, A. N. Mushkarenkov, V. Nedorezov, C. Randieri, D. Rebreyend, N. V. Rudnev, G. Russo, C. Schaerf, M. L. Sperduto, M. C. Sutera, A. Turinge, V. Vegna, W. J. Briscoe, I. I. Strakovsky. 2010-10-08. Beam asymmetry $\Sigma$ measurements on the $\pi^-$ photoproduction off neutrons. https://doi.org/10.1103/physrevc.82.045209

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