Measurement of Σ beam asymmetry in π⁰ photoproduction off the neutron in the second and third resonances region

R. Di Salvo, A. Fantini, G. Mandaglio, F. Mammoliti, O. Bartalini, V. Bellini, J. P. Bocquet, L. Casano, A. D'angelo, J. P. Didelez, D. Franco, G. Gervino, F. Ghio, G. Giardina, B. Girolami, A. Giusa, M. Guidal, E. Hourany, R. Kunne, A. LapikP. Levi Sandri, A. Lleres, M. Manganaro, D. Moricciani, A. N. Mushkarenkov, V. Nedorezov, C. Randieri, D. Rebreyend, N. Rudnev, G. Russo, C. Schaerf, M. L. Sperduto, M. C. Sutera, A. Turinge, V. Vegna, A. Fix, S. S. Kamalov, L. Tiator

Research School of High-Energy Physics

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29 Citations (Scopus)

Abstract

The Σ beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.

Original language	English
Pages (from-to)	151-157
Number of pages	7
Journal	European Physical Journal A
Volume	42
Issue number	2
DOIs	https://doi.org/10.1140/epja/i2009-10870-x
Publication status	Published - Nov 2009

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ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

Di Salvo, R., Fantini, A., Mandaglio, G., Mammoliti, F., Bartalini, O., Bellini, V., ... Tiator, L. (2009). Measurement of Σ beam asymmetry in π⁰ photoproduction off the neutron in the second and third resonances region. European Physical Journal A, 42(2), 151-157. https://doi.org/10.1140/epja/i2009-10870-x

Measurement of Σ beam asymmetry in π⁰ photoproduction off the neutron in the second and third resonances region. / Di Salvo, R.; Fantini, A.; Mandaglio, G.; Mammoliti, F.; Bartalini, O.; Bellini, V.; Bocquet, J. P.; Casano, L.; D'angelo, A.; Didelez, J. P.; Franco, D.; Gervino, G.; Ghio, F.; Giardina, G.; Girolami, B.; Giusa, A.; Guidal, M.; Hourany, E.; Kunne, R.; Lapik, A.; Sandri, P. Levi; Lleres, A.; Manganaro, M.; Moricciani, D.; Mushkarenkov, A. N.; Nedorezov, V.; Randieri, C.; Rebreyend, D.; Rudnev, N.; Russo, G.; Schaerf, C.; Sperduto, M. L.; Sutera, M. C.; Turinge, A.; Vegna, V.; Fix, A.; Kamalov, S. S.; Tiator, L.

In: European Physical Journal A, Vol. 42, No. 2, 11.2009, p. 151-157.

Research output: Contribution to journal › Article

Di Salvo, R, Fantini, A, Mandaglio, G, Mammoliti, F, Bartalini, O, Bellini, V, Bocquet, JP, Casano, L, D'angelo, A, Didelez, JP, Franco, D, Gervino, G, Ghio, F, Giardina, G, Girolami, B, Giusa, A, Guidal, M, Hourany, E, Kunne, R, Lapik, A, Sandri, PL, Lleres, A, Manganaro, M, Moricciani, D, Mushkarenkov, AN, Nedorezov, V, Randieri, C, Rebreyend, D, Rudnev, N, Russo, G, Schaerf, C, Sperduto, ML, Sutera, MC, Turinge, A, Vegna, V, Fix, A, Kamalov, SS & Tiator, L 2009, 'Measurement of Σ beam asymmetry in π⁰ photoproduction off the neutron in the second and third resonances region', European Physical Journal A, vol. 42, no. 2, pp. 151-157. https://doi.org/10.1140/epja/i2009-10870-x

Di Salvo, R. ; Fantini, A. ; Mandaglio, G. ; Mammoliti, F. ; Bartalini, O. ; Bellini, V. ; Bocquet, J. P. ; Casano, L. ; D'angelo, A. ; Didelez, J. P. ; Franco, D. ; Gervino, G. ; Ghio, F. ; Giardina, G. ; Girolami, B. ; Giusa, A. ; Guidal, M. ; Hourany, E. ; Kunne, R. ; Lapik, A. ; Sandri, P. Levi ; Lleres, A. ; Manganaro, M. ; Moricciani, D. ; Mushkarenkov, A. N. ; Nedorezov, V. ; Randieri, C. ; Rebreyend, D. ; Rudnev, N. ; Russo, G. ; Schaerf, C. ; Sperduto, M. L. ; Sutera, M. C. ; Turinge, A. ; Vegna, V. ; Fix, A. ; Kamalov, S. S. ; Tiator, L. / Measurement of Σ beam asymmetry in π⁰ photoproduction off the neutron in the second and third resonances region. In: European Physical Journal A. 2009 ; Vol. 42, No. 2. pp. 151-157.

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abstract = "The Σ beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.",

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AU - Di Salvo, R.

AU - Fantini, A.

AU - Mandaglio, G.

AU - Mammoliti, F.

AU - Bartalini, O.

AU - Bellini, V.

AU - Bocquet, J. P.

AU - Casano, L.

AU - D'angelo, A.

AU - Didelez, J. P.

AU - Franco, D.

AU - Gervino, G.

AU - Ghio, F.

AU - Giardina, G.

AU - Girolami, B.

AU - Giusa, A.

AU - Guidal, M.

AU - Hourany, E.

AU - Kunne, R.

AU - Lapik, A.

AU - Sandri, P. Levi

AU - Lleres, A.

AU - Manganaro, M.

AU - Moricciani, D.

AU - Mushkarenkov, A. N.

AU - Nedorezov, V.

AU - Randieri, C.

AU - Rebreyend, D.

AU - Rudnev, N.

AU - Russo, G.

AU - Schaerf, C.

AU - Sperduto, M. L.

AU - Sutera, M. C.

AU - Turinge, A.

AU - Vegna, V.

AU - Fix, A.

AU - Kamalov, S. S.

AU - Tiator, L.

PY - 2009/11

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10.1140/epja/i2009-10870-x