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 | |
| Publication status | Published - Nov 2009 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
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
}
TY - JOUR
T1 - Measurement of Σ beam asymmetry in π0 photoproduction off the neutron in the second and third resonances region
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
Y1 - 2009/11
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=70449530828&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449530828&partnerID=8YFLogxK
U2 - 10.1140/epja/i2009-10870-x
DO - 10.1140/epja/i2009-10870-x
M3 - Article
AN - SCOPUS:70449530828
VL - 42
SP - 151
EP - 157
JO - Zeitschrift fur Physik A Hadrons and Nuclei
JF - Zeitschrift fur Physik A Hadrons and Nuclei
SN - 0939-7922
IS - 2
ER -