Measurement of Sigma beam asymmetry in pi(0) photoproduction off the neutron in the second and third resonances region (CROSBI ID 252951)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
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, Marina ; 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
GRAAL Collaboration
engleski
Measurement of Sigma beam asymmetry in pi(0) photoproduction off the neutron in the second and third resonances region
The Sigma 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 1.50 GeV, 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 0.82 GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.
ETA-PHOTOPRODUCTION ; BGO CALORIMETER ; PHOTON ; NUCLEON ; PROTON ; GRAAL ; MODEL
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Podaci o izdanju
42 (2)
2009.
151-157
objavljeno
1434-6001
1434-601X
10.1140/epja/i2009-10870-x
