th / 0 30 90 61 v 1 2 3 Se p 20 03 Single - spin asymmetries of d ( γ , π ) NN in the first resonance region
نویسنده
چکیده
Incoherent photoproduction of pions on the deuteron in the first resonance region is investigated with special emphasis on single-spin asymmetries. For the elementary pion production operator an effective Lagrangian model which includes the standard pseudovector Born terms and a resonance contribution from the ∆(1232)-excitation is used. Single-spin asymmetries, both for charged and neutral pion photoproduction on the deuteron, are analyzed and calculated for the first time in the first resonance region. The linear photon asymmetry Σ, vector target asymmetry T 11 and tensor target asymmetries T 20 , T 21 , and T 22 for the reaction d(γ, π)N N are predicted for forthcoming experiments.
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