6533b7d0fe1ef96bd125b93d

RESEARCH PRODUCT

Single-spin asymmetries of $d(\gamma,\pi)NN$ in the first resonance region

Eed M. Darwish

subject

PhysicsNuclear and High Energy PhysicsParticle physicsPhotonNuclear TheoryOperator (physics)media_common.quotation_subjectNuclear TheoryResonance (particle physics)AsymmetryNuclear physicsPionHigh Energy Physics::ExperimentTensorSpin (physics)Nuclear ExperimentPseudovectormedia_common

description

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 $\Delta$(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 $\Sigma$, vector target asymmetry $T_{11}$ and tensor target asymmetries $T_{20}$, $T_{21}$, and $T_{22}$ for the reaction $d(\gamma,\pi)NN$ are predicted for forthcoming experiments.

10.1016/j.nuclphysa.2004.02.010http://arxiv.org/abs/nucl-th/0309061