Polarization Program at ELSA

Anton, G.

doi:10.1007/978-3-642-86995-2_20

Cited by 1 publication

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References 11 publications

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“…Even for the weU studied reaction yd-tnp the observed anomalous polarization of protons in the energy region E, = 0.4-0.6 GeV can be described either in terms of the traditional model or in terms of the model including several DR equally well. Moreover, the existing versions of non-relativistic and relativistic calculations of the polarization phenomena in yd+ pn differ from each other [2,3].…”

Section: Introductionmentioning

confidence: 99%

Rescattering effects in the reaction gamma d to d pi⁰at large pi⁰production angles

Rekalo¹,

Stoletnii²

1993

J. Phys. G: Nucl. Part. Phys.

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We determine the reaction yd-dff amplitude taking into account two mechanisms: the impulse approximation (IA) and the produced pion rescattering (double scattering) on the spectator nucleon (DS). In the calculation we use the non-relativistic diagrams. Employing the factorization hypothesis for the elementary processes y N + yNir and pN-Nlr amplitudes and the deuteron form factors, we determine the spin structure of both the considered parts of the amplitude. The kinematical conditions at which the elementary process amplitudes should be calculated are discussed in detail.We take into account the Fermi motion of nucleons in the deuteron. We show that the method used (the DS effect calculation) is appropriate at small l r ' production angles, @<9W and results in better agreement between the measured and calculated cross section. However, at @>9W the DS contribution to the reaction amplitude significantly excess the IA contribution. At large 9 production angles, the DS amplitude calculation is rather ambiguous.

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Section: Introductionmentioning

confidence: 99%

Rescattering effects in the reaction gamma d to d pi⁰at large pi⁰production angles

Rekalo¹,

Stoletnii²

1993

J. Phys. G: Nucl. Part. Phys.

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Polarization Program at ELSA

Cited by 1 publication

References 11 publications

Rescattering effects in the reaction gamma d to d pi⁰at large pi⁰production angles

Rescattering effects in the reaction gamma d to d pi⁰at large pi⁰production angles

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Polarization Program at ELSA

Cited by 1 publication

References 11 publications

Rescattering effects in the reaction gamma d to d pi0at large pi0production angles

Rescattering effects in the reaction gamma d to d pi0at large pi0production angles

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Rescattering effects in the reaction gamma d to d pi⁰at large pi⁰production angles

Rescattering effects in the reaction gamma d to d pi⁰at large pi⁰production angles