Pion and kaon photoproduction at high-energies: Forward and intermediate angles
Apr, 1997
54 pages
Published in:
- Nucl.Phys.A 627 (1997) 645-678
Report number:
- DAPNIA-SPHN-97-26
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Abstract: (Elsevier)
A model for high energy pion and kaon photoproduction ( E γ ≳ 4 GeV) is presented which interpolates between the low and higher momentum transfer regions. At low momentum transfer (which is described in terms of Regge trajectory exchanges), the model is able to give an economical description of unpolarized and polarized data for both the charged and neutral pion photoproduction reactions as well as for K + Λ and K + Σ photoproduction data, available at high energy. At higher momentum transfer, an extrapolation based on saturating Regge trajectories, and which satisfies scaling laws at asymptotically large transfers, is found able to describe the few existing γp → nπ + data. The model can be used as a guidance to interpret forthcoming data at larger momentum transfers.- 13.60.Le
- 12.40.Nn
- 12.38.Bx
- Pseudoscalar meson photoproduction
- High energy
- Regge theory
- High momentum transfer reactions
- photon nucleon: exclusive reaction
- pi: photoproduction
- K: photoproduction
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