Pion exchange at high energies
The state of Regge pion exchange calculations for high-energy reactions is reviewed. Experimental evidence is summarized to show that (i) the pion trajectory has a slope similar to that of other trajectories; (ii) the pion exchange contribution can dominate contributions of higher trajectories up to quite a large energy; (iii) many two-body cross sections with large pion contributions can be fit only by models which allow for kinematical conspiracy at t=0. The theory of kinematic conspiracy is reviewed for two-body amplitudes, and calculations of the conspiring pion--Pomeron cut discussed. The author then summarizes recent work on pion exchange in Reggeized Deck models for multiparticle final states, with emphasis on the predictions of various models (with and without resonances) for phases of the partial wave amplitudes.
- Research Organization:
- Physics Department, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
- OSTI ID:
- 5238676
- Journal Information:
- Rev. Mod. Phys.; (United States), Vol. 52:3
- Country of Publication:
- United States
- Language:
- English
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PHOTON-PROTON INTERACTIONS
CROSS SECTIONS
PION MINUS-PROTON INTERACTIONS
PIONS
REGGE TRAJECTORIES
PROTON-NEUTRON INTERACTIONS
REGGE POLES
PARTICLE KINEMATICS
COUPLING
OPE MODEL
PARTIAL WAVES
REGGE CUTS
REVIEWS
TWO-BODY PROBLEM
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BOSON-EXCHANGE MODELS
BOSONS
DOCUMENT TYPES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MANY-BODY PROBLEM
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEON-NUCLEON INTERACTIONS
OBE MODEL
PARTICLE INTERACTIONS
PARTICLE MODELS
PERIPHERAL MODELS
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties
645500 - High Energy Physics- Scattering Theory- (-1987)