Physical review. C, Nuclear physics, 1993-10, Vol.48 (4), p.1508-1517
1993
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Details
- Autor(en) / Beteiligte
- Titel
- Unitarity cusp in proton Compton scattering
- Ist Teil von
- Physical review. C, Nuclear physics, 1993-10, Vol.48 (4), p.1508-1517
- Ort / Verlag
- United States
- Erscheinungsjahr
- 1993
- Quelle
- PROLA - Physical Review Online Archive
- Beschreibungen/Notizen
- Recent proton Compton scattering data from Saskatoon spanning the pion threshold region are shown to reflect the presence of a unitarity cusp (Wigner cusp), long predicted but never before observed. The analysis is based on a formulation of the Compton cross section employing convenient semiphenomenological expressions for the four dominant multipole amplitudes, designed to respect the low energy theorem and other constraints. Unitarity anomalies have now been detected in both the elastic (Compton) and inelastic ([pi][sup 0][ital p]) channels of the [gamma]+[ital p] reaction.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0556-2813eISSN: 1089-490XDOI: 10.1103/PhysRevC.48.1508Titel-ID: cdi_osti_scitechconnect_6140201
- Format
- –
- Schlagworte
- 663300 -- Nuclear Reactions & Scattering, General-- (1992-), 663510 -- Nuclear Mass Ranges-- A=1-5-- (1992-), BASIC INTERACTIONS, COMPTON EFFECT, CROSS SECTIONS, DATA ANALYSIS, ELASTIC SCATTERING, ELECTROMAGNETIC INTERACTIONS, INTERACTIONS, LOW-ENERGY THEOREM, NUCLEAR PHYSICS AND RADIATION PHYSICS, PARTICLE INTERACTIONS, PHOTON-BARYON INTERACTIONS, PHOTON-HADRON INTERACTIONS, PHOTON-NUCLEON INTERACTIONS, PHOTON-PROTON INTERACTIONS, SCATTERING 663410 -- Photonuclear Reactions & Photon Scattering-- (1992-), UNITARITY