Break structure of forward peaks of elastic pp and p p scattering at high energies

Journal Article · Mon Sep 02 04:00:00 EDT 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.1197· OSTI ID:5178729

Kawasaki, M ^[1]; Takaishi, T; Yonezawa, M ^[2]

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1. Department of Physics, Gifu University, Yanagido, Gifu 501-11 (Japan)
2. Department of Physics, Hiroshima University, Hiroshima 730 (Japan)

We examine the implication of the unitarity bounds for the differential cross section to the break structure of the forward peak of elastic {ital pp} and {ital {bar p}p} scattering observed at the squared momentum transfer {vert bar}{ital t}{vert bar}=0.1--0.15 (GeV/{ital c}){sup 2} at high energies. The break is suggested to occur at around 8.8/{ital R}{sub 0}{sup 2}{lt}{vert bar}{ital t}{vert bar}{lt}14.7/{ital R}{sub 0}{sup 2}, {ital R}{sub 0} being the interaction radius given in terms of {sigma}{sub {ital t}}{sup 2}/{sigma}{sub el}. This fits well with the experimental data of {ital pp} scattering in the energy region {radical}{ital s} =10--60 GeV and {ital {bar p}p} in 10--546 GeV. Scaling with the variable {ital t}{sigma}{sub {ital t}}{sup 2}/{sigma}{sub el} is discussed.

• OSTI ID: 5178729
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:10; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY RANGE
GEV RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
NUCLEON-ANTINUCLEON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTIAL WAVES
PARTICLE INTERACTIONS
PROTON-ANTIPROTON INTERACTIONS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
SCATTERING
TEV RANGE
TEV RANGE 01-10