Measurement of p-barp elastic scattering at. sqrt. s-bar = 52. 8 GeV at the CERN intersecting storage rings

Journal Article · Mon Oct 26 04:00:00 EST 1981 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.47.1191· OSTI ID:5955736

Favart, D; Lipnik, P; Macq, P; Matheys, J; Amos, N; Block, M; Leroy, C; Miller, D; Zucchelli, S; Bobbink, G; Potter, K; Velde-Wilquet, C V; Botje, M; Sens, J

The small-angle elastic scattering for pp at ..sqrt..s-bar = 23.5, 30.7, and 52.8 GeV and for p-barp at ..sqrt..s-bar = 52.8 GeV are measured. The data are normalized on Coulomb scattering. Using the optical theorem and the best estimate of the real part of the forward scattering amplitude, rho(pp-bar) = 0.1, we obtain sigma/sub tot/(p-barp) = 44.1 +- 2.9 mb for the total cross section and b(p-barp) = 13.6 +- 2.2 GeV/sup -2/ for the nuclear slope parameter. This supports the dispersion relation prediction that sigma/sub tot/(p-barp) will start to rise above E/sub lab/roughly-equal200 GeV.

• Research Organization: Universite Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium
• OSTI ID: 5955736
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 47:17; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYON-BARYON INTERACTIONS
CERN ISR
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISPERSION RELATIONS
ELASTIC SCATTERING
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HODOSCOPES
INFORMATION
INTERACTIONS
NUCLEON-ANTINUCLEON INTERACTIONS
NUMERICAL DATA
OPTICAL THEOREM
PARTICLE INTERACTIONS
PROTON-ANTIPROTON INTERACTIONS
SCATTERING
SCATTERING AMPLITUDES
STORAGE RINGS
TOTAL CROSS SECTIONS