Published November 1991 | Version v1
Report Restricted

Analysis of elastic scattering at low momentum transfer

Creators

  • 1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  • 2. Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy

Description

A method for analyzing high energy elastic scattering data is described, which improves on previous methods to extract σtot, σel, B, and ρ=ReM(0)/ImM(0) from experiment by properly allowing for the curvature of 1ndσ/dt with t. The method is used to make a critical analysis of data at √s=19.4, 546, and 1800 GeV. It is found that previous analyses systematically underestimate the forward slope B. The large value of ρ obtained by UA4 at √s=546 GeV is shown to be doubtful. The method described here should aid in the analysis of forthcoming data from UA4/2 and E710. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
14 p.
Report number
DESY--91-143

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
23028820
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANTIPROTONS; ELASTIC SCATTERING; GEV RANGE 10-100; GEV RANGE 100-1000; HADRON-HADRON INTERACTIONS; INTEGRAL CROSS SECTIONS; PROTON-ANTIPROTON INTERACTIONS; PROTON-PROTON INTERACTIONS; SCATTERING AMPLITUDES; TEV RANGE 01-10; TOTAL CROSS SECTIONS
Descriptors DEC
AMPLITUDES; ANTIBARYONS; ANTIMATTER; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYON-BARYON INTERACTIONS; BARYONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INTERACTIONS; IONS; MATTER; NUCLEI; NUCLEON-ANTINUCLEON INTERACTIO; NUCLEON-NUCLEON INTERACTIONS; NUCLEONS; PARTICLE INTERACTIONS; PROTON-NUCLEON INTERACTIONS; PROTONS; SCATTERING; TEV RANGE