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Small-angle elastic p-p scattering at 30, 50, and 70 GeV. [Cross sections, scattering amplitudes]

Journal Article · · Phys. Rev., D; (United States)
A thin polyethylene target was exposed to the internal proton beam of the Serpukhov accelerator at 30, 50, and 70 GeV. The wide-angle recoil protons were registered by photoemulsion stacks and the differential cross sections of the elastic p-p scattering in the range of four-momentum transfer squared 0.0025 < or = vertical-bar t vertical-bar < or = 0.12 (GeV/c)/sup 2/ were measured. The ratio of the real to the imaginary part of the forward nuclear amplitude ..cap alpha.., the slope parameter of the diffraction peak b, and the total elastic cross section sigma/sub el/ were found to be as follows : At 30 GeV, ..cap alpha.. = -0.183 +- 0.051, b = 10.61 +- 0.27 (GeV/c)/sup -2/, at 70 GeV, ..cap alpha.. = -0.104 +- 0.065, b = 11.21 +- 0.40 (GeV/c)/sup -2/, sigma/sub el/ = 7.1 +- 0.2 mb. (GeV/c)/sup -2/, sigma/sub el/ = 7.1 +- 0.2 mb. (GeV/c)/sup -2/, sigma/sub el/ = 7.1 +- 0.2 mb. (GeV/c)/sup -2/, sigma/sub el/ = 7.1 +- 0.2 mb. (AIP)
Research Organization:
Institute of Nuclear Research and Nuclear Energy, Sofia, Bulgaria
OSTI ID:
7364144
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 13:7; ISSN PRVDA
Country of Publication:
United States
Language:
English