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Title: PION-PROTON ELASTIC DIFFRACTION SCATTERING AT 3, 4, AND 5 Gev/c

Abstract

The elastic differential cross sections for pi - scattering on protons at 3.15, 4.13, and 4.95 Bev/c and for pi /sup +/ scattering on protons at 2.92 Bev/c were measured in a spark chamber experiment. The data in the diffraction region for these momenta are reported. The data show the predicted exponential behavior for small four-momentum transfers, but no statistically significant shrinkage of the pi /sup -/ + p diffraction peaks over the 3 to 5 Bev/c interval is observed. Comparison with other data to 16 Bev/c also gives little evidence of shrinkage, although data for 15.9 Bev/c have relatively large published errors. This is in contrast to the proton-proton case, where the data are in good agreement with Regge behavior. It is concluded that the p + p and pi /sup -/ + p diffraction elastic scatterings present different behaviors. The influence of trajectories other than the Pomeranchuk trajectory must be considered to explain diffraction scattering in this energy region by the Regge theory. (H.D.R.)

Authors:
; ;
Publication Date:
Research Org.:
Univ. of Michigan, Ann Arbor
OSTI Identifier:
4733314
NSA Number:
NSA-17-009258
Resource Type:
Journal Article
Journal Name:
Phys. Rev. Letters
Additional Journal Information:
Journal Volume: Vol: 9; Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
Country unknown/Code not available
Language:
English
Subject:
PHYSICS; ELEMENTARY PARTICLES; FIELD THEORY; POMERANCHUK POLES; REGGE POLES

Citation Formats

Ting, C C, Jones, L W, and Perl, M L. PION-PROTON ELASTIC DIFFRACTION SCATTERING AT 3, 4, AND 5 Gev/c. Country unknown/Code not available: N. p., 1962. Web. doi:10.1103/PhysRevLett.9.468.
Ting, C C, Jones, L W, & Perl, M L. PION-PROTON ELASTIC DIFFRACTION SCATTERING AT 3, 4, AND 5 Gev/c. Country unknown/Code not available. doi:10.1103/PhysRevLett.9.468.
Ting, C C, Jones, L W, and Perl, M L. Sat . "PION-PROTON ELASTIC DIFFRACTION SCATTERING AT 3, 4, AND 5 Gev/c". Country unknown/Code not available. doi:10.1103/PhysRevLett.9.468.
@article{osti_4733314,
title = {PION-PROTON ELASTIC DIFFRACTION SCATTERING AT 3, 4, AND 5 Gev/c},
author = {Ting, C C and Jones, L W and Perl, M L},
abstractNote = {The elastic differential cross sections for pi - scattering on protons at 3.15, 4.13, and 4.95 Bev/c and for pi /sup +/ scattering on protons at 2.92 Bev/c were measured in a spark chamber experiment. The data in the diffraction region for these momenta are reported. The data show the predicted exponential behavior for small four-momentum transfers, but no statistically significant shrinkage of the pi /sup -/ + p diffraction peaks over the 3 to 5 Bev/c interval is observed. Comparison with other data to 16 Bev/c also gives little evidence of shrinkage, although data for 15.9 Bev/c have relatively large published errors. This is in contrast to the proton-proton case, where the data are in good agreement with Regge behavior. It is concluded that the p + p and pi /sup -/ + p diffraction elastic scatterings present different behaviors. The influence of trajectories other than the Pomeranchuk trajectory must be considered to explain diffraction scattering in this energy region by the Regge theory. (H.D.R.)},
doi = {10.1103/PhysRevLett.9.468},
journal = {Phys. Rev. Letters},
number = ,
volume = Vol: 9,
place = {Country unknown/Code not available},
year = {1962},
month = {12}
}