ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS AT 152 AND 226 Mev

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.129.365· OSTI ID:4732648

Kellman, S; Kovacik, W P; Romanowski, T A

The differential elastic and total cross sections for the scattering of 152- and 228-Mev negative pions by protons have been measured with a liquid hydrogen target and scintillation counters. Analyses of the incident pion beams with a Cherenkov counter yielded higher electron contents than those deduced from range curves. Elastically scattered pions were distinguished from electrons among the scattered particles by use of a Cherenkov counter, or by demanding a coincidence between the scattered pion and recoil proton. The total cross sections measured were 83.7 plus or minus 2.0 and 52.9 plus or minus 1.4 mb at 152 and 226 Mev, respectively. With the present uncertainties, the real pants of the forward scattering amplitudes agree with the predictions of pion dispersion relations. (auth)

• Research Organization: Carnegie Inst. of Tech., Pittsburgh
• NSA Number: NSA-17-006977
• OSTI ID: 4732648
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 129; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

DISPERSION RELATIONS
ELEMENTARY PARTICLES
FIELD THEORY
PHYSICS