RECOIL PROTON POLARIZATION FROM 225-Mev $pi$$sup -$-p SCATTERING

Journal Article · Mon Feb 01 04:00:00 EST 1960 · Physical Review (U.S.) Superseded in part by Phys.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.117.859· OSTI ID:4177079

Kunze, J F; Romanowski, T A; Ashkin, J; Burger, A

Mesons ( pi /sup -/) of energy 225 Mev were scattered from liquid hydrogen. The polarization of the recoil proton has been measured at two angles. The computed polarizations are --0.13 approximately 0.16 at a laboratory- recoil angle of 15 deg , and +0.36 plus or minus 0.29 at 31 deg . The positive sign is for polarization in the direction of the vector cross product of the incident meson ( pi ) momentum and the recoil proton momentum. A comparison of the data is made with various sets of scattering phase shifts which represent the differential crosssection data equally well. The results favor the Orear type of Fermi set in which the S-wave alpha /sub 1/ phase shift is positive. (auth)

• Research Organization: Carnegie Inst. of Tech., Pittsburgh
• NSA Number: NSA-14-012166
• OSTI ID: 4177079
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 117; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
CROSS SECTIONS
HYDROGEN
LIQUIDS
MEV RANGE
MOMENTUM
PHYSICS
PIONS
PIONS-MINUS
POLARIZATION
PROTONS
QUANTUM MECHANICS
RECOILS
S-WAVE
SCATTERING
SPECTRAL SHIFT