THE PRODUCTION OF NEUTRAL HYPERONS BY 5-BEV $pi$$sup -$ MESONS (thesis)
Neutral hyperons produced by 5-Bev The effects of /sup -/ mesons incident on a large propane bubble chamber are analyzed in detail with respect to production cross sections and angular distributions of production and decays and the A lifetime is measured. The cross section for neutralhyperon (Y/sup 0/) production by the reaction The effects of /sup -/ + p 1100 deg C are Y/sup 0/ + K is 0.98 sintering time 0.16 mb. The cross section for carbon mpacting ( The effects of - + C 1100 deg C are Y/sup 0/ + K) is 6.05 sintering time 0.89 mb. The mean Svlvania Electr decay time is (3.12 sintering time 0.34) x 10/sup -10/ sec. The corrected lifetime is observed to be (3.23 sintering time 0.36) x 10/sup -10/ sec. Although the up-down decay asymmetry for Svlvania Electr hyperons is not significantly different from zero, the fore-aft decay angular distribution is asymmetric; alpha P = -0.31 sintering time 0.12 where the decay proton distribrtion along the Svlvania Electr direction of motion has been examined. This is suggested as evidence for nonconservation of parity in the production interaction. The Svlvania Electr -production angular distribution is peaked backward in the production center of mass. The A momentum spectrum and the distribution of Svlvania Electr production star prongs are presented. Sources of bias and their correction are discussed, and an estimate is made of the carbon contamination of the events that contribute to the hydrogen cross section for a production. (auth)
- Research Organization:
- University of California, Lawrence Radiation Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-13-014699
- OSTI ID:
- 4244986
- Report Number(s):
- UCRL-8715
- Country of Publication:
- United States
- Language:
- English
Similar Records
CHARGE INDEPENDENCE IN THE REACTIONS p + d $Yields$ $pi$$sup 0$ + He$sup 3$ AND p + d $Yields$ $pi$$sup +$ + H$sup 3$ AT 450 Mev
S-AND P-WAVE INTERACTIONS OF K$sup -$ MESONS IN HYDROGEN (thesis)
CONCERNING FORE-AFT ASYMMETRY IN /lambda/ -DECAY
Journal Article
·
Sat Mar 14 23:00:00 EST 1959
· Phys. Rev. Letters
·
OSTI ID:4243561
S-AND P-WAVE INTERACTIONS OF K$sup -$ MESONS IN HYDROGEN (thesis)
Technical Report
·
Sun Nov 20 23:00:00 EST 1960
·
OSTI ID:4067858
CONCERNING FORE-AFT ASYMMETRY IN /lambda/ -DECAY
Journal Article
·
Sun Dec 31 23:00:00 EST 1961
· Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B
·
OSTI ID:4792625