Strange particle production in pi-p and pi+n interactions at 2.5 GeV/c

A bubble chamber experiment based upon 2.71 x 10^5 m pi- track length in hydrogen and 6.88 x 105 m~+ track length in deuterium has been performed to study strange particle production. Cross sections for pi-p reactions exhibit no marked departure from trends established by other experiments at nearby energies. In extracting information about pi+n interactions from the pi+D exposure it was found that 15 to 30% of events, depending on the final state particles, had protons with momentum greater than 250 MeV/c. These protons were not isotropic in the laboratory and therefore not spectators in the sense of the impulse approximation. Protons whose momentum lay in the interval 0 to 250 MeV/c were generally isotropic, and their momentum distribution agreed moderately well with a Hulthen distribution normalized over this interval. With the inclusion of the high proton momentum events the cross sections for processes apparently arising from pi+n interactions were found to be in satisfactory agreement with cross sections for the charge symmetric pi-p reactions.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date

2011

Author dc:creator

• Hanft, Raymond William

Contributors dc:contributor

• Sard, R.D.

• strange particle production
• bubble chamber experiment

Statement dc:rights

• 1967 Raymond William Hanft

Language dc:language

en

Identifier

6086911

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/25699