Two body rapidity correlations in pi-p interactions at 147 GeV/c

"Results are presented for inclusive and semi-inclusive two body rapidity correlations for 11 p interactions at 147 GeV/c. Strong short range correlations are seen for particles of opposite sign, while a ""Bose-Einstein"" effect is seen for like sign particles. It is found that the opposite sign correlations are consistent with a cluster model in which 2/3 of the events are generated by a model of independent w-like emission (w -> pi+pi-pi°) with an w-mass of 1.0 GeV, while the remainder of the events are generated according to a model of independent pion emission. It is also found that the data cannot be fit by a model of independent p-like production ( p -> 2pi) regardless of what p-mass is assumed. The real pO cross section determined from this experiment and the real U) cross section determined from information presented elsewhere are sufficient to account for only a small fraction of the observed ( + -) correlations. Conversely, the correlations do not admit large p and U) inclusive cross sections. The like sign correlations contain a broad positive peak at large azimuthal separation. This effect is enhanced at large transverse momentum. Such results may be taken as evidence of fairly massive charged bodies decaying into three charged pions, or doubly charged clusters decaying into two charged pions."

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date

2011

Author dc:creator

• Tortora, John Oliver

Contributors dc:contributor

• Sard, R.D.

• two body rapidity correlations
• Bose-Einstein effect
• pion emission

Statement dc:rights

• 1976 John Oliver Tortora

Language dc:language

en

Identifier

2761015

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/25655