Inclusive. pi. sup + , K sup + and p, p production in e sup + e sup minus annihilation at radical s = 29 GeV

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7017466

Cowan, G D

Measurements of {pi}{sup {plus minus}}, K{sup {plus minus}} and p, {bar p} inclusive cross sections and fractions in e{sup +}e{sup {minus}} annihilation at {radical}s = 29 GeV are presented. The momentum interval covered corresponds to 0.01 < z < 0.90, where z = p/p{sub beam}. The analysis is based on approximately 70 pb{sup {minus}1} of data collected between 1984 and 1986 with the TPC/2{gamma} detector at PEP. Charged particles are identified by a simultaneous measurement of momentum and ionization energy loss (dE/dx). The recently upgraded detector's momentum resolution of ({Delta} p/p){sup 2} = (1.5%){sup 2} + (0.65% p (GeV/c)){sup 2} and a dE/dx resolution of typically 3.5% allow the measurements to be extended to higher z than previously reported.

• Research Organization: California Univ., Berkeley, CA (USA)
• OSTI ID: 7017466
• Country of Publication: United States
• Language: English

Related Subjects

640304 -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
645100* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
BARYON-BARYON INTERACTIONS
BOSONS
COLLISIONS
DATA
ELECTRON COLLISIONS
ELECTRON-POSITRON COLLISIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
MEASURING INSTRUMENTS
MEASURING METHODS
MESONS
NUCLEON-ANTINUCLEON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PEP STORAGE RINGS
PIONS
POSITRON COLLISIONS
PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
PSEUDOSCALAR MESONS
STORAGE RINGS