High energy photoproduction of rho and phi vector mesons
Callahan, Paul Hayward
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https://hdl.handle.net/2142/25393
Description
Title
High energy photoproduction of rho and phi vector mesons
Author(s)
Callahan, Paul Hayward
Issue Date
1983
Doctoral Committee Chair(s)
Gladding, G.E.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
high energy photoproduction
rho vector mesons
phi vector mesons
broad band neutral beam
multiwire-proportional-chamber tracking system
particle identification system
Language
en
Abstract
We have studied the photoproduction of p and phi vector mesons from hydrogen in the Fermilab broad band neutral beam. Forward going two particle final states were detected in a multiparticle spectrometer consistIng of two analyzing magnets, a multiwire-proportional-chamber tracking system and a particle identification system. Recoil protons and target fragments were observed in a recoil detector which surrounded the target. The total elastic cross-sections were measured to be independent of energy at the 10% level from 35 to 225 GeV at 10.6 ub for the p and from 35 to 165 GeV at 0.64 ub for the phi. The elastic differential cross-sections were also
measured.
Approximately
20%
of
the
diffractive
p and
phi
events
were
found
to
be
inelastic
from
an
analysis
of
the
recoil
detector.
The
t-dependence
of
the
fraction
of
diffractive events which are inelastic for both the phi and the ~ are consistent with a universal function determined from the p data.
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