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Title:Photoproduction of the (Positive, Negative) D* Meson
Author(s):Avery, Paul Ralph
Department / Program:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Physics, Elementary Particles and High Energy
Abstract:Using the broad band beam at FNAL, we have observed the photoproduction of the D('*+) (and D('*-)) meson, where D('*+) (--->) D('0)(pi)('+) and D('0) (--->) K('-)(pi)('+) (143 (+OR-) 20 events) or D('0) (--->) K(,s)(pi)('+)(pi)('-) (35 (+OR-) 11 events). The observation exploited the small D('*+)-D('0) mass difference to reduce the combinatoric background by 3 orders of magnitude. A variety of analysis techniques are presented to demonstrate that the D('*+) is created by a diffractive pair production mechanism, with a cross section given by
(sigma)((gamma) + N (--->) D('0)) = 160 (+OR-) 70 nb/nucleon
Finally we discuss the data in terms of a QCD production mechanism, photon gluon fusion, and attempt to fix certain parameters in the theory by using the D('*) P(,t) distribution.
Issue Date:1980
Description:167 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1980.
Other Identifier(s):(UMI)AAI8108444
Date Available in IDEALS:2015-05-13
Date Deposited:1980

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