## Files in this item

FilesDescriptionFormat

application/pdf

9114321.pdf (4MB)
(no description provided)PDF

## Description

 Title: Photoproduction of D(+,-) mesons Author(s): Lingel, Karen Lynette Doctoral Committee Chair(s): Wiss, J.E. Department / Program: Physics Discipline: Physics Degree Granting Institution: University of Illinois at Urbana-Champaign Degree: Ph.D. Genre: Dissertation Subject(s): Physics, Elementary Particles and High Energy Abstract: $D\sp{\pm}$ mesons have been observed in photoproduction in Fermilab experiment E687. A sample of approximately 2500 events of the decay $D\sp{\pm}\ \to\ K\sp{\pm}\pi\sp{\pm}\pi\sp{\pm}$ has been analyzed. The cross section for $x\sb{f}\ >$ 0 is measured to be BR $\cdot$ $\sigma$ = 0.368 $\pm$ 0.073 $\pm$ 0.111 $\mu$b/Be nucleus at our average photon energy of 220 GeV. The cross section dependence on incident photon energy, Feynman x, and transverse momentum has also been measured and found to be in good agreement with other measurements.The lifetime of the $D\sp{\pm}$ has been measured to be 1.061 $\pm$ 0.039 $\pm$ 0.020 picoseconds. This measurement is also in good agreement with recent results. Issue Date: 1990 Type: Text Language: English URI: http://hdl.handle.net/2142/22505 Rights Information: Copyright 1990 Lingel, Karen Lynette Date Available in IDEALS: 2011-05-07 Identifier in Online Catalog: AAI9114321 OCLC Identifier: (UMI)AAI9114321
﻿