This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.
Permalink
https://hdl.handle.net/2142/22505
Description
Title
Photoproduction of D(+,-) mesons
Author(s)
Lingel, Karen Lynette
Issue Date
1990
Doctoral Committee Chair(s)
Wiss, J.E.
Department of Study
Physics
Discipline
Physics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Elementary Particles and High Energy
Language
eng
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.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.