A Search for New Leptons with Heavy Neutrinos in e/sup +/e/sup -/ Annihilation at. sqrt. s = 29 GeV. [None] Page: 1 of 118
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LBL--25261
DE88 010857
A Search for New Leptons with Heavy Neutrinos
in +e- Annihilation at f/ = 29 GeV
Lisa Gay Mathis
Ph.D. Thesis
Department of Physics
University of California, Berkeley, CA 94720
and
Lawrence Berkeley Laboratory,
University of California, Berkeley, CA 94720
May 5, 1988
Abstract
This thesis describes the results of a search for new leptons with associated heavy
neutrinos. The search uses 68.1 pb-1 of data taken with the TPC/27 detector at
the PEP storage ring. New lepton pairs with charged lepton masses my < 12 GeV
and mass differences in the approximate range 0.4 GeV < mL - m, < 2.5 GeV
are excluded at the 99% confidence level. Results are also given of a study of
search techniques for the region my < 12 GeV, mL - m, < 0.4 GeV.
This work is supported by the United States Department of Energy under
Contract DE-AC03-76SF00098
DISCLAIMER
This report was prepared as an account of work sponsored by an agency of the United States
Government. Neither the United States Government nor any agency thereof, nor any of their
employees, makes any warranty, express or implied, or assumes any legal liability or responsi-
bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or .
process disclosed, or represents that its use would not infringe privately owned rights. Refer-
ence herein to any specific commercial product, process, or service by trade name, trademark,
manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom-
mendation, or favoring by the United States Government or any agency thereof. The views
and opinions of authors expressed herein do not necessarily state or reflect those of the
United States Government or any agency thereof.
DISTRIBUTION OF TIS DOCUMENT IS UNLIII Tu 1
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Mathis, L. G. A Search for New Leptons with Heavy Neutrinos in e/sup +/e/sup -/ Annihilation at. sqrt. s = 29 GeV. [None], report, May 5, 1988; Berkeley, California. (https://digital.library.unt.edu/ark:/67531/metadc1057190/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.