Search for fractionally charged particles in terrestrial samples
Cook, Dwight Dexter
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https://hdl.handle.net/2142/25758
Description
Title
Search for fractionally charged particles in terrestrial samples
Author(s)
Cook, Dwight Dexter
Issue Date
1969
Doctoral Committee Chair(s)
Frauenfelder, Hans
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Date of Ingest
2011-07-11T17:00:40Z
Keyword(s)
fractionally charged particles
terrestrial samples
sea water
rock
quarks
Language
en
Abstract
We have performed a geophysical search for fractionally
charged particles (mainly ql quarks) in sea water and rock sample's. The
samples,chosen were ten rock samples, which are believed to have
been at the earth's surface for a long time, and two three-liter sea
water samples. The samples were run through cation exchange columns
to separate most of the material from particles of charge ±.2/3 and
± 1/3. The purified samples were then evaporated in an electron
gun, which accelerated the negatively charged particles to a solid
state detector. The pulse height spectra from the detector were
scanned for peaks corresponding to particles of a charge between
minus one and zero. No such particles were found. The concentration
of ql quarks in the rock samples was < 10^-23 quarks/nucleon and
in the sea water samples was ~< 10^-24 quarks / nucleon.
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