A measurement of the magnetic field systematic correction to the muon anomalous magnetic moment associated with muon phase space in experiment BNL E821
Deninger, William James
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https://hdl.handle.net/2142/30877
Description
Title
A measurement of the magnetic field systematic correction to the muon anomalous magnetic moment associated with muon phase space in experiment BNL E821
Author(s)
Deninger, William James
Issue Date
1999
Doctoral Committee Chair(s)
Debevec, Paul T.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
muon
traceback detector
Language
en
Abstract
Using a muon storage ring located at Brookhaven National Laboratory (BNL),
the first year of a continuing four year effort to measure the anomalous magnetic
moment of the muon to 0.35 ppm has been completed. The measurement hopes to
provide a direct experimental determination of the single loop weak renormalization
with 23 percent resolution, and will place more stringent constraints on extensions to
the Standard Model. To measure the muon anomaly, polarized muons are injected
into a magnetic storage ring and decay into positrons via the parity violating weak
interaction. The spin precession rate of the muons in the ring is then determined by
measuring energy oscillations of the decay positrons. The rate of oscillation is directly proportional to the magnetic anomaly of the muon. In an effort to measure experimental systematic errors associated with muon phase space in the magnetic storage
ring, a system of four straw drift tube tracking chambers, called the traceback detector, was designed and built at the University of Illinois. The detector is responsible for indirectly measuring the muon distribution in the magnetic storage ring by tracking decay positrons backwards into the magnetic storage ring to the point of muon decay. The muon distribution measurement made from 24093 decay positrons during 1997 lead to a magnetic field systematic correction of +0.3093(117)(4613) ppm to the anomalous magnetic moment of the muon. This measurement is the framework of
this doctoral thesis.
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