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BEGIN:VEVENT
DTSTAMP:20261022T123204Z
LAST-MODIFIED:20151023T181526Z
DTSTART:20151028T150000Z
DTEND:20151028T160000Z
UID:event1504@bu.edu
URL:http://physics.bu.edu/internal/events/show/1504
SUMMARY: Transient Field Effects for Muon g-2 at Fermilab
DESCRIPTION:Featuring Nicholas Kinnaird\n\nPart of the Preliminary Oral Exa
	m.\n\nExamining Committee: Lee Roberts\, Shyam Erramilli\, James Miller\, S
	o-Young Pi\n\nAbstract:\n\nElementary particles have intrinsic magnetic mom
	ents related to their spins. In the Standard Model the lepton magnetic mome
	nts scale as the Landé g-factor\, which differs slightly from 2 due to vir
	tual loops containing photons and the known massive particles. The contribu
	tions from such heavy particles scales as the lepton mass squared. Thus the
	 sensitivity to heavy particles both inside and outside the Standard Model 
	will scale as (mμ/me)2 ≈ 43000 for the muon compared to the electron. By
	 measuring the magnetic moment of the muon to high precision\, the complete
	ness of the Standard Model can be tested\, and speculative extensions const
	rained. The Muon g-2 experiment at Fermilab is the latest g-2 experiment wh
	ich has the goal of measuring the magnetic moment of the muon to 140 ppb.\n
	\nFrom such a high degree of measurement precision we then require a precis
	ion of 70 ppb on the experimental magnetic field used to measure the spin p
	recession frequency. I have studied the effects of external transient field
	s on this precision field\, including the effects of the ambient 60 Hz and 
	nearby booster accelerator. By measuring their magnitudes at locations in t
	he experimental hall and performing magnetic field analysis using the finit
	e elements software Opera\, I have shown that these effects lie below their
	 allowed error budget of 5 ppb\, and can be ignored beyond adding a small s
	ystematic error to the final measurement. Going forward\, other transients 
	will by analyzed in the same way.\n\n![Nick](/resources/event-image/1504/64
	f5ac3_original)
LOCATION:PRB 261\, 3 Cummington Mall\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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