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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3670
DTSTART:20150410T203000Z
DTEND:20150410T213000Z
DTSTAMP:20240329T045528Z
LAST-MODIFIED:20150311T131820Z
LOCATION:2241 Chamberlin Hall
SUMMARY:Search for permanent electric dipole moments of protons and de
uterons using storage rings\, Physics Department Colloquium\, Frank Ra
thmann\, Institut fuer Kernphysik \, Forschungszentrum Juelich\, Germa
ny
DESCRIPTION:The Standard Model (SM) of Particle Physics is not capable
to account for the apparent matter-antimatter asymmetry of our Univer
se. Physics beyond the SM is required and is searched for by (i) emplo
ying highest energies (e.g.\, at LHC)\, and (ii) striving for ultimate
precision and sensitivity (e.g.\, in the search for electric dipole m
oments (EDMs)). Permanent EDMs of particles violate both time reversal
(T) and parity (P) invariance\, and are via the CPT-theorem also CP-v
iolating. Finding an EDM would be a strong indication for physics beyo
nd the SM\, and pushing upper limits further provides crucial tests fo
r any correspond- ing theoretical model\, e.g.\, SUSY. Direct searches
of proton and deuteron EDMs bear the potential to reach sensitivities
beyond 10−29 e·cm. For an all-electric proton storage ring\, this
goal is pursued by the US-based srEDM collaboration\, while the newly
found Juelich-based JEDI collaboration is in addition pursuing an appr
oach using a combined electric-magnetic lattice which shall allow acce
ss to the EDMs of protons\, deuterons\, and 3He ions in the same machi
ne.
\n
\nThe talk will highlight recent achievements from expe
rimental investigations at COSY toward the search for electric dipole
moments of charged hadrons\, i.e.\, proton and deuteron\; it will emph
asize one of the most spectacular possibilities in modern science: Fin
ding a signal for new physics beyond the Standard Model through the de
tection of permanent electric dipole moments in a storage ring.
URL:https://www.physics.wisc.edu/events/?id=3670
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