Bulletin of the American Physical Society
APS April Meeting 2016
Volume 61, Number 6
Saturday–Tuesday, April 16–19, 2016; Salt Lake City, Utah
Session H3: Low Energy, High Precision Lepton Flavor PhysicsInvited
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Sponsoring Units: DPF DNP Chair: Karsten Heeger, Yale University Room: Ballroom B |
Sunday, April 17, 2016 8:30AM - 9:06AM |
H3.00001: g-2 on the Lattice Invited Speaker: Thomas Blum The muon anomalous magnetic moment, g-2, provides a precision test of the Standard Model, which currently shows a discrepancy of about three standard deviations with the E821 experiment at BNL. The leading theory errors correspond to QCD corrections. I review recent lattice QCD calculations of the hadronic vacuum polarization (HVP) and hadronic light-by-light (HLbL) contributions to the muon g-2 by the RBC and UKQCD collaborations. Both are computed with 2+1 flavors of light quarks with physical masses. For the HVP both quark-connected and disconnected diagrams are included while the latter is in progress for the HLbL part. I will address systematic errors and the precision of the lattice results that can be achieved before the E989 experiment at FNAL which seeks to reduce the experimental uncertainty by four. [Preview Abstract] |
Sunday, April 17, 2016 9:06AM - 9:42AM |
H3.00002: The New g-2 Experiment at Fermilab Invited Speaker: Peter Winter The New Muon g-2 experiment E989 at Fermilab will measure the muon's anomalous magnetic moment, $a_\mu$, with a precision goal of 140 ppb; a fourfold improvement over former measurements. Together with the J-PARC g-2 experiment aiming at a similar precision, these two experiments will shed light on the long-standing 3.5 standard deviation between the Brookhaven E821 experiment and the Standard Model calculation of g-2 for the muon. Future progress on the theoretical calculations will further increase the potential to discover new physics beyond the Standard Model. In order to achieve the overall precision, the new Fermilab experiment currently under construction will incorporate some key upgrades compared to the former setup at Brookhaven. In this presentation, these key improvements and the current status of the experiment will be reviewed. [Preview Abstract] |
Sunday, April 17, 2016 9:42AM - 10:18AM |
H3.00003: Neutrinoless Double Beta Decay Results Invited Speaker: Bernhard Schwingenheuer The search for neutrinoless double beta decay might be the only opportunity to observe lepton number violation and to determine the nature of neutrinos. It is therefore considered to be of highest relevance. Many experimental searches using a variety of different isotopes and measurement techniques are ongoing or proposed. The different experimental approaches and their status are reviewed as well as proposed future extensions. [Preview Abstract] |
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