DPF 2009

Session

Low Energy Searches for New Physics II

31 Jul 2009, 14:00

Wayne State University

115. Search for tau -> mu/e gamma

Swagato Banerjee (University of Victoria)

31/07/2009, 14:00

Low Energy Searches for BSM Physics

We present a search for the non-conservation of lepton flavor in the decay tau -> mu/e gamma performed with 967 M tau decays from e+e- annihilations collected by the BABAR detector at the PEP-II storage ring at a center-of-mass energy corresponding to Y(2S), Y(3S) and Y(4S) resonances.

121. Search for Lepton-Flavor Violating Upsilon Decays at BaBar

Swagato Banerjee (University of Victoria)

31/07/2009, 14:20

Low Energy Searches for BSM Physics

Charged lepton-flavor violating (CLFV) processes are extremely rare in the Standard Model, but they may occur in various beyond-the-Standard Model (BSM) theories, including SUSY or models with leptoquarks or compositeness. We present a search CLFV decays Upsilon --> e+ tau- and Upsilon --> mu+ tau- which probes BSM contributions at the TeV mass scales.

266. Light Hidden Fermionic Dark Matter In Neutrino Experiments

Dr Jennifer Kile (Brookhaven National Lab)

31/07/2009, 14:45

Low Energy Searches for BSM Physics

We study, in a model-independent analysis, the possibility of direct detection of light fermionic dark matter in neutrino experiments.  We consider all operators of dimension six or lower which can contribute to the process f p -> n e+, where f is a dark fermion, and place constraints on their coefficients via the dark matter lifetime.  We then discuss limits on these interactions from...

329. The CLEAR Experiment

Kate Scholberg (Duke University)

31/07/2009, 15:15

Low Energy Searches for BSM Physics

The Spallation Neutron Source in Oak Ridge, Tennessee, is designed to produce intense pulsed neutrons for various science and engineering applications. Copious neutrinos are a free by-product. When it reaches full power in 2009, the SNS will be the world's brightest source of neutrinos in the few tens of MeV range. The proposed CLEAR (Coherent Low Energy A (Nuclear) Recoils) experiment...

440. Minimal Flavor Violation and Neutrinoless Double Beta Decay

Dr Christopher Kolda (U of Notre Dame)

31/07/2009, 16:10

Low Energy Searches for BSM Physics

In many models of physics beyond the Standard Model, it is necessary to suppress new, large sources of flavor-changing neutral currents. One recipe is to demand that the new physics exhibits “minimal flavor violation.” Though this is really a constraint on the quark sector of the theory, it can have strong effects on possible sources of lepton number violation. In particular, it strongly...

365. A New High-Sensitivity Search for Muon-to-Electron Conversion at FNAL

Andrew Norman (Univeristy of Virginia)

31/07/2009, 16:40

Low Energy Searches for BSM Physics

The Mu2e collaboration is proposing to search for coherent, neutrino-less conversion of muons into electrons in the field of a nucleus with a sensitivity improvement of approximately 10,000 over existing limits. Such a lepton flavor-violating reaction probes new physics at a scale unavailable by direct searches at either present or planned high energy colliders. The physics motivation for Mu2e...

406. CP Violation and EDMs in an M-theory motivated SUSY breaking model

Jing Shao (U of Michigan)

31/07/2009, 17:10

Low Energy Searches for BSM Physics

We demonstrate that in effective theories arising from ${\cal N}=1$ fluxless compactifications of M-theory on a $G_2$ manifold with low energy supersymmetry, CP-violating phases do not appear in the soft-breaking Lagrangian except via the Yukawas. Such a mechanism may be present in other string compactifications as well; we describe properties sufficient for this to occur. CP violation is...