A single, trapped barium ion presents an excellent opportunity to make a precise atomic parity nonconservation measurement. The relatively perturbation-free single-ion trapping environment and high efficiency shelving techniques can in principle be used to achieve an experimental precision at the 0.3% level or better. This ...

Nanopore analysis of nucleic acids is a novel technique to study the physical properties of nucleic acids at the single-molecule level. It also has the potential to be a central component of a fundamentally new DNA sequencing methodology. In this technique, individual single-stranded DNA or RNA molecules are detected and ...

I present an initial investigation into a new planet detection technique that uses the transit timing of a known, transiting planet. The transits of a solitary planet orbiting a star occur at equally spaced intervals in time. If a second planet is present; dynamical interactions within the system will cause the time interval ...

Chiral perturbation theory (chiPT), the low-energy effective theory of QCD, can be used to describe QCD observables in the low-energy region in a model-independent way. At any given order in the chiral expansion, chiPT introduces a finite number of parameters that encode the short-distance physics and that must be determined ...

A new potential energy function modeling the interaction among water molecules is presented. The dominant attractive interaction among the molecules, the electrostatic interaction, is represented with a multipolar expansion around the center of mass. The dipoles and quadrupoles are polarizable while the octopoles and hexadecapoles ...

Recent attempts at unifying the descriptions of gravity and quantum mechanics predict that Newton's Gravitational Inverse-Square Law will fail below some distance scale, possibly as large as 1 mm. Recent measurements of the Dark Energy content of the universe could also imply short-range modifications to gravity.Our previous ...

We completed the first measurement of the parity non-conserving neutron spin-rotation in helium, $\varphi\sb{\rm PNC}.$ The PNC spin-rotation is sensitive to the isovector pion exchange amplitude, $f\sb{\pi},$ in the meson exchange model that describes the weak NN interaction. The strength of the pion coupling is of particular ...

The GLAST mission (Gamma-ray Large Area Space Telescope) will yield a great amount of photon data in the region from 30 MeV to 300 GeV. However, the sparsity of incoming photon events and strong dependence of instrument response on photon energy necessitate data analysis techniques different from those used in similar areas ...

The measurement of a nonzero permanent electric dipole moment (EDM) on an atom or particle would reveal a new source of CP violation beyond the Standard Model. The first measurement of the 199Hg EDM using a UV laser to optically pump and probe a stack of two 199 Hg vapor cells has been completed yielding the result, d( 199Hg) ...