24 research outputs found
Feasibility of the Spin-Light Polarimetry Technique for Longitudinally Polarized Electron Beams
A novel polarimeter based on the asymmetry in the spacial distribution of
synchrotron radiation will make for a fine addition to the existing M{\o}ller
and Compton polarimeters. The spin light polarimeter consists of a set of
wiggler magnet along the beam that generate synchrotron radiation. The spacial
distribution of synchrotron radiation will be measured by ionization chambers.
The up-down (below and above the wiggle) spacial asymmetry in the transverse
plain is used to quantify the polarization of the beam. As a part of the design
process, effects of a realistic wiggler magnetic field and an extended beam
size were studied. The perturbation introduced by these effects was found to be
negligible. Lastly, a full fledged GEANT-4 simulation was built to study the
response of the ionization chamber.Comment: International Nuclear Physics Conference 2013, 4 Pages, 7 Figure
Mississippi State Axion Search: A Light Shining though a Wall ALP Search
The elegant solutions to the strong CP problem predict the existence of a
particle called axion. Thus, the search for axion like particles (ALP) has been
an ongoing endeavor. The possibility that these axion like particles couple to
photons in presence of magnetic field gives rise to a technique of detecting
these particles known as light shining through a wall (LSW). Mississippi State
Axion Search (MASS) is an experiment employing the LSW technique in search for
axion like particles. The apparatus consists of two radio frequency (RF)
cavities, both under the influence of strong magnetic field and separated by a
lead wall. While one of the cavities houses a strong RF generator, the other
cavity houses the detector systems. The MASS apparatus looks for excesses in RF
photons that tunnel through the wall as a signature of candidate axion-like
particles. The concept behind the experiment as well as the projected
sensitivities are presented here.Comment: Xth Patras Workshop on Axions, WIMPs and WISPs; 4 Pages, 5 figure