Search for Solar Axions with the CAST experiment

Physics – Medical Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Cast, Axion, Primakoff, Helioscope, Sun

Scientific paper

Our experiment is searching for solar axions or other pseudoscalar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup. Whereas we previously have reported results from CAST with evacuated magnet bores (Phase I), setting limits on lower mass axions, here we report results from CAST where the magnet bores were filled with 4He gas (Phase II) of variable pressure. The introduction of gas generates a refractive photon mass mγ, thereby achieving the maximum possible conversion rate for those axion masses ma that match mγ. We have scanned masses up to about 0.4 eV, taking approximately 2 h of data for each setting. We set a typical upper limit on the axion-photon coupling of gaγ < 2.2·10-10GeV-1 at 95% CL for ma < 0.4 eV. Currently in the second part of CAST Phase II, we are searching for axions with masses up to about 1.2 eV using 3He as a buffer gas. This paper will also present the status of CAST's second phase; 3He upgrades and other system's improvements, results of the last data taking periods and future prospects for extension of CAST towards a more sensitive experiment.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Search for Solar Axions with the CAST experiment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Search for Solar Axions with the CAST experiment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for Solar Axions with the CAST experiment will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1803419

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.