Difference between revisions of "Search for CP violation in the gamma-ray sky"
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== Contact Information == | == Contact Information == | ||
| − | Wenlei Chen: wenleichen | + | Wenlei Chen: wenleichen AT wustl.edu |
| − | Francesc Ferrer: ferrer | + | Francesc Ferrer: ferrer AT physics.wustl.edu |
| − | Hiroyuki Tashiro: hiroyuki.tashiro | + | Hiroyuki Tashiro: hiroyuki.tashiro AT nagoya-u.jp |
| − | Tanmay Vachaspati: tvachasp | + | Tanmay Vachaspati: tvachasp AT asu.edu |
Revision as of 13:44, 21 May 2014
Contents
Schema
Illustration of the cut-sky with gamma rays distributed on it. Patches of radius R
degrees are centered on the highest energy gamma rays. In those patches we
test if the lower energy photons are distributed along left- or right-handed spirals. The
statistics Q measures the handedness averaged over all patches in the sky. For
more details, refer to "Search for CP violation in the gamma-ray sky", Hiroyuki Tashiro,
Wenlei Chen, Francesc Ferrer, and Tanmay Vachaspati, arxiv:1310.4826.
Fermi Data
Galactic Latitude and Source Cuts
Galactic latitude and Source Cuts
Evaluation of CP Odd Statistic (Q)
Monte Carlo Simulations
Results
CP odd statistics, Q x 106, versus patch radius R in degrees for the 6 different energy (E1,E2) combinations. E3 is always taken to be 50 GeV. On the left are results of Tashiro's routines; on the right are consistent results obtained using Ferrer's routines. 1σ spreads of the Monte Carlo simulations are shown as magenta error bars. The data points are the results from Fermi data together with 1σ standard errors. Points that deviate by more than 2σ, where σ = max{Monte Carlo spread, standard error}, are colored in red.
Contact Information
Wenlei Chen: wenleichen AT wustl.edu
Francesc Ferrer: ferrer AT physics.wustl.edu
Hiroyuki Tashiro: hiroyuki.tashiro AT nagoya-u.jp
Tanmay Vachaspati: tvachasp AT asu.edu
