6,541 research outputs found
New method of galactic axion search
An appealing candidate of the galactic dark matter is the axion, which was
postulated to solve the strong CP (Charge-conjugation Parity) violation problem
in the standard particle theory. A new experimental method is proposed to
determine the axion mass. The method uses collectively and coherently excited
atoms or molecules, the trigger laser inducing galactic axion absorption along
with signal photon emission to be detected.Comment: Finite size effect of target is incorporated. 5 pages, 3 figure
Determination of CP violation parameter using neutrino pair beam
Neutrino oscillation experiments under neutrino pair beam from circulating
excited heavy ions are studied. It is found that detection of double weak
events has a good sensitivity to measure CP violating parameter and distinguish
mass hierarchy patterns in short baseline experiments in which the
earth-induced matter effect is minimized.Comment: 9 pages, 6 figure
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