15,503 research outputs found
A search for neutrino-antineutrino mass inequality by means of sterile neutrino oscillometry
The investigation of the oscillation pattern induced by the sterile neutrinos
might determine the oscillation parameters, and at the same time, allow to
probe CPT symmetry in the leptonic sector through neutrino-antineutrino mass
inequality. We propose to use a large scintillation detector like JUNO or LENA
to detect electron neutrinos and electron antineutrinos from MCi electron
capture or beta decay sources. Our calculations indicate that such an
experiment is realistic and could be performed in parallel to the current
research plans for JUNO and RENO. Requiring at least 5 confidence level
and assuming the values of the oscillation parameters indicated by the current
global fit, we would be able to detect neutrino-antineutrino mass inequality of
the order of 0.5% or larger, which would imply a signal of CPT anomalies.Comment: 14 pages, 10 figure
Field-controlled phase separation at the impurity-induced magnetic ordering in the spin-Peierls magnet CuGeO3
The fraction of the paramagnetic phase surviving at the impurity-induced
antiferromagnetic order transition of the doped spin-Peierls magnet
Cu(1-x)Mg(x)GeO3 (x < 5%) is found to increase with an external magnetic field.
This effect is qualitatively explained by the competition of Zeeman energy and
exchange interaction between local antiferromagnetic clustersComment: 4 pages 4 figure
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