Neutrino physics with an intense \nuc{51}{Cr}source and an array of low-energy threshold HPGe detectors

Details Neutrino physics with an intense \nuc{51}{Cr}source and an array of low-energy threshold HPGe detectors Neutrino physics with an intense \nuc{51}{Cr}source and an array of low-energy threshold HPGe detectors

2010-11-16

arxiv.org/abs/1011.3811v1

Physics

Nuclear Physics

Nuclear Experiment

12 pages, 2 figures

Scientific paper

We study some of the physics potential of an intense $1\,\mathrm{MCi}$ $^{51}\mathrm{Cr}$ source combined with the {\sc Majorana Demonstrator} enriched germanium detector array. The {\sc Demonstrator} will consist of detectors with ultra-low radioactive backgrounds and extremely low energy thresholds of~$\sim 400\,\mathrm{eV}$. We show that it can improve the current limit on the neutrino magnetic dipole moment. We briefly discuss physics applications of the charged-current reaction of the $^{51}\mathrm{Cr} neutrino with the $^{73}\mathrm{Ge} isotope. Finally, we argue that the rate from a realistic, intense tritium source is below the detectable limit of even a tonne-scale HPGe experiment

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