Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Direct mass measurements of 194Hg and 194Au : A new route to the neutrino mass determination? / Böhm, C.; Beck, D.; Blaum, K.; Breitenfeldt, M.; Fedosseev, V. N.; George, S.; Herfurth, F.; Herlert, A.; Kluge, H. J.; Kowalska, M.; Lunney, D.; Naimi, S.; Neidherr, D.; Novikov, Yu N.; Rosenbusch, M.; Schweikhard, L.; Schwarz, S.; Seliverstov, M.; Zuber, K.
в: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Том 693, № 4, 01.01.2010, стр. 426-429.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Direct mass measurements of 194Hg and 194Au
T2 - A new route to the neutrino mass determination?
AU - Böhm, C.
AU - Beck, D.
AU - Blaum, K.
AU - Breitenfeldt, M.
AU - Fedosseev, V. N.
AU - George, S.
AU - Herfurth, F.
AU - Herlert, A.
AU - Kluge, H. J.
AU - Kowalska, M.
AU - Lunney, D.
AU - Naimi, S.
AU - Neidherr, D.
AU - Novikov, Yu N.
AU - Rosenbusch, M.
AU - Schweikhard, L.
AU - Schwarz, S.
AU - Seliverstov, M.
AU - Zuber, K.
PY - 2010/1/1
Y1 - 2010/1/1
N2 - The study of nuclear electron capture (EC) offers an exciting alternative for the determination of the neutrino mass. Whereas only tritium and 187Re can be used in the case of β-decay experiments involving the anti-neutrino, a potentially large number of EC-nuclides can be used in experiments involving the monochromatic neutrino. This alternative to β-decay experiments requires an accurate measurement of QEC-values of appropriate candidates. In the present work we initiate a search for such a candidate and determined the QEC-value of the electron capture in 194Hg by direct mass measurements of 194Hg and 194Au. The new QEC-value of 29(4) keV determined by the ISOLTRAP Penning-trap mass spectrometer at ISOLDE/CERN forbids the K-capture for 194Hg. However, it allows a determination of the neutrino mass by a combination of a micro-calorimetric measurement of the de-excitation spectrum from L-capture in 194Hg and a comparable QEC-value remeasurement by high-precision Penning trap mass spectrometry.
AB - The study of nuclear electron capture (EC) offers an exciting alternative for the determination of the neutrino mass. Whereas only tritium and 187Re can be used in the case of β-decay experiments involving the anti-neutrino, a potentially large number of EC-nuclides can be used in experiments involving the monochromatic neutrino. This alternative to β-decay experiments requires an accurate measurement of QEC-values of appropriate candidates. In the present work we initiate a search for such a candidate and determined the QEC-value of the electron capture in 194Hg by direct mass measurements of 194Hg and 194Au. The new QEC-value of 29(4) keV determined by the ISOLTRAP Penning-trap mass spectrometer at ISOLDE/CERN forbids the K-capture for 194Hg. However, it allows a determination of the neutrino mass by a combination of a micro-calorimetric measurement of the de-excitation spectrum from L-capture in 194Hg and a comparable QEC-value remeasurement by high-precision Penning trap mass spectrometry.
KW - Atomic masses
KW - Mass spectrometry
KW - Neutrino mass
KW - Penning trap
UR - http://www.scopus.com/inward/record.url?scp=77957002821&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2010.08.071
DO - 10.1016/j.physletb.2010.08.071
M3 - Article
AN - SCOPUS:77957002821
VL - 693
SP - 426
EP - 429
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 4
ER -
ID: 46102100