Direct decay-energy measurement as a route to the neutrino mass

Karthein, Jonas; Atanasov, Dinko; Blaum, Klaus; Eliseev, Sergey; Filianin, Pavel; Lunney, David; Manea, Vladimir; Mougeot, Maxime; Neidherr, Dennis; Novikov, Yuri; Schweikhard, Lutz; Welker, Andree; Wienholtz, Frank; Zuber, Kai

doi:10.1007/s10751-019-1601-z

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Direct decay-energy measurement as a route to the neutrino mass

MPS-Authors

/persons/resource/persons192353

Karthein, Jonas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
CERN, Route de Meyrin, 1211 Genève, Switzerland;

/persons/resource/persons30312

Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30445

Eliseev, Sergey
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons181461

Filianin, Pavel
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Mougeot, Maxime
CSNSM-IN2P3-CNRS, Université Paris-Sud, 91400 Orsay, France;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

External Resource

https://link.springer.com/content/pdf/10.1007%2Fs10751-019-1601-z.pdf
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

1905.05510.pdf
(Preprint), 630KB

Supplementary Material (public)

There is no public supplementary material available

Citation

Karthein, J., Atanasov, D., Blaum, K., Eliseev, S., Filianin, P., Lunney, D., et al. (2019). Direct decay-energy measurement as a route to the neutrino mass. Hpyerfine Interactions, 240: 61. doi:10.1007/s10751-019-1601-z.

Cite as: https://hdl.handle.net/21.11116/0000-0004-4C1C-9

Abstract

A high-precision measurement of the ¹³¹Cs → ¹³¹Xe ground-to-ground-state electron-capture Q_EC-value was performed using the ISOLTRAP mass spectrometer at ISOLDE/CERN. The novel PI-ICR technique allowed to reach a relative mass precision δm/m of 1.4 ⋅ 10^− 9. A mass resolving power m/Δm exceeding 1 ⋅ 10⁷ was obtained in only 1s trapping time. Allowed electron-capture transitions with sub-keV or lower decay energies are of high interest for the direct determination of the νe mass. The new measurement improves the uncertainty on the ground-to-ground-state Q_EC-value by a factor 25 precluding the ¹³¹Cs → ¹³¹Xe pair as a feasible candidate for the direct determination of the ν_e mass.