6533b855fe1ef96bd12b1265
RESEARCH PRODUCT
Improved limit on the electron-antineutrino rest mass from tritium ß-decay
Hartmut BackeH. FischerA. MolzM. SteiningerH. BarthR. HaidErnst W. OttenJ. BonnCh. WeinheimerJ.u. GrooβPaul LeidererTh. LoekenM. PrzyrembelTh. EdlingA. PicardM. SchraderG. KubeL. FleischmannA. OsipowiczA. HermanniR.b. MooreB. Degensubject
Nuclear physicsPhysicsNuclear and High Energy PhysicsField (physics)SpectrometerElectron energy spectrumTritiumInvariant massddc:530Limit (mathematics)Atomic physicsElectron neutrinodescription
Abstract The endpoint region of the β-spectrum of tritium was remeasured by an electrostatic spectrometer with magnetic guiding field. It enabled the search for a rest mass of the electron-antineutrino with improved precision. The result is m2v=−39±34stat±15syst(eV/c2)2, from which an upper limit of mv m( T )−m( 3 He )=18 591±3 eV /c 2 .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-02-01 |