6533b7d2fe1ef96bd125e008

RESEARCH PRODUCT

Mirror decay of 75Sr

Ari JokinenAlejandro AlgoraMarkku OinonenLuis M FraileEnrique Nacher

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsProtonBranching fractionQ valueMirror nucleiAtomic physicsProton emissionNucleonBeta decayRadioactive decay

description

The β-decay of 75Sr to its mirror nucleus 75Rb was studied at the ISOLDE PSB facility at CERN by means of β-delayed γ and proton spectroscopy. The decay Q-value and β-delayed γ intensity were measured for the first time. These results, 10.60±0.22 MeV and 4.5+1.9 -0.7%, together with accurate measurements of the β-decay half-life and β-delayed proton branching ratio yielded the Gamow-Teller strength 0.35±0.05 for the mirror transition. Implications of the results on studies of deformation effects and on the path of the rapid proton capture process are discussed.

https://doi.org/10.1140/epja/i2002-10103-0