On the time-modulation of the K-shell electron capture decay of H-like 140Pr58+ ions produced by neutrino-flavour mixing

2008/01/14 by A. N. Ivanov, Ivanov, A. N., R. Reda +3 · 2 citations
Physics and Astronomy · #Astrophysics (astro-ph) #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #astro-ph #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.48550/arxiv.0801.2121

8 pages, 3 figures, typos in footnote 5 are corrected

openalex publication_date 2008/01/14 · arxiv created 2008/11/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

According to recent experimental data at GSI, the rate of the number of daughter ions 140Ce58+, produced by the nuclear K-shell electron capture (EC) decay of the H-like ion 140Pr58+, is modulated in time with a period T_d = 7.06(8) sec and an amplitude a_(EC) = 0.20(2). We show that this phenomenon can be explained by neutrino-flavour mixing and derive a value for the difference of squared masses Delta m²_(21) = m²₂ - m²₁ = 2.22(3)x10^(-4) eV².

Cited by

• THEORETICAL OVERVIEW OF NEUTRINO PROPERTIES
• Time Modulation of theβ+-Decay Rate of H-LikePr<mml:none/>58+<mml:mprescripts/><mml:none/>140Ions

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