Looking for double beta decay of 150Nd to excited states of 150Sm by gamma ray spectroscopy

✍ Scribed by C. Arpesella; E. Bellotti; N. Ferrari; L. Zanotti

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 287 KB
• Volume: 70
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(98)00430-7

✦ Synopsis

We have measured the gamma ray activity of a sample of 6189 grams of metallic Neodimium with a germanium detector. Ram the gamma energy spectrum recorded during almost 6500 hours we extract lower limits for the halflife of the inclusive (Ov+2v) @ decay of 15'Nd to the first excited states of 150Sm : t1,2(0t -_) 0:) > 1.0. 102', t,,2(O+ 3 0:) > 2.0 * 1020, t,,2(0+ _) 23 > 9.1 * lolQ.