β-Decay half-lives of very neutron-rich Kr to Tc isotopes on the boundary of the r-process path: An indication of fast r-matter flow
- Nishimura, S
- Li, Z
- Watanabe, H
- Yoshinaga, K
- Sumikama, T
- Tachibana, T
- Yamaguchi, K
- Kurata-Nishimura, M
- Lorusso, G
- Miyashita, Y
- Odahara, A
- Baba, H
- Berryman, JS
- Blasi, N
- Bracco, A
- Camera, F
- Chiba, J
- Doornenbal, P
- Go, S
- Hashimoto, T
- Hayakawa, S
- Hinke, C
- Ideguchi, E
- Isobe, T
- Ito, Y
- Jenkins, DG
- Kawada, Y
- Kobayashi, N
- Kondo, Y
- Krücken, R
- Kubono, S
- Nakano, T
- Ong, HJ
- Ota, S
- Podolyák, Z
- Sakurai, H
- Scheit, H
- Steiger, K
- Steppenbeck, D
- Sugimoto, K
- Takano, S
- Takashima, A
- Tajiri, K
- Teranishi, T
- Wakabayashi, Y
- Walker, PM
- Wieland, O
- Yamaguchi, H
Publication date
February 2011
DOI Publisher
American Physical Society (APS)Abstract
The β-decay half-lives of 38 neutron-rich isotopes from 36Kr to 43Tc have been measured; the half-lives of 100Kr, 103–105Sr, 106–108Y, 108–110Zr, 111,112Nb, 112–115Mo, and 116,117Tc are reported here. The results when compared with previous standard models indicate an overestimation in the predicted half-lives by a factor of 2 or more in the A≈110 region. A revised model based on the second generation gross theory of β decay better predicts the measured half-lives and suggests a more rapid flow of the rapid neutron-capture process (r-matter flow) through this region than previously predicted
Add to ORKG