title: 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.
abstract: The β-decay half-lives of 38 neutron-rich isotopes from (36)Kr to (43)Tc have been measured; the half-lives of (100)Kr, (103-105)Sr, (106-108)Y, (108-110)Zr, (111,112)Nb, (112-115)Mo, and (116,117)Tc 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.
authors.affiliation: RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Nishimura
authors.forename: Z
authors.initials: Z
authors.lastname: Li
authors.forename: H
authors.initials: H
authors.lastname: Watanabe
authors.forename: K
authors.initials: K
authors.lastname: Yoshinaga
authors.forename: T
authors.initials: T
authors.lastname: Sumikama
authors.forename: T
authors.initials: T
authors.lastname: Tachibana
authors.forename: K
authors.initials: K
authors.lastname: Yamaguchi
authors.forename: M
authors.initials: M
authors.lastname: Kurata-Nishimura
authors.forename: G
authors.initials: G
authors.lastname: Lorusso
authors.forename: Y
authors.initials: Y
authors.lastname: Miyashita
authors.forename: A
authors.initials: A
authors.lastname: Odahara
authors.forename: H
authors.initials: H
authors.lastname: Baba
authors.forename: J S
authors.initials: JS
authors.lastname: Berryman
authors.forename: N
authors.initials: N
authors.lastname: Blasi
authors.forename: A
authors.initials: A
authors.lastname: Bracco
authors.forename: F
authors.initials: F
authors.lastname: Camera
authors.forename: J
authors.initials: J
authors.lastname: Chiba
authors.forename: P
authors.initials: P
authors.lastname: Doornenbal
authors.forename: S
authors.initials: S
authors.lastname: Go
authors.forename: T
authors.initials: T
authors.lastname: Hashimoto
authors.forename: S
authors.initials: S
authors.lastname: Hayakawa
authors.forename: C
authors.initials: C
authors.lastname: Hinke
authors.forename: E
authors.initials: E
authors.lastname: Ideguchi
authors.forename: T
authors.initials: T
authors.lastname: Isobe
authors.forename: Y
authors.initials: Y
authors.lastname: Ito
authors.forename: D G
authors.initials: DG
authors.lastname: Jenkins
authors.forename: Y
authors.initials: Y
authors.lastname: Kawada
authors.forename: N
authors.initials: N
authors.lastname: Kobayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Kondo
authors.forename: R
authors.initials: R
authors.lastname: Krücken
authors.forename: S
authors.initials: S
authors.lastname: Kubono
authors.forename: T
authors.initials: T
authors.lastname: Nakano
authors.forename: H J
authors.initials: HJ
authors.lastname: Ong
authors.forename: S
authors.initials: S
authors.lastname: Ota
authors.forename: Zs
authors.initials: Z
authors.lastname: Podolyák
authors.forename: H
authors.initials: H
authors.lastname: Sakurai
authors.forename: H
authors.initials: H
authors.lastname: Scheit
authors.forename: K
authors.initials: K
authors.lastname: Steiger
authors.forename: D
authors.initials: D
authors.lastname: Steppenbeck
authors.forename: K
authors.initials: K
authors.lastname: Sugimoto
authors.forename: S
authors.initials: S
authors.lastname: Takano
authors.forename: A
authors.initials: A
authors.lastname: Takashima
authors.forename: K
authors.initials: K
authors.lastname: Tajiri
authors.forename: T
authors.initials: T
authors.lastname: Teranishi
authors.forename: Y
authors.initials: Y
authors.lastname: Wakabayashi
authors.forename: P M
authors.initials: PM
authors.lastname: Walker
authors.forename: O
authors.initials: O
authors.lastname: Wieland
authors.forename: H
authors.initials: H
authors.lastname: Yamaguchi