title: Schottky mass measurement of the 208Hg isotope: implication for the proton-neutron interaction strength around doubly magic 208Pb.
abstract: Time-resolved Schottky mass spectrometry has been applied to uranium projectile fragments which yielded the mass value for the 208Hg (Z=80, N=128) isotope. The mass excess value of ME=-13 265(31) keV has been obtained, which has been used to determine the proton-neutron interaction strength in 210Pb, as a double difference of atomic masses. The results show a dramatic variation of the strength for lead isotopes when crossing the N=126 neutron shell closure, thus confirming the empirical predictions that this interaction strength is sensitive to the overlap of the wave functions of the last valence neutrons and protons.
authors.affiliation: GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany.
authors.forename: L
authors.initials: L
authors.lastname: Chen
authors.forename: Yu A
authors.initials: YA
authors.lastname: Litvinov
authors.forename: W R
authors.initials: WR
authors.lastname: Plass
authors.forename: K
authors.initials: K
authors.lastname: Beckert
authors.forename: P
authors.initials: P
authors.lastname: Beller
authors.forename: F
authors.initials: F
authors.lastname: Bosch
authors.forename: D
authors.initials: D
authors.lastname: Boutin
authors.forename: L
authors.initials: L
authors.lastname: Caceres
authors.forename: R B
authors.initials: RB
authors.lastname: Cakirli
authors.forename: J J
authors.initials: JJ
authors.lastname: Carroll
authors.forename: R F
authors.initials: RF
authors.lastname: Casten
authors.forename: R S
authors.initials: RS
authors.lastname: Chakrawarthy
authors.forename: D M
authors.initials: DM
authors.lastname: Cullen
authors.forename: I J
authors.initials: IJ
authors.lastname: Cullen
authors.forename: B
authors.initials: B
authors.lastname: Franzke
authors.forename: H
authors.initials: H
authors.lastname: Geissel
authors.forename: J
authors.initials: J
authors.lastname: Gerl
authors.forename: M
authors.initials: M
authors.lastname: Górska
authors.forename: G A
authors.initials: GA
authors.lastname: Jones
authors.forename: A
authors.initials: A
authors.lastname: Kishada
authors.forename: R
authors.initials: R
authors.lastname: Knöbel
authors.forename: C
authors.initials: C
authors.lastname: Kozhuharov
authors.forename: S A
authors.initials: SA
authors.lastname: Litvinov
authors.forename: Z
authors.initials: Z
authors.lastname: Liu
authors.forename: S
authors.initials: S
authors.lastname: Mandal
authors.forename: F
authors.initials: F
authors.lastname: Montes
authors.forename: G
authors.initials: G
authors.lastname: Münzenberg
authors.forename: F
authors.initials: F
authors.lastname: Nolden
authors.forename: T
authors.initials: T
authors.lastname: Ohtsubo
authors.forename: Z
authors.initials: Z
authors.lastname: Patyk
authors.forename: Zs
authors.initials: Z
authors.lastname: Podolyák
authors.forename: R
authors.initials: R
authors.lastname: Propri
authors.forename: S
authors.initials: S
authors.lastname: Rigby
authors.forename: N
authors.initials: N
authors.lastname: Saito
authors.forename: T
authors.initials: T
authors.lastname: Saito
authors.forename: C
authors.initials: C
authors.lastname: Scheidenberger
authors.forename: M
authors.initials: M
authors.lastname: Shindo
authors.forename: M
authors.initials: M
authors.lastname: Steck
authors.forename: P
authors.initials: P
authors.lastname: Ugorowski
authors.forename: P M
authors.initials: PM
authors.lastname: Walker
authors.forename: S
authors.initials: S
authors.lastname: Williams
authors.forename: H
authors.initials: H
authors.lastname: Weick
authors.forename: M
authors.initials: M
authors.lastname: Winkler
authors.forename: H-J
authors.initials: HJ
authors.lastname: Wollersheim
authors.forename: T
authors.initials: T
authors.lastname: Yamaguchi