6533b852fe1ef96bd12ab5d4

RESEARCH PRODUCT

New results with stored exotic nuclei at relativistic energies

Karl KratzYu. A. LitvinovA. N. OstrowskiD. BoutinL. MaierMargareta HellströmMarc HausmannO. KlepperF. NoldenTakayuki YamaguchiC. ScheidenbergerYu. N. NovikovYu. N. NovikovH.-j. KlugeZygmunt PatykE. KazaV. ShishkinTakashi OhtsuboB. FranzkeHermann WollnikM. WinklerP. BellerHans GeisselThomas FaestermannB. PfeifferS.a.litvinovChristophor KozhuharovK. E. G. LöbnerTh. KerscherTorsten RadonHelmut WeickG. MünzenbergM. FalchMilan MatosF. BoschM. SteckJ. StadlmannMauricio PortilloK. BeckertD.j. VieraF. Attallah

subject

PhysicsNuclear and High Energy PhysicsFission productsIsotopeFissionNuclear TheoryMass spectrometrylaw.inventionIonNuclear physicslawIsospinAtomic physicsNuclear ExperimentSpectroscopyElectron cooling

description

Recently, much progress has been made with stored exotic nuclei at relativistic velocities ( v c = 0.7 ) . Fragments of 208Pb and 209Bi projectiles and fission products from 238U ions were produced, separated in flight with the fragment separator FRS, and injected into the storage-cooler ring ESR for precision measurements. 114 new masses of neutron-deficient isotopes in the lead region have been measured with time-resolved Schottky Mass Spectrometry (SMS). A new isospin dependence of the pairing energy was observed due to the improved mass accuracy of typically 1.5×10-7 (30 keV). New masses of short-lived neutron-rich fission fragments have been obtained with Isochronous Mass Spectrometry (IMS). An innovative field of spectroscopy has been opened up with lifetime measurements of stored bare and few-electron fragments after applying both stochastic and electron cooling.

yearjournalcountryeditionlanguage
2004-12-01Nuclear Physics A
https://doi.org/10.1016/j.nuclphysa.2004.09.030