6533b825fe1ef96bd12830f9
RESEARCH PRODUCT
“Safe” Coulomb Excitation ofMg30
Achim RichterP. ReiterT. DavinsonM. PasiniMarkku OinonenM. PanteaO. ForstnerM. HuyseS. EmhoferR. Von HahnG. SchriederH. BoieM. LauerDietrich HabsA. M. HurstL. LiljebyM. MünchC. AlvarezU. K. PalUlli KösterH. SimonS. FranchooS. FranchooT. SieberGeorg BollenHeiko ScheitP. Van DuppenJoakim CederkällDirk SchwalmP. SchmidtP. A. ButlerP. G. ThirolfJ. GerlL. M. FraileR. LutterJ. FittingDirk WeisshaarN. WarrJ. ÄYstöP. Van Den BerghO. ThelenH. O. U. FynboJ. EberthO. IvanovOliver KesterR. KrückenFredrik WenanderJ. Van De WalleO. NiedermaierP. LiebF. AmesG. HuberThomas NilssonThomas NilssonV. BildsteinP. DelahayeK. RudolphP. MayetTh. KröllA. ScherilloG. WalterF. AksouhBjörn JonsonJ. IwanickiB. H. WolfH. HessR. RepnowG. GerschA. SchemppF. KöckRoman GernhäuserHolger PodlechT. Behrenssubject
Physics010308 nuclear & particles physicsIsland of inversionProjectileGeneral Physics and AstronomyCoulomb barrierCoulomb excitation01 natural sciencesNuclear physics13. Climate actionExcited state0103 physical sciencesPhysics::Accelerator PhysicsNeutronAtomic physicsNuclear Experiment010306 general physicsIsotopes of magnesiumMagnesium iondescription
We report on the first radioactive beam experiment performed at the recently commissioned REX-ISOLDE facility at CERN in conjunction with the highly efficient γ spectrometer MINIBALL. Using Mg-30 ions accelerated to an energy of 2.25 MeV/u together with a thin Ni-nat target, Coulomb excitation of the first excited 2(+) states of the projectile and target nuclei well below the Coulomb barrier was observed. From the measured relative deexcitation γ-ray yields the B(E2;0(gs)(+)R 2(1)(+)) value of Mg-30 was determined to be 241(31)e(2) fm(4). Our result is lower than values obtained at projectile fragmentation facilities using the intermediate-energy Coulomb excitation method, and confirms the theoretical conjecture that the neutron-rich magnesium isotope Mg-30 resides outside the "island of inversion."
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-05-04 | Physical Review Letters |