Search for Isovector Valence-Shell Excitations in 140 Nd and 142 Sm via Coulomb excitation reactions of radioactive ion beams
| Autor: | Herbert Hess, P. Reiter, J. Jolie, J. Wiederhold, A. Blazhev, K. A. Gladnishki, Radostina Zidarova, E. Giannopoulos, D. Kocheva, P. A. Söderström, N. Warr, T. Kröll, M. Stoyanova, J. M. Keatings, Amar Boukhari, P. Spagnoletti, V. Werner, G. G. O'Neill, V. Karayonchev, A. Vogt, M. Djongolov, D. Rosiak, S. Thiel, G. Rainovski, Liam Gaffney, Norbert Pietralla, C. Fransen, L. Kaya, R. Kern, A. Welker, J. Snäll, Janne Pakarinen, J. G. Cubiss, R. Stegmann, Hilde De Witte, O. Möller, Joakim Cederkäll, Marcus Scheck |
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| Přispěvatelé: | Arsenyev, N, Bezbakh, A, Rogov, I, Shneidman, T, Vdovin, A, Arsenyev, N., Bezbakh, A., Rogov, I., Shneidman, T., Vdovin, A. |
| Rok vydání: | 2018 |
| Předmět: |
Silicon
Physics::Instrumentation and Detectors QC1-999 chemistry.chemical_element Coulomb excitation 01 natural sciences Ion 0103 physical sciences Nuclear Physics - Experiment Nuclear Experiment 010306 general physics Coulomb excitation experiments Physics Large Hadron Collider Isovector ta114 010308 nuclear & particles physics Projectile Detector chemistry Physics::Accelerator Physics Atomic physics Valence electron ydinfysiikka |
| Zdroj: | EPJ Web of Conferences EPJ Web of Conferences, Vol 194, p 03003 (2018) |
| ISSN: | 2100-014X |
| DOI: | 10.1051/epjconf/201819403003 |
| Popis: | Projectile Coulomb excitation experiments were performed at HIE-ISOLDE at CERN with the radioactive ion beams of 140Nd and 142Sm. Ions with an energy of 4:62 MeV/A were impinging on a 1.45 mg/cm2 thick 208Pb target. The γ-rays depopulating the Coulomb-excited states were recorded by the HPGe-array MINIBALL and scattered particles were detected by a double-sided silicon strip detector. Experimental intensities were used for the determination of electromagnetic transition matrix elements. A preliminary result of the B(M1; 2+3 → 2+1) of 140Nd and an upper limit for the case of 142Sm are revealing the main fragments of the proton-neutron mixed-symmetry 2+1;ms states. |
| Databáze: | OpenAIRE |
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