Benchmarking the PreSPEC@GSI experiment for Coulex-multipolarimetry on the π(p3 / 2) → π(p1 / 2) spin-flip transition in 85Br

P. Napiralla*, M. Lettmann, C. Stahl, G. Rainovski, N. Pietralla, S. Afara, F. Ameil, T. Arici, S. Aydin, D. Barrientos, P. Bednarczyk, M. A. Bentley, G. Benzoni, B. Birkenbach, A. Blazhev, A. J. Boston, P. Boutachkov, A. Bracco, B. Bruyneel, E. ClémentM. L. Cortés, F. C.L. Crespi, D. M. Cullen, D. Curien, P. Désesquelles, F. Didierjean, C. Domingo-Pardo, G. Duchêne, J. Eberth, H. Egger, C. Fahlander, J. Gerl, K. A. Gladnishki, P. Golubev, V. González, M. Górska, A. Gottardo, L. Grassi, T. Habermann, L. J. Harkness-Brennan, H. Hess, D. G. Jenkins, P. R. John, J. Jolie, D. S. Judson, I. Kojouharov, W. Korten, M. Labiche, N. Lalović, C. Lizarazo, C. Louchart-Henning, A. Maj, R. Menegazzo, D. Mengoni, E. Merchan, B. Million, O. Möller, T. Möller, K. Moschner, V. Modamio, D. Napoli, B. S.Nara Singh, Zs Podolyák, S. Pietri, D. Ralet, M. Reese, P. Reiter, D. Rudolph, E. Sanchis, L. G. Sarmiento, H. Schaffner, J. Simpson, P. P. Singh, J. J. Valiente-Dobón, V. Werner, O. Wieland

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A first performance test of the Coulomb excitation multipolarimetry (Coulex-multipolarimetry) method is presented. It is based on a 85Brπp3/2→πp1/2 spin-flip experiment performed as part of the PreSPEC-AGATA campaign at the GSI Helmholtzzentrum für Schwerionenforschung (GSI). Via determination of background levels around the expected 85Br excitations as well as measured 197Au excitations, an upper limit for the M1 transition strength of the 1/21-→3/2g.s.- transition in 85Br and a lower beam time limit for upcoming experimental campaigns utilizing Coulex-multipolarimetry have been inferred. The impact of the use of AGATA in its anticipated 1 π configuration on these estimates is deduced via Geant4 simulations.

Original languageEnglish
Article number147
JournalEuropean Physical Journal A
Issue number147
Early online date25 May 2020
Publication statusE-pub ahead of print - 25 May 2020

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