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Title Benchmarking the PreSPEC@GSI experiment for Coulex-multipolarimetry on the $\pi (p_{3/2})\rightarrow \pi (p_{1/2})$ spin-flip transition in $^{85}$Br
Author(s) Napiralla, P (Darmstadt, Tech. Hochsch. ; Darmstadt, GSI) ; Lettmann, M (Darmstadt, Tech. Hochsch.) ; Stahl, C (Darmstadt, Tech. Hochsch.) ; Rainovski, G (Sofiya U.) ; Pietralla, N (Darmstadt, Tech. Hochsch.) ; Afara, S (King Saud U.) ; Ameil, F (Darmstadt, GSI) ; Arici, T (Darmstadt, GSI) ; Aydin, S (Aksaray U.) ; Barrientos, D (CERN) ; Bednarczyk, P (Cracow, INP) ; Bentley, M A (York U., England) ; Benzoni, G (INFN, Milan) ; Birkenbach, B (Cologne U.) ; Blazhev, A (Cologne U.) ; Boston, A J (Liverpool U.) ; Boutachkov, P (Darmstadt, Tech. Hochsch.) ; Bracco, A (INFN, Milan) ; Bruyneel, B (IRFU, Saclay) ; Clément, E (GANIL) ; Cortés, M L (Darmstadt, Tech. Hochsch. ; Darmstadt, GSI ; INFN, Legnaro) ; Crespi, F C L (INFN, Milan) ; Cullen, D M (U. Manchester (main)) ; Curien, D (Strasbourg, IPHC) ; Désesquelles, P (CSNSM, Orsay) ; Didierjean, F (Strasbourg, IPHC) ; Domingo-Pardo, C (Valencia U., IFIC) ; Duchêne, G (Strasbourg, IPHC) ; Eberth, J (Cologne U.) ; Egger, H (Darmstadt, Tech. U.) ; Fahlander, C (Lund U.) ; Gerl, J (Darmstadt, GSI) ; Gladnishki, K A (Sofiya U.) ; Golubev, P (Lund U.) ; González, V (Valencia U., Dept. Ing. Electronica) ; Górska, M (Darmstadt, GSI) ; Gottardo, A (Orsay, IPN) ; Grassi, L (Padua U. ; INFN, Padua) ; Habermann, T (Darmstadt, GSI) ; Harkness-Brennan, L J (Liverpool U.) ; Hess, H (Cologne U.) ; Jenkins, D G (York U., England) ; John, P R (Darmstadt, GSI) ; Jolie, J (Cologne U.) ; Judson, D S (Liverpool U.) ; Kojouharov, I (Darmstadt, GSI) ; Korten, W (IRFU, Saclay) ; Labiche, M (Daresbury) ; Lalović, N (Lund U.) ; Lizarazo, C (Darmstadt, Tech. Hochsch.) ; Louchart-Henning, C (Darmstadt, Tech. Hochsch. ; GSI) ; Maj, A (Cracow, INP) ; Menegazzo, R (INFN, Padua) ; Mengoni, D (Padua U. ; INFN, Padua) ; Merchan, E (Darmstadt, Tech. Hochsch. ; Darmstadt, GSI) ; Million, B (INFN, Milan) ; Möller, O (Darmstadt, Tech. Hochsch.) ; Möller, T (Darmstadt, Tech. Hochsch.) ; Moschner, K (Cologne U.) ; Modamio, V (INFN, Legnaro) ; Napoli, D (INFN, Legnaro) ; Nara Singh, B S (Manchester U. ; West Scotland U.) ; Podolyák, Zs (Surrey U.) ; Pietri, S (Darmstadt, GSI) ; Ralet, D (Darmstadt, Tech. Hochsch. ; Darmstadt, GSI ; Orsay, IPN) ; Reese, M (Darmstadt, GSI) ; Reiter, P (Cologne U) ; Rudolph, D (Lund U.) ; Sanchis, E (Valencia U., Dept. Ing. Electronica) ; Sarmiento, L G (Lund U.) ; Schaffner, H (Darm) ; Simpson, J (Daresbury) ; Singh, P P (Darmstadt, GSI) ; Valiente-Dobón, J J (INFN, Legnaro) ; Werner, V (Darmstadt, Tech. Hochsch.) ; Wieland, O (INFN, Milan)
Publication 2020
Number of pages 10
In: Eur. Phys. J. A 56 (2020) 147
DOI 10.1140/epja/s10050-020-00148-2
Subject category Nuclear Physics - Experiment
Abstract A first performance test of the Coulomb excitation multipolarimetry (Coulex-multipolarimetry) method is presented. It is based on a $^{85}\hbox {Br}\,\pi p_{3/2}\rightarrow \pi p_{1/2}$ 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 $^{85}\hbox {Br}$ excitations as well as measured $^{197}\hbox {Au}$ excitations, an upper limit for the M1 transition strength of the $1/2_1^-\rightarrow 3/2_\text {g.s.}^-$ transition in $^{85}\hbox {Br}$ 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\pi $ configuration on these estimates is deduced via Geant4 simulations.
Copyright/License © Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2020

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