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Main Authors: Brugnara, Daniele, Gottardo, Andrea, Assiè, Marlene, Barbieri, Carlo, Mengoni, Daniele, Beaumel, Didier, Brolli, Stefano, Bottoni, Simone, Clément, Emmanuel, Colò, Gianluca, Flavigny, Freddy, Galtarossa, Franco, Girard-Alcindor, Valerian, Lemasson, Antoine, Matta, Adrien, Ramos, Diego, Somà, Vittorio, Valiente-Dobón, José Javier, Vigezzi, Enrico, Babo, Mathieu, Barrientos, Diego, Bazzacco, Dino, Bednarczyk, Piotr, Benzoni, Giovanna, Blumenfeld, Yorick, Boston, Helen, Bracco, Angela, Cederwall, Bo, Ciemala, Michal, Datta, Ushasi, de Angelis, Giacomo, de France, Gilles, Domingo-Pardo, César, Dudouet, Jérémie, Dueñas, José, Domínguez, Beatriz Fernandez, Gadea, Andrés, Goasduff, Alain, González, Vicente, Hammache, Fairouz, Harkness-Brennan, Laura, Hess, Herbert, Houarner, Charles, Illana, Andrés, Judson, Daniel, Jungclaus, Andrea, Korten, Wolfram, Labiche, Marc, Lalanne, Louis, Leoni, Silvia, Lenain, Cyril, Leblond, Sylvain, Ljungvall, Joa, Lombardo, Ivano, Maj, Adam, Marchini, Naomi, Menegazzo, Roberto, Million, Bénédicte, Nyberg, Johan, Pérez-Vidal, Rosa María, Podolyak, Zsolt, Pullia, Alberto, Quintana, Begoña, Recchia, Francesco, Reiter, Peter, Rezynkina, Kseniia, Rocchini, Marco, Saillant, Frédéric, Salsac, Marie-Delphine, Benítez, Ángel Miguel Sánchez, Rojo, Jennifer Sánchez, Sanchis, Enrique, Şenyiğit, Menekşe, Siciliano, Marco, Simpson, John, Sohler, Dorottya, Theisen, Christophe, Zanon, Irene, Zielińska, Magdalena
Format: Preprint
Published: 2025
Subjects:
Nuclear Experiment
Nuclear Theory
81V35
Online Access:https://arxiv.org/abs/2506.23228
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Table of Contents:
  • The $^{46}$Ar($^3$He,d)$^{47}$K reaction was performed in inverse kinematics using a radioactive $^{46}$Ar beam produced by the SPIRAL1 facility at GANIL and a cryogenic $^{3}$He target. The AGATA-MUGAST-VAMOS setup allowed the coincident measurement of the $γ$ rays, deuterons and recoiling $^{47}$K isotopes produced by the reaction. The relative cross sections towards the proton-addition states in $^{47}$K point towards a depletion of the $πs_{1/2}$ shell. The experimental findings are in good agreement with ab initio calculations, which predict that $^{46}$Ar exhibits a charge density bubble associated with a pronounced proton closed-shell character.

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