TY  - JOUR
A1  - Ribeiro Jimenez, Guillermo
A1  - Nácher González, Enrique
A1  - Tengblad, Olof
A1  - Díaz Fernández, Paloma
A1  - Aksyutina, Yuliya
A1  - Alvarez-Pol, Héctor
A1  - Atar, Leyla
A1  - Aumann, Thomas
A1  - Avdeichikov, Vladimir
A1  - Beceiro-Novo, Saul
A1  - Bemmerer, Daniel
A1  - Benlliure Anaya, Jose Fernando
A1  - Bertulani, Carlos A.
A1  - Boillos Betete, Juan Manuel
A1  - Boretzky, Konstanze
A1  - Garcia Borge, Maria José
A1  - Caamano, Manuel
A1  - Caesar, Christoph
A1  - Casarejos Ruiz, Enrique
A1  - Catford, Wilton N.
A1  - Cederkäll, Joakim
A1  - Chartier, Marielle
A1  - Chulkov, Leonid V.
A1  - Cortina Gil, Dolores
A1  - Cravo, Edgar
A1  - Crespo, Raquel
A1  - Datta Pramanik, Ushasi
A1  - Dillmann, Iris
A1  - Elekes, Zoltán
A1  - Enders, Joachim
A1  - Ershova, Olga
A1  - Estradé Vaz, Alfredo
A1  - Farinon, Fabio
A1  - Fraile Prieto, Luis Mario
A1  - Freer, Martin
A1  - Fynbo, Hans Otto Uldall
A1  - Galaviz Redondo, Daniel
A1  - Geissel, Hans
A1  - Gernhäuser, Roman
A1  - Golubev, Pavel
A1  - Göbel, Kathrin
A1  - Hagdahl, Julius
A1  - Heftrich, Tanja
A1  - Heil, Michael
A1  - Heine, Marcel
A1  - Heinz, Andreas
A1  - Henriques, Ana
A1  - Holl, Matthias
A1  - Hufnagel, A.
A1  - Ignatov, Alexander
A1  - Johansson, Håkan T.
A1  - Jonson, Björn
A1  - Kalantar-Nayestanaki, Nasser
A1  - Kanungo, Rituparna
A1  - Kelic-Heil, Aleksandra
A1  - Kurz, Nikolaus
A1  - Kröll, Thorsten
A1  - Labiche, Marc
A1  - Langer, Christoph
A1  - Le Bleis, Tudi
A1  - Lemmon, Roy Crawford
A1  - Lindberg, Simon
A1  - Machado, Jorge
A1  - Marganiec, Justyna
A1  - Movsesyan, Alina
A1  - Nilsson, Thomas
A1  - Nociforo, Chiara
A1  - Panin, Valerii
A1  - Paschalis, Stefanos
A1  - Perea Martinez, Angel
A1  - Petri, Marina
A1  - Pietri, Stephane
A1  - Plag, Ralf
A1  - Reifarth, René
A1  - Rigollet, Catherine
A1  - Riisager, Karsten
A1  - Rossi, Dominic M.
A1  - Röder, Marko
A1  - Savran, Deniz
A1  - Scheit, Heiko
A1  - Simon, Haik
A1  - Sorlin, Olivier
A1  - Syndikus, Ina
A1  - Taylor, Jonathan Thomas
A1  - Thies, Ronja
A1  - Velho, Paulo
A1  - Wagner, Andreas
A1  - Wamers, Felix
A1  - Vandebrouck, Marine
A1  - Weick, Helmut
A1  - Wheldon, Carl
A1  - Wilson, Gemma Louise
A1  - Wimmer, Christine
A1  - Winfield, John S.
A1  - Woods, Philip John
A1  - Zhukov, Mikhail V.
A1  - Zilges, Andreas
A1  - Zuber, Kai
T1  - Structure of ¹³Be studied in proton knockout from ¹⁴B
T2  - Physical review. C
N2  - The neutron-unbound isotope 13Be has been studied in several experiments using different reactions, different projectile energies, and different experimental setups. There is, however, no real consensus in the interpretation of the data, in particular concerning the structure of the low-lying excited states. Gathering new experimental information, which may reveal the 13Be structure, is a challenge, particularly in light of its bridging role between 12Be, where the N = 8 neutron shell breaks down, and the Borromean halo nucleus 14Be. The purpose of the present study is to investigate the role of bound excited states in the reaction product 12Be after proton knockout from 14B, by measuring coincidences between 12Be, neutrons, and γ rays originating from de-excitation of states fed by neutron decay of 13Be. The 13Be isotopes were produced in proton knockout from a 400 MeV/nucleon 14B beam impinging on a CH2 target. The 12 Be-n relative-energy spectrum d σ /d Ef n was obtained from coincidences between 12Be(g.s.) and a neutron, and also as threefold coincidences by adding γ rays, from the de-excitation of excited states in 12Be. Neutron decay from the first 5/2+ state in 13Be to the 2+ state in 12Be at 2.11 MeV is confirmed. An energy independence of the proton-knockout mechanism is found from a comparison with data taken with a 35 MeV/nucleon 14B beam. A low-lying p-wave resonance in 13Be(1/2−) is confirmed by comparing proton- and neutron-knockout data from 14B and 14Be.
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62875
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-628757
SN  - 2469-9993
N1  - This work has been partly supported by the Spanish Ministerio de Economía y Competi- tividad (MINECO) through Projects No. FPA2015-65035-P, No. FPA2012-32443, No. FPA2011-24553, No. FPA2011-29854-C04-01, No. FPA2013-41267-P , No. FPA2014-52823- C2-1-P, No. FPA2015-64969-P, and No. FPA2017-87568- P and by the European Union by means of the European Commission within its Seventh Framework Programme (FP7) via ENSAR (Contract No. 262010) and supported by NAVI, GSI-TU Darmstadt cooperation, HIC for FAIR, EMMI and BMBF, and from DFG through grant SFB1245 and Project No. 05P15RDFN1.
N1  - Correspondance: R3B Collaboration, enrique.nacher@csic.es.
VL  - 98.2018
IS  - 2, art. 024603
SP  - 1
EP  - 9
PB  - Inst.
CY  - Woodbury, NY
ER  -