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Journal articles
Spectroscopy of He$^{7}$ using the Be$^{9}$(He$^{6}$,Be$^{8}$) transfer reaction
F. Renzi
1
R. Raabe
1
G. Randisi
1
D. Smirnov
1
C. Angulo
2
J. Cabrera
2
E. Casarejos
2
Th. Keutgen
2
A. Ninane
2
J. L. Charvet
3
A. Gillibert
3
V. Lapoux
3
L. Nalpas
3
A. Obertelli
3
F. Skaza
3
J. L. Sida
3
N.A. Orr
4
S. I. Sidorchuk
5
R. Wolski
5
M. J. G. Borge
6
D. Escrig
6
A. Ninane 2
Author
J. L. Charvet 3
Author
A. Gillibert 3
Author
V. Lapoux 3
Author IdHAL : valerie-lapoux ORCID : https://orcid.org/0000-0002-2014-199X
N.A. Orr 4
Author Employer institution : Institut National de Physique Nucléaire et de Physique des Particules du CNRS
S. I. Sidorchuk 5
Author
R. Wolski 5
Author
M. J. G. Borge 6
Author
D. Escrig 6
Author
1
KU Leuven - Catholic University of Leuven - Katholieke Universiteit Leuven (Oude Markt 13 - bus 5005, 3000 Leuven - Belgium)
2
UCL - Université Catholique de Louvain = Catholic University of Louvain (Place de l'Université 1 - 1348 Louvain-La-Neuve - Belgium)
3
IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (CEA Saclay
F-91191 Gif sur Yvette cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/IRFU (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- Université Paris-Saclay (Bâtiment Bréguet, 3 Rue Joliot Curie 2e ét, 91190 Gif-sur-Yvette - France)
4
LPCC - Laboratoire de physique corpusculaire de Caen (ENSICAEN - 6, boulevard du Marechal Juin 14050 Caen Cedex - France)
- UNICAEN - Université de Caen Normandie (Esplanade de la Paix - CS 14032 - 14032 CAEN Cedex 5 - France)
- NU - Normandie Université (Esplanade de la Paix - CS 14032 - 14032 Caen Cedex 5 - France)
- ENSICAEN - École Nationale Supérieure d'Ingénieurs de Caen (6, Boulevard du Maréchal Juin CS 45053 14050 CAEN cedex 04 - France)
- NU - Normandie Université (Esplanade de la Paix - CS 14032 - 14032 Caen Cedex 5 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6534 (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
5
JINR - Joint Institute for Nuclear Research (Joliot-Curie 6, 141980 Dubna, Moscow region - Russia)
6
CSIC - Spanish National Research Council [Madrid] (Serrano, 117, 28006 Madrid - Spain)
Abstract : The unbound nucleus He7 has been investigated via the reaction of a 16.8 MeV He6 radioactive ion beam on a Be9 target. The measurement of the outgoing Be8 through its well characterized two-α decay permitted the energy of the He6+n system to be reconstructed. Through comparison with a complete Monte Carlo simulation incorporating R-matrix lineshapes, the He7 ground state was determined to lie 0.380(28) MeV above the neutron decay with a width of Γ=0.179(21) MeV. A neutron spectroscopic factor SF=0.608(18) was extracted in agreement with the most recent calculations. Significant evidence was found for a broad resonance lying at 2.6(2) MeV above threshold with a ΓFWHM=2.3(3) MeV. These parameters are fully consistent with the properties of 1/2− state reported by Wuosmaa et al. [Phys. Rev. C 72, 061301(R) (2005)]. Limits were also put on the presence of narrow resonances seen in earlier experiments.
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http://hal.in2p3.fr/in2p3-01359046
Contributor : Sandrine Guesnon Connect in order to contact the contributor
Submitted on : Thursday, September 1, 2016 - 4:23:06 PM
Last modification on : Monday, December 13, 2021 - 9:15:27 AM
Contributor : Sandrine Guesnon Connect in order to contact the contributor
Submitted on : Thursday, September 1, 2016 - 4:23:06 PM
Last modification on : Monday, December 13, 2021 - 9:15:27 AM
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- HAL Id : in2p3-01359046, version 1
- DOI : 10.1103/PhysRevC.94.024619
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Citation
F. Renzi, R. Raabe, G. Randisi, D. Smirnov, C. Angulo, et al.. Spectroscopy of He$^{7}$ using the Be$^{9}$(He$^{6}$,Be$^{8}$) transfer reaction. Physical Review C, American Physical Society, 2016, 94 (2), ⟨10.1103/PhysRevC.94.024619⟩. ⟨in2p3-01359046⟩
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