First Results of a $^{8}$He+d Experiment
International audience Secondary 8He beam delivered by the fragment separator ACCULINNA was used in an experiment designed for the simultaneous study of the 7H and 9He exotic nuclei. Attempt to observe 7H produced in the reaction 2H(8He,3He)7H resulted only in setting a cross section limit, d$\$sigm...
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ftccsdartic:oai:HAL:in2p3-00158762v1 2023-05-15T17:02:52+02:00 First Results of a $^{8}$He+d Experiment Golovkov, M.S. Grigorenko, L.V. Fomichev, A.S. Gorshkov, V.A. Gorshkov, A.V. Krupko, S.A. Oganessian, Yu.Ts. Rodin, A.M. Sidorchuk, S.I. Slepnev, R.S. Stepantsov, S.V. Ter-Akopian, G.M. Wolski, R. Korsheninnikov, A.A. Nikolskii, E.Yu Roussel-Chomaz, P. Mittig, W. RIKEN Nishina Center for Accelerator-Based Science Wako (RIKEN RNC) RIKEN - Institute of Physical and Chemical Research Japon (RIKEN) Grand Accélérateur National d'Ions Lourds (GANIL) Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3) Yu. E. Penionzhkevich, E. A. Cherepanov Khanty-Mansiysk, Russia 2006-07-17 http://hal.in2p3.fr/in2p3-00158762 https://doi.org/10.1063/1.2746578 en eng HAL CCSD American Institute of Physics info:eu-repo/semantics/altIdentifier/doi/10.1063/1.2746578 in2p3-00158762 http://hal.in2p3.fr/in2p3-00158762 doi:10.1063/1.2746578 AIP Conference Proceedings International Symposium on Exotic Nuclei http://hal.in2p3.fr/in2p3-00158762 International Symposium on Exotic Nuclei, Jul 2006, Khanty-Mansiysk, Russia. pp.32-42, ⟨10.1063/1.2746578⟩ helium nuclei with mass number 6 to 19 angular correlation techniques nuclear resonances 27.20.+n 23.20.En [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] info:eu-repo/semantics/conferenceObject Conference papers 2006 ftccsdartic https://doi.org/10.1063/1.2746578 2020-12-26T17:45:22Z International audience Secondary 8He beam delivered by the fragment separator ACCULINNA was used in an experiment designed for the simultaneous study of the 7H and 9He exotic nuclei. Attempt to observe 7H produced in the reaction 2H(8He,3He)7H resulted only in setting a cross section limit, d$\$sigma/d$\Omega$ < 20 µb/sr, for the reaction channel which could populate a resonance lying between 0 and 3 MeV above the 7H decay threshold. The spectrum of 9He was studied by means of the 2H(8He,p)9He reaction. Energy and angular correlations were obtained for the 9He decay products by complete kinematical reconstruction. The lowest resonant state of 9He is found at about 2 MeV with a width of ~2 MeV and is identified as 1/2−. The observed angular correlation pattern is uniquely explained by the interference of the $1/2^− $resonance with a virtual state 1/2+ (a limit of a0 > −20 fm on the scattering length is obtained), and with a $5/2^+$ resonance located at ~4.2 MeV. Conference Object khanty Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) AIP Conference Proceedings 912 32 42 |
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collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
helium nuclei with mass number 6 to 19 angular correlation techniques nuclear resonances 27.20.+n 23.20.En [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] |
spellingShingle |
helium nuclei with mass number 6 to 19 angular correlation techniques nuclear resonances 27.20.+n 23.20.En [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] Golovkov, M.S. Grigorenko, L.V. Fomichev, A.S. Gorshkov, V.A. Gorshkov, A.V. Krupko, S.A. Oganessian, Yu.Ts. Rodin, A.M. Sidorchuk, S.I. Slepnev, R.S. Stepantsov, S.V. Ter-Akopian, G.M. Wolski, R. Korsheninnikov, A.A. Nikolskii, E.Yu Roussel-Chomaz, P. Mittig, W. First Results of a $^{8}$He+d Experiment |
topic_facet |
helium nuclei with mass number 6 to 19 angular correlation techniques nuclear resonances 27.20.+n 23.20.En [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] |
description |
International audience Secondary 8He beam delivered by the fragment separator ACCULINNA was used in an experiment designed for the simultaneous study of the 7H and 9He exotic nuclei. Attempt to observe 7H produced in the reaction 2H(8He,3He)7H resulted only in setting a cross section limit, d$\$sigma/d$\Omega$ < 20 µb/sr, for the reaction channel which could populate a resonance lying between 0 and 3 MeV above the 7H decay threshold. The spectrum of 9He was studied by means of the 2H(8He,p)9He reaction. Energy and angular correlations were obtained for the 9He decay products by complete kinematical reconstruction. The lowest resonant state of 9He is found at about 2 MeV with a width of ~2 MeV and is identified as 1/2−. The observed angular correlation pattern is uniquely explained by the interference of the $1/2^− $resonance with a virtual state 1/2+ (a limit of a0 > −20 fm on the scattering length is obtained), and with a $5/2^+$ resonance located at ~4.2 MeV. |
author2 |
RIKEN Nishina Center for Accelerator-Based Science Wako (RIKEN RNC) RIKEN - Institute of Physical and Chemical Research Japon (RIKEN) Grand Accélérateur National d'Ions Lourds (GANIL) Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3) Yu. E. Penionzhkevich, E. A. Cherepanov |
format |
Conference Object |
author |
Golovkov, M.S. Grigorenko, L.V. Fomichev, A.S. Gorshkov, V.A. Gorshkov, A.V. Krupko, S.A. Oganessian, Yu.Ts. Rodin, A.M. Sidorchuk, S.I. Slepnev, R.S. Stepantsov, S.V. Ter-Akopian, G.M. Wolski, R. Korsheninnikov, A.A. Nikolskii, E.Yu Roussel-Chomaz, P. Mittig, W. |
author_facet |
Golovkov, M.S. Grigorenko, L.V. Fomichev, A.S. Gorshkov, V.A. Gorshkov, A.V. Krupko, S.A. Oganessian, Yu.Ts. Rodin, A.M. Sidorchuk, S.I. Slepnev, R.S. Stepantsov, S.V. Ter-Akopian, G.M. Wolski, R. Korsheninnikov, A.A. Nikolskii, E.Yu Roussel-Chomaz, P. Mittig, W. |
author_sort |
Golovkov, M.S. |
title |
First Results of a $^{8}$He+d Experiment |
title_short |
First Results of a $^{8}$He+d Experiment |
title_full |
First Results of a $^{8}$He+d Experiment |
title_fullStr |
First Results of a $^{8}$He+d Experiment |
title_full_unstemmed |
First Results of a $^{8}$He+d Experiment |
title_sort |
first results of a $^{8}$he+d experiment |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
http://hal.in2p3.fr/in2p3-00158762 https://doi.org/10.1063/1.2746578 |
op_coverage |
Khanty-Mansiysk, Russia |
genre |
khanty |
genre_facet |
khanty |
op_source |
AIP Conference Proceedings International Symposium on Exotic Nuclei http://hal.in2p3.fr/in2p3-00158762 International Symposium on Exotic Nuclei, Jul 2006, Khanty-Mansiysk, Russia. pp.32-42, ⟨10.1063/1.2746578⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.2746578 in2p3-00158762 http://hal.in2p3.fr/in2p3-00158762 doi:10.1063/1.2746578 |
op_doi |
https://doi.org/10.1063/1.2746578 |
container_title |
AIP Conference Proceedings |
container_volume |
912 |
container_start_page |
32 |
op_container_end_page |
42 |
_version_ |
1766056555405377536 |