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Sökning: onr:"swepub:oai:research.chalmers.se:3746ec1b-764f-4f96-b3d7-58d1cc5cc0ca" > H 6 states studied ...

H 6 states studied in the H 2 (He 8, He 4) reaction and evidence of an extremely correlated character of the H 5 ground state

Nikolskii, E.Y. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,National Research Centre "Kurchatov Institute"
Muzalevskii, I. A. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Slezska univerzita v Opave
Bezbakh, A.A. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Slezska univerzita v Opave
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Chudoba, V. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Slezska univerzita v Opave
Krupko, S. A. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Belogurov, S. G. (författare)
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russian Federation,Joint Institute for Nuclear Research (JINR), Russian Federation
Biare, D. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Fomichev, A. S. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Dubna International University
Gazeeva, E. M. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Gorshkov, A. V. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Grigorenko, L (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russian Federation,National Research Centre "Kurchatov Institute"
Kaminski, G. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Uniwersytet Warszawski,University of Warsaw
Khirk, M. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,M. V. Lomonosov Moscow State University
Kiselev, O. (författare)
Helmholtz Zentrum,Helmholtz Center
Kostyleva, D. (författare)
Helmholtz Zentrum,Helmholtz Center,Justus-Liebig-Universität Gießen,Justus Liebig University Giessen
Kozlov, M. Yu (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Mauyey, B. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Mukha, I. G. (författare)
Helmholtz Zentrum,Helmholtz Center
Parfenova, Y. L. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Piatek, W. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Uniwersytet Warszawski,University of Warsaw
Quynh, A. M. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Schetinin, V. N. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Serikov, A. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Sidorchuk, S. I. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Sharov, P.G. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Slezska univerzita v Opave
Shulgina, N. B. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,National Research Centre "Kurchatov Institute"
Slepnev, R. S. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Stepantsov, S. V. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation
Swiercz, A. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie,AGH University of Science and Technology
Szymkiewicz, P. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie,AGH University of Science and Technology
Ter-Akopian, G. M. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Dubna International University
Wolski, R. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Polish Academy of Sciences
Zalewski, B. (författare)
Joint Institute for Nuclear Research (JINR), Russian Federation,Uniwersytet Warszawski,University of Warsaw
Zhukov, Mikhail, 1943 (författare)
Chalmers tekniska högskola,Chalmers University of Technology
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 (creator_code:org_t)
2022
2022
Engelska.
Ingår i: Physical Review C. - 2469-9993 .- 2469-9985. ; 105:6
Relaterad länk:
https://doi.org/10.1...
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https://research.cha...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • The extremely neutron-rich system H6 was studied in the direct H2(He8,He4)H6 transfer reaction with a 26A MeV secondary He8 beam. The measured missing mass spectrum shows a broad bump at ≈4-8 MeV above the H3+3n decay threshold. This bump can be interpreted as a broad resonant state in H6 at 6.8(5) MeV. The population cross section of such a presumably p-wave state (or it may be few overlapping states) in the energy range from 4 to 8 MeV is dσ/dωc.m.≃190-80+40μb/sr in the angular range 5°<θc.m.<16°. The obtained missing mass spectrum is practically free of H6 events below 3.5 MeV (dσ/dωc.m. 5μb/sr in the same angular range). The steep rise of the H6 missing mass spectrum at ≈3 MeV allows us to derive the lower limit for the possible resonant-state energy in H6 to be 4.5(3) MeV. According to the paring energy estimates, such a 4.5(3) MeV resonance is a realistic candidate for the H6 ground state (g.s.). The obtained results confirm that the decay mechanism of the H7 g.s. (located at 2.2 MeV above the H3+4n threshold) is the "true"(or simultaneous) 4n emission. The resonance energy profiles and the momentum distributions of fragments of the sequential H6→H5(g.s.)+n→H3+3n decay were analyzed by the theoretically updated direct four-body-decay and sequential-emission mechanisms. The measured momentum distributions of the H3 fragments in the H6 rest frame indicate very strong "dineutron-type"correlations in the H5 ground state decay.

Ämnesord

NATURVETENSKAP  -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

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