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  1. Article ; Online: The status of new fragment separator ACCULINNA-2 project and the first day experiments

    Krupko S.A. / Fomichev A.S. / Grigorenko L.V. / Golovkov M.S. / Stepantsov S.V. / Ter-Akopian G.M. / Bezbakh A.A. / Chudoba V. / Egorova I.A. / Ershov S.N. / Gorshkov A.V. / Gorshkov V.A. / Kaminski G. / Korsheninnikov A.A. / Kuzmin E.A. / Nikolskii E.Yu. / Oganessian Yu.Ts. / Parfenova Yu.L. / Sharov P.G. /
    Sidorchuk S.I. / Slepnev R.S. / Wolski R. / Yukhimchuk A.A. / Zhukov M.V.

    EPJ Web of Conferences, Vol 66, p

    2014  Volume 11021

    Abstract: The new facility fragment separator ACCULINNA-2 will be put into operation at the beginning of 2015 in FLNR JINR. The new separator is destined to add considerably to the studies of drip-line nuclei performed with the use of variety of direct reactions ... ...

    Abstract The new facility fragment separator ACCULINNA-2 will be put into operation at the beginning of 2015 in FLNR JINR. The new separator is destined to add considerably to the studies of drip-line nuclei performed with the use of variety of direct reactions known to be distinctive to the 15 – 50 MeV/amu exotic secondary RIBs. Intense beams provided by the U-400M cyclotron will ensure the achievement of this objective. In addition to the RIB separation accomplished by means of the dipole-wedge-dipole selection, the addition of a zero-degree dipole magnet setup is foreseen. A long (13 m) straight section will provide precise time-of-flight measurements.
    Keywords Physics ; QC1-999 ; Science ; Q
    Language English
    Publishing date 2014-03-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Recent results related to excited states of 6Be and 10He

    Wolski R. / Zhukov M. V. / Ter-Akopian G. M. / Stepantsov S. V. / Slepnev R. S. / Sidorchuk S. I. / Sharov P. G. / Parfenova Yu. L. / Mukha I. G. / Nikolskii E. Yu. / Kuzmin E. A. / Krupko S. A. / Kaminski G. / Jaluvkova P. / Grigorenko L. V. / Gorshkov A. V. / Golovkov M. S. / Ershov S. N. / Chudoba V. /
    Egorova I. A. / Bezbakh A. A. / Fomichev A. S. / Yukhimchuk A. A. / Filchagin S. V. / Kirdyashkin A. A. / Maksimkin I. P. / Vikhlyantsev O. P.

    EPJ Web of Conferences, Vol 38, p

    2012  Volume 15002

    Abstract: The 1H(6Li, 6Be)n charge-exchange reaction and the 3H(8He,p)10He two-neutron transfer reaction were recently carried out at the ACCULINNA fragment separator (FLNR, Dubna) to populate the ground and excited states of 6Be and 10He nuclei, respectively. The ...

    Abstract The 1H(6Li, 6Be)n charge-exchange reaction and the 3H(8He,p)10He two-neutron transfer reaction were recently carried out at the ACCULINNA fragment separator (FLNR, Dubna) to populate the ground and excited states of 6Be and 10He nuclei, respectively. The 6Be ET spectrum (ET is the 6Be energy above its 4He+p+p decay threshold) was obtained with high statistics and described by the well-known 0+ ground state of 6Be at ET = 1.37 MeV, the 2+ state at ET = 3.05 MeV and a broad structure extending from 4 to 16 MeV which could be interpreted as the isovector soft dipole mode associated with the 6Li ground state. In the 10He case the 0+ ground state was found at about 2.1(2) MeV (Γ ~ 2 MeV) above the 8He+n+n breakup threshold. Angular correlations observed for 10He decay products show prominent interference patterns allowing to draw conclusions about the structure of low-energy excited states: 1-(ET ~ 5 MeV) and 2+ (ET ~ 6 MeV).
    Keywords Physics ; QC1-999 ; Science ; Q ; DOAJ:Physics (General) ; DOAJ:Physics and Astronomy
    Subject code 541
    Language English
    Publishing date 2012-12-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Structure of 10He low-lying states uncovered by correlations.

    Sidorchuk, S I / Bezbakh, A A / Chudoba, V / Egorova, I A / Fomichev, A S / Golovkov, M S / Gorshkov, A V / Gorshkov, V A / Grigorenko, L V / Jalůvková, P / Kaminski, G / Krupko, S A / Kuzmin, E A / Nikolskii, E Yu / Oganessian, Yu Ts / Parfenova, Yu L / Sharov, P G / Slepnev, R S / Stepantsov, S V /
    Ter-Akopian, G M / Wolski, R / Yukhimchuk, A A / Filchagin, S V / Kirdyashkin, A A / Maksimkin, I P / Vikhlyantsev, O P

    Physical review letters

    2012  Volume 108, Issue 20, Page(s) 202502

    Abstract: The 0+ ground state of the 10He nucleus produced in the 3H(8He,p)10He reaction was found at about 2.1±0.2  MeV (Γ∼2  MeV) above the three-body ^{8}He+n+n breakup threshold. Angular correlations observed for ^{10}He decay products show prominent ... ...

    Abstract The 0+ ground state of the 10He nucleus produced in the 3H(8He,p)10He reaction was found at about 2.1±0.2  MeV (Γ∼2  MeV) above the three-body ^{8}He+n+n breakup threshold. Angular correlations observed for ^{10}He decay products show prominent interference patterns allowing us to draw conclusions about the structure of low-energy excited states. We interpret the observed correlations as a coherent superposition of a broad 1- state having a maximum at energy 4-6 MeV and a 2+ state above 6 MeV, setting both on top of the 0+ state "tail." This anomalous level ordering indicates that the breakdown of the N=8 shell known in 12Be thus extends also to the ^{10}He system.
    Language English
    Publishing date 2012-05-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.108.202502
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Experimental evidence for the existence of 7H and for a specific structure of 8He.

    Korsheninnikov, A A / Nikolskii, E Yu / Kuzmin, E A / Ozawa, A / Morimoto, K / Tokanai, F / Kanungo, R / Tanihata, I / Timofeyuk, N K / Golovkov, M S / Fomichev, A S / Rodin, A M / Chelnokov, M L / Ter-Akopian, G M / Mittig, W / Roussel-Chomaz, P / Savajols, H / Pollacco, E / Ogloblin, A A /
    Zhukov, M V

    Physical review letters

    2003  Volume 90, Issue 8, Page(s) 82501

    Abstract: Experimental search for the superheavy 7H isotope was performed in the reaction p(8He,pp)7H with the 8He beam at 61.3A MeV. The evidence for existence of the 7H state near the t+4n threshold was obtained. In the same experiment, the p(8He,t) reaction ... ...

    Abstract Experimental search for the superheavy 7H isotope was performed in the reaction p(8He,pp)7H with the 8He beam at 61.3A MeV. The evidence for existence of the 7H state near the t+4n threshold was obtained. In the same experiment, the p(8He,t) reaction populating the ground and excited 2(+) state of 6He was investigated. The obtained results argue on a specific structure of the 8He ground state containing the 6He subsystem in the excited 2(+) state with a large weight.
    Language English
    Publishing date 2003-02-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.90.082501
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  5. Article: Superheavy hydrogen (5)H.

    Korsheninnikov, A A / Golovkov, M S / Tanihata, I / Rodin, A M / Fomichev, A S / Sidorchuk, S I / Stepantsov, S V / Chelnokov, M L / Gorshkov, V A / Bogdanov, D D / Wolski, R / Ter-Akopian, G M / Oganessian, Y T / Mittig, W / Roussel-Chomaz, P / Savajols, H / Kuzmin, E A / Nikolskii, E Y / Ogloblin, A A

    Physical review letters

    2001  Volume 87, Issue 9, Page(s) 92501

    Abstract: Experimental search for (5)H using a secondary beam of (6)He has been performed. The transfer reaction (1)H((6)He,(2)He)(5)H was studied by detecting two protons emitted from the decay of (2)He. A peak consistent with a (5)H resonance at 1.7+/-0.3 MeV ... ...

    Abstract Experimental search for (5)H using a secondary beam of (6)He has been performed. The transfer reaction (1)H((6)He,(2)He)(5)H was studied by detecting two protons emitted from the decay of (2)He. A peak consistent with a (5)H resonance at 1.7+/-0.3 MeV above the n+n+t threshold was observed, with a width of 1.9+/-0.4 MeV. The angular distribution of the (1)H((6)He,(2)He)(5)H reaction was measured as well as the energy correlation of the two protons.
    Language English
    Publishing date 2001-08-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.87.092501
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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