Properties of very n-rich He isotopes

A. S. Fomichev; L. V. Grigorenko; M. S. Golovkov; G. M. Ter-Akopian; Yu Ts Oganessian; V. A. Gorshkov; S. A. Krupko; A. M. Rodin; S. I. Sidorchuk; R. S. Slepnev; S. V. Stepantsov; R. Wolski; V. Chudoba; A. A. Korsheninnikov; E. A. Kuzmin; E. Yu Nikolskii; B. G. Novatskii; D. N. Stepanov; P. Roussel-Chomaz; W. Mittig; D. Pang; A. Ninane; F. Hanappe; L. Stuttge; A. A. Yukhimchuk; V. V. Perevozchikov; Yu I. Vinogradov; S. K. Grishechkin; S. V. Zlatoustovskiy

doi:10.1140/epja/i2008-10739-6

Properties of very n-rich He isotopes

A. S. Fomichev
, L. V. Grigorenko
, M. S. Golovkov
, G. M. Ter-Akopian
, Yu Ts Oganessian
, V. A. Gorshkov
, S. A. Krupko
, A. M. Rodin
, S. I. Sidorchuk
, R. S. Slepnev
, S. V. Stepantsov
, R. Wolski
, V. Chudoba
, A. A. Korsheninnikov
, E. A. Kuzmin
, E. Yu Nikolskii
, B. G. Novatskii
, D. N. Stepanov
, P. Roussel-Chomaz
, W. Mittig

D. Pang, A. Ninane, F. Hanappe, L. Stuttge, A. A. Yukhimchuk, V. V. Perevozchikov, Yu I. Vinogradov, S. K. Grishechkin, S. V. Zlatoustovskiy

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Low-energy spectra of the ^8,10He nuclei were investigated in the (t, p) -type reactions at small centre-of-mass angles using ̃ 25 AMeV beams of ⁶He and ⁸He nuclei. The 0⁺ ground state (g. s.) of ⁸He and excited states, 2⁺ at 3. 6-3. 9MeV and (1⁺) at 5. 3-5. 5MeV, were populated with cross-sections of 200, 100-250, and 90-125μb/sr, respectively. To account for a near-threshold anomaly observed in the ⁸He spectrum the population of a 1^- continuum (soft dipole excitation) was considered. The lowest-energy group of events in the ¹⁰He spectrum was observed at ̃ 3 MeV with a cross-section of ̃ 140 μb/sr. This result is consistent with the previously reported observation of ¹⁰He providing a new g. s. position for ¹⁰He at about 3MeV.

Original language	English
Article number	465
Pages (from-to)	465-469
Number of pages	5
Journal	European Physical Journal A
Volume	42
Issue number	3
DOIs	https://doi.org/10.1140/epja/i2008-10739-6
State	Published - Dec 2009
Externally published	Yes

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Fomichev, A. S., Grigorenko, L. V., Golovkov, M. S., Ter-Akopian, G. M., Oganessian, Y. T., Gorshkov, V. A., Krupko, S. A., Rodin, A. M., Sidorchuk, S. I., Slepnev, R. S., Stepantsov, S. V., Wolski, R., Chudoba, V., Korsheninnikov, A. A., Kuzmin, E. A., Nikolskii, E. Y., Novatskii, B. G., Stepanov, D. N., Roussel-Chomaz, P., ... Zlatoustovskiy, S. V. (2009). Properties of very n-rich He isotopes. European Physical Journal A, 42(3), 465-469. Article 465. https://doi.org/10.1140/epja/i2008-10739-6

@article{9463fc9dabaa48699804a68823f0d03a,

title = "Properties of very n-rich He isotopes",

abstract = "Low-energy spectra of the 8,10He nuclei were investigated in the (t, p) -type reactions at small centre-of-mass angles using{\~ } 25 AMeV beams of 6He and 8He nuclei. The 0+ ground state (g. s.) of 8He and excited states, 2+ at 3. 6-3. 9MeV and (1+) at 5. 3-5. 5MeV, were populated with cross-sections of 200, 100-250, and 90-125μb/sr, respectively. To account for a near-threshold anomaly observed in the 8He spectrum the population of a 1- continuum (soft dipole excitation) was considered. The lowest-energy group of events in the 10He spectrum was observed at{\~ } 3 MeV with a cross-section of{\~ } 140 μb/sr. This result is consistent with the previously reported observation of 10He providing a new g. s. position for 10He at about 3MeV.",

author = "Fomichev, \{A. S.\} and Grigorenko, \{L. V.\} and Golovkov, \{M. S.\} and Ter-Akopian, \{G. M.\} and Oganessian, \{Yu Ts\} and Gorshkov, \{V. A.\} and Krupko, \{S. A.\} and Rodin, \{A. M.\} and Sidorchuk, \{S. I.\} and Slepnev, \{R. S.\} and Stepantsov, \{S. V.\} and R. Wolski and V. Chudoba and Korsheninnikov, \{A. A.\} and Kuzmin, \{E. A.\} and Nikolskii, \{E. Yu\} and Novatskii, \{B. G.\} and Stepanov, \{D. N.\} and P. Roussel-Chomaz and W. Mittig and D. Pang and A. Ninane and F. Hanappe and L. Stuttge and Yukhimchuk, \{A. A.\} and Perevozchikov, \{V. V.\} and Vinogradov, \{Yu I.\} and Grishechkin, \{S. K.\} and Zlatoustovskiy, \{S. V.\}",

year = "2009",

month = dec,

doi = "10.1140/epja/i2008-10739-6",

language = "英语",

volume = "42",

pages = "465--469",

journal = "European Physical Journal A",

issn = "1434-6001",

publisher = "Springer",

number = "3",

}

Fomichev, AS, Grigorenko, LV, Golovkov, MS, Ter-Akopian, GM, Oganessian, YT, Gorshkov, VA, Krupko, SA, Rodin, AM, Sidorchuk, SI, Slepnev, RS, Stepantsov, SV, Wolski, R, Chudoba, V, Korsheninnikov, AA, Kuzmin, EA, Nikolskii, EY, Novatskii, BG, Stepanov, DN, Roussel-Chomaz, P, Mittig, W, Pang, D, Ninane, A, Hanappe, F, Stuttge, L, Yukhimchuk, AA, Perevozchikov, VV, Vinogradov, YI, Grishechkin, SK & Zlatoustovskiy, SV 2009, 'Properties of very n-rich He isotopes', European Physical Journal A, vol. 42, no. 3, 465, pp. 465-469. https://doi.org/10.1140/epja/i2008-10739-6

TY - JOUR

T1 - Properties of very n-rich He isotopes

AU - Fomichev, A. S.

AU - Grigorenko, L. V.

AU - Golovkov, M. S.

AU - Ter-Akopian, G. M.

AU - Oganessian, Yu Ts

AU - Gorshkov, V. A.

AU - Krupko, S. A.

AU - Rodin, A. M.

AU - Sidorchuk, S. I.

AU - Slepnev, R. S.

AU - Stepantsov, S. V.

AU - Wolski, R.

AU - Chudoba, V.

AU - Korsheninnikov, A. A.

AU - Kuzmin, E. A.

AU - Nikolskii, E. Yu

AU - Novatskii, B. G.

AU - Stepanov, D. N.

AU - Roussel-Chomaz, P.

AU - Mittig, W.

AU - Pang, D.

AU - Ninane, A.

AU - Hanappe, F.

AU - Stuttge, L.

AU - Yukhimchuk, A. A.

AU - Perevozchikov, V. V.

AU - Vinogradov, Yu I.

AU - Grishechkin, S. K.

AU - Zlatoustovskiy, S. V.

PY - 2009/12

Y1 - 2009/12

N2 - Low-energy spectra of the 8,10He nuclei were investigated in the (t, p) -type reactions at small centre-of-mass angles using ̃ 25 AMeV beams of 6He and 8He nuclei. The 0+ ground state (g. s.) of 8He and excited states, 2+ at 3. 6-3. 9MeV and (1+) at 5. 3-5. 5MeV, were populated with cross-sections of 200, 100-250, and 90-125μb/sr, respectively. To account for a near-threshold anomaly observed in the 8He spectrum the population of a 1- continuum (soft dipole excitation) was considered. The lowest-energy group of events in the 10He spectrum was observed at ̃ 3 MeV with a cross-section of ̃ 140 μb/sr. This result is consistent with the previously reported observation of 10He providing a new g. s. position for 10He at about 3MeV.

AB - Low-energy spectra of the 8,10He nuclei were investigated in the (t, p) -type reactions at small centre-of-mass angles using ̃ 25 AMeV beams of 6He and 8He nuclei. The 0+ ground state (g. s.) of 8He and excited states, 2+ at 3. 6-3. 9MeV and (1+) at 5. 3-5. 5MeV, were populated with cross-sections of 200, 100-250, and 90-125μb/sr, respectively. To account for a near-threshold anomaly observed in the 8He spectrum the population of a 1- continuum (soft dipole excitation) was considered. The lowest-energy group of events in the 10He spectrum was observed at ̃ 3 MeV with a cross-section of ̃ 140 μb/sr. This result is consistent with the previously reported observation of 10He providing a new g. s. position for 10He at about 3MeV.

UR - https://www.scopus.com/pages/publications/74149093601

U2 - 10.1140/epja/i2008-10739-6

DO - 10.1140/epja/i2008-10739-6

M3 - 文章

AN - SCOPUS:74149093601

SN - 1434-6001

VL - 42

SP - 465

EP - 469

JO - European Physical Journal A

JF - European Physical Journal A

IS - 3

M1 - 465

ER -

Properties of very n-rich He isotopes

Abstract

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