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Resonance states of superheavy hydrogen nuclei obtained in transfer reactions with exotic beams

par Ter-Akopian, Gurgen;Bogdanov, Dmitrij D.D.;Fomichev, Andrey;Golovkov, M.S.;Oganessian, Yu.Ts.;Rodin, AM;Sidorchuk, S.I.;Slepnev, R.S.;Stepantsov, S.V.;Wolski, Roman;Gorshkov, V.A.;Chelnokov, Maxim;Korsheninnikov, A.A.;Nikolski, Yu E.Y.;Tanihata, Isao;Hanappe, Francis ;Materna, Thomas ;Stuttge, Louise;Ninane, A.
Référence Acta physica Hungarica. Heavy ion physics, 18, 2-4, page (141-148)
Publication Publié, 2003

Article révisé par les pairs

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Résumé :

A resonance state situated at 1.8 ± 0.1 and, most likely, another state positioned at 2.7 ± 0.1 MeV above the t+n+n decay threshold were observed in the missing mass energy spectrum of the 5H nucleus produced in the reaction 3H(t,p) 5H. The peak located close to E 5 ≈ H = 1.8 MeV also was seen in the 5H spectrum obtained from the energy distributions of 3H nuclei emitted in the reaction 2H( 6He, 5H) 3He. The width ( ≤ obs ≤ 0.5 MeV) obtained for the two 5H resonance states is surprisingly small. A state of 4H with E res = 3.3 MeV and γ 2 = 2.3 MeV was obtained in the reaction 2H(t,p) 4H from the proton spectrum.