Quest for the 10He nucleus

V. Chudoba; A. S. Fomichev; M. S. Golovkov; A. V. Gorshkov; V. A. Gorshkov; L. V. Grigorenko; S. A. Krupko; Yu. Ts. Oganessian; A. M. Rodin; S. I. Sidorchuk; R. S. Slepnev; S. V. Stepantsov; G. M. Ter-Akopian; R. Wolski; A. A. Korsheninnikov; E. Yu. Nikolskii; V. A. Kuzmin; B. G. Novatskii; D. N. Stepanov; P. Roussel-Chomaz; W. Mittig; V. Bouchat; V. Kinnard; T. Materna; F. Hanappe; O. Dorvaux; L. Stuttge

doi:10.1140/epjst/e2008-00790-y

EPJ

Quest for the ¹⁰He nucleus

V. Chudoba¹^,2, A. S. Fomichev¹, M. S. Golovkov¹, A. V. Gorshkov¹, V. A. Gorshkov¹, L. V. Grigorenko¹, S. A. Krupko¹, Yu. Ts. Oganessian¹, A. M. Rodin¹, S. I. Sidorchuk¹, R. S. Slepnev¹, S. V. Stepantsov¹, G. M. Ter-Akopian¹, R. Wolski¹^,3, A. A. Korsheninnikov⁴^,5, E. Yu. Nikolskii⁴^,5, V. A. Kuzmin⁵, B. G. Novatskii⁵, D. N. Stepanov⁵, P. Roussel-Chomaz⁶, W. Mittig⁶, V. Bouchat⁷, V. Kinnard⁷, T. Materna⁷, F. Hanappe⁷, O. Dorvaux⁸ and L. Stuttge⁸

¹ JINR, Flerov Laboratory of Nuclear Reactions, 141980 Dubna, Russia
² Czech Technical University, Faculty of Nuclear Sciences and Physical Engineering, 115 19 Prague, Czech Republic
³ The Henryk Niewodniczanski Institute of Nuclear Physics, Krakow, Poland
⁴ RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
⁵ RRC “The Kurtchatov Institute", Kurchatov Sq. 1, 123182 Moscow, Russia
⁶ GANIL, BP. 5027, 14076 Caen Cedex 5, France
⁷ Universite Libre Bruxelles, PNTPM, Bruxelles, Belgium
⁸ Institute de Recherches Subatomiques, IN2P3/Université Louis Pasteur, Strasbourg, France

Abstract

The spectrum of

was studied by means of the

reaction at a laboratory energy of 25

and small center-of-mass angles. Missing mass spectrum of

was derived from the obtained p-⁸He coincidence. A resolution of 0.7 MeV was achieved in this spectrum for the measured

energy. Most likely, a well isolated group of 10 events detected between 2 and 5 MeV and showing a maximum at about 3 MeV in the spectrum of the present work exhibits the

g.s. resonance.

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