The t+n+n system and H-5
| Autor: | Meister, M., Chulkov, L. V., Simon, H., Aumann, T., García Borge, María José, Elze, Th. W., Emling, H., Geissel, H., Hellström, M., Jonson, B., Kratz, J. V., Kulessa, R., Leifels, Y., Markenroth, K., Münzenberg, G., Nickel, F., Nilsson, T., Nyman, G., Pribora, V., Richter, Achim W., Riisager, K., Scheidenberger, C., Schrieder, G., Tengblad, Olof, Zhukov, M. V. |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: | |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | 4 pages, 1 table, 3 figures.--PACS nrs.: 27.10.+h; 21.10.Pc; 25.60.Gc The one-proton knockout channel from He-6 (240 MeV/u) impinging on a carbon target has been investigated. The triton fragments originating from this channel were detected in coincidence with the two neutrons. A broad structure, peaked at 3 MeV above the t+2n threshold, is observed in the t+n+n-relative energy spectrum. It is shown that this structure is mainly due to a I-pi=1/2(+) resonance as expected for the H-5 ground state, and from the observed angular and energy correlations, being used for the first time in H-5 studies, that the neutrons to a large extent occupy the p shell. This work was supported by the BMBF under Contracts No. 06 DA 925 I, No. 06 OF 838, and No. 06 MZ 864 I, and by GSI via Hochschulzusammenarbeitsvereinbarungen under Contracts No. DARIC, No. OF ELZ, No. MZ KRAK, and partly supported by the Polish Committee of Scientific Research under Contract No. KBN/2P03B/144/10, CICYT under Contract No. AEN99-1046-C02-02 (M. J.G. B., O.T.), RFBR under Contract No. 01-02-16685, and EC under Contract No. ERBCHGE-CT92-0003. One of us (B. J.) acknowledges support from the Alexander von Humboldt Research Foundation. |
| Databáze: | OpenAIRE |
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