Search for H7 in H2+He8 collisions

E. Yu Nikolskii, A. A. Korsheninnikov, H. Otsu, H. Suzuki, K. Yoneda, H. Baba, K. Yamada, Y. Kondo, N. Aoi, A. S. Denikin, M. S. Golovkov, A. S. Fomichev, S. A. Krupko, M. Kurokawa, E. A. Kuzmin, I. Martel, W. Mittig, T. Motobayashi, T. Nakamura, M. NiikuraS. Nishimura, A. A. Ogloblin, P. Roussel-Chomaz, A. Sanchez-Benitez, Y. Satou, S. I. Sidorchuk, T. Suda, S. Takeuchi, K. Tanaka, G. M. Ter-Akopian, Y. Togano, M. Yamaguchi

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15 Citations (Scopus)

Abstract

An experimental search for the low-lying H7 resonance was performed with the H2(He8He3)H7 reaction studied at forward center-of-mass angles (6°-14°) with a 42 MeV He8 beam. No well-pronounced peak of H7 was observed; however, the obtained spectrum was found to have a peculiarity at ∼2 MeV above the t+4n threshold. The data allow us to set a c.m.s. cross section level of ∼30 μb/sr for the low-energy part of the H7 spectrum. The test reaction H2(Be12He3)Li11, involving the same one-proton (d,He3) transfer, was studied simultaneously on a 71 A MeV satellite beam where a cross section of 1 mb/sr was measured for the population of the Li11 ground state.

Original languageEnglish
Article number064606
JournalPhysical Review C - Nuclear Physics
Volume81
Issue number6
DOIs
Publication statusPublished - 2010 Jun 16

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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