Browsing by Author "Rogachev, Grigoriy V."

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    Final state interaction or a 3H excited state?
    (American Physical Society, 2003) Rogachev, Grigoriy V.; Hinnefeld, Jerry
    An inclusive a-particle spectrum from the 1H(6He,a) reaction has been measured at a 6He laboratory energy of 23.9 MeV. A resonancelike structure is observed at an a-particle lab energy of about 20 MeV, which corresponds to an energy of End50.6 MeV in the n-d channel. An analysis of the spectrum shows that it cannot be explained by the effect of binary final-state interactions. The hypotheses that this structure represents ~a! a new excited state of tritium or ~b! a three-body final-state interaction are discussed.
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    Proton elastic scattering from 7Be at low energies.
    (American Physical Society, 2001-01) Rogachev, Grigoriy V.; Hinnefeld, Jerry
    The elastic scattering of protons on 7Be has been measured in the energy region from 1-3.3 MeV via the thick-target technique. The data conclusively demonstrate the existence of a 2− state at an excitation energy of approximately 3.5 MeV in 8B, and rule out a predicted 1+ state near 1.4 MeV. The relevance of these results for the 7Be (p,γ) reaction, of interest in solar neutrino physics, is discussed.