Elsevier

Nuclear Physics A

Volume 453, Issue 4, 2 June 1986, Pages 542-590
Nuclear Physics A

Isovector transitions in 1p-shell nuclei induced by radiative pion capture

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Abstract

A systematic study of radiative pion capture transitions in 1p-shell nuclei has been performed. High-resolution photon spectra measured with a pair spectrometer for 6Li, 7Li, 9Be, 10B, 11B, 12C and 14N targets show transitions to low-lying bound states of 6He, 7He, 9Li, 10Be, 11Be, 12B and 14C respectively. The observed levels are predominantly analogs of isovector M1 states in the target nucleus. The measured branching ratios are compared to various shell-model calculations using nuclear wave functions constrained to fit other electromagnetic and weak properties of the same levels or their analogs. The data are found to be consistent with existing electron scattering data where they exist.

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  • Cited by (0)

    a

    Present address: Centre de recherches en physique des plasmas, EPFL, CH-1015 Lausanne, Switzerland.

    b

    Present address: NAGRA, CH-1015 Baden, Switzerland.

    c

    Present address: LESO EPFL, CH-1015 Lausanne, Switzerland.

    d

    Present address: Rank Xerox, Rue de Lausanne 42, CH-1201 Genève, Switzerland.

    e

    Present address: Im Tobelacker 9, CH-8044 Gockhausen, Switzerland.

    f

    Present address: IABG, D-8012 Ottobrunn, West Germany.

    g

    Present address: McKinsey Co. Inc., D-8000 München, West Germany.

    h

    Present address: SIN, CH-5234 Villigen, Switzerland.

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