Observation of the proton-pairing vibration in 48Ca

doi:10.1016/0375-9474(86)90247-2

Nuclear Physics A

Volume 451, Issue 1, 17 March 1986, Pages 131-140

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Abstract

The two-proton transfer reaction (¹⁴C, ¹⁶O) has been investigated at 96 MeV on targets of ⁵⁰Ti and ⁴⁸Ca. The ⁴⁸Ca states at 0 MeV (0⁺), 3.83 MeV (2⁺), 4.28 MeV (0⁺) and 4.50 MeV (3⁻) and the ⁴⁶Ar ground state were excited. The 4.28 MeV 0⁺state has a transfer strength comparable to the g.s. transition to ⁴⁶Ar and a predominant proton vibrational character. The interpretation of the state as the proton-pairing vibrational state is supported by estimates of the excitation energy based on experimental binding energies.

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^a: Work supported in part by the US Department of Energy under contracts with Argonne National Laboratory and Brookhaven National Laboratory.

^b: Work supported in part by the Danish Natural Science Research Council.

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Observation of the proton-pairing vibration in 48Ca

Abstract

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Observation of the proton-pairing vibration in ⁴⁸Ca