The energy (in keV) and spin-parity values E (JP) of the low lying excited states of a nucleus of mass number A = 152, are 122(2+), 366(4+), 707 (6+), and 1125(8+). It may be inferred that these energy levels correspond to a
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rotational spectrum of a deformed nucleus
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rotational spectrum of a spherically symmetric nucleus
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vibrational spectrum of a deformed nucleus
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vibrational spectrum of a spherically symmetric nucleus