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Level densities and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi></mml:math>-strength functions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>1</mml:mn><mml:mn>4</mml:mn><mml:mn>8</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn><mml:mn>4</mml:mn><mml:mn>9</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Sm</mml:mi></mml:math>
The level densities and $\ensuremath{\gamma}$-strength functions of the weakly deformed ${}^{148}\mathrm{Sm}$ and ${}^{149}\mathrm{Sm}$ nuclei have been extracted. The temperature versus excitation energy curve, derived within the framework of the microcanonical ensemble, shows structures, which we associate with the breakup of Cooper pairs. The nuclear heat capacity is deduced within the …