<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Δ</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi>E</mml:mi></mml:mrow><mml:mrow><mml:mi>γ</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>30</mml:mn><mml:mn/></mml:math>keV ridge observed in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow/><mml:mrow><mml:mn>37</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Cl</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo>+</mml:mo></mml:mrow><mml:mrow><mml:mn>120</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Sn reaction
Annotatsiya
The ridge structure at $\ensuremath{\Delta}{E}_{\ensuremath{\gamma}}=\ifmmode\pm\else\textpm\fi{}$30 keV, observed previously in the reaction 187 MeV ${}^{37}\mathrm{Cl}{+}^{120}$Sn and attributed to an hyperdeformed nuclear shape, has been studied in a high statistics proton-$\ensuremath{\gamma}$ coincidence experiment. The presence of the ridge is confirmed but it is correlated to a set of $\ensuremath{\gamma}$-ray energies different from those proposed in earlier works. Some discrete transitions associated with this structure, which accounts for only $\ensuremath{\sim}3\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ of the fusion evaporation cross section, are proposed.
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