Abstract
The average spin of fission fragment at specific mass asymmetry has been obtained as a function of emission angles in the $^{238}\mathrm{U}$ (${\mathrm{\ensuremath{\alpha}}}_{39.1\mathrm{M}\mathrm{e}\mathrm{V}}$,f) system from radiochemically determined independent isomeric yield ratios of $^{132}\mathrm{I}$. The fragment average spin is seen to decrease from 11.2\ensuremath{\Elzxh} to 6.5\ensuremath{\Elzxh} with change in emission angle from 90\ifmmode^\circ\else\textdegree\fi{} to 20\ifmmode^\circ\else\textdegree\fi{}, due to the angle-dependent tilting component over and above the statistical wriggling, bending, and twisting components as per the collective mode model. Effects of entrance channel parameters and multichance fission are also discussed.
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