Text Formatting ⇒ subscript on isolated breve !!

[juliette]

Hello!
I'd love to get a subscirpt attached to an isolated breve (its the u-shaped accent on top of letters, but I want a full-sized isolated version of the symbol). I've tried

\fgecup - just gave me the word 'fgecup' in italics
\partialvardlanddownint - MnSymbol package made my whole document look ugly (in RevTeX 4.1)

\metre{\b} seems like a possibility, but the installation of the package looks difficult (I'm used to just putting .sty files in MikTeX folders).

Does anyone know an easy way to get typeset this ??

Thank you !!!

[juliette]

Sorry - Got it using \smallsmile_a

Sorry for the false alarm !