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Measurement of exclusive baryon-antibaryon decays of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>χ</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mi>J</mml:mi></mml:mrow></mml:msub></mml:math>mesons
Using a sample of $2.59\ifmmode\times\else\texttimes\fi{}{10}^{7}$ $\ensuremath{\psi}(2S)$ decays collected by the CLEO-c detector, we present results of a study of ${\ensuremath{\chi}}_{cJ}$ ($J=0$, 1, 2) decays into baryon-antibaryon final states. We present the world's most precise measurements of the ${\ensuremath{\chi}}_{cJ}\ensuremath{\rightarrow}p\overline{p}$ and ${\ensuremath{\chi}}_{cJ}\ensuremath{\rightarrow}\ensuremath{\Lambda}\overline{\ensuremath{\Lambda}}$ branching fractions, and the first measurements of ${\ensuremath{\chi}}_{c0}$ decays to …