First Measurement of the $\lowercase{\ttbar}$ Differential Cross Section $\lowercase{d\sigma/d}M_{\lowercase{{t\overline{t}}}}$ in $\lowercase{\ppbar}$ Collisions at $\sqrt{\lowercase{s}}=1.96$ TeV

We present a measurement of the $\ttbar$ differential cross section with respect to the $\ttbar$ invariant mass, dSigma/dMttbar, in $\ppbar$ collisions at $\sqrt{s} = 1.96$ TeV using an integrated luminosity of $2.7 \invfb$ collected by the CDF II experiment. The $\ttbar$ invariant mass spectrum is sensitive to a variety of exotic particles decaying into $\ttbar$ pairs. The result is consistent with the standard model expectation, as modeled by $PYTHIA$ with $CTEQ5L$ parton distribution functions.

First Measurement of the $\lowercase \ttbar$ Differential Cross Section $\lowercase d σ / d M_{\lowercase t \overline{t}}$ in $\lowercase \ppbar$ Collisions at $\sqrt{\lowercase s} = 1.96$ TeV

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First Measurement of the $\lowercase \ttbar$ Differential Cross Section $\lowercase d σ / d M_{\lowercase t \overline{t}}$ in $\lowercase \ppbar$ Collisions at $\sqrt{\lowercase s} = 1.96$ TeV

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First Measurement of the \lowercase\ttbar\lowercase\ttbar Differential Cross Section \lowercasedσ/dM\lowercasett‾\lowercasedσ/dM\lowercasett​ in \lowercase\ppbar\lowercase\ppbar Collisions at \lowercases=1.96\lowercases​=1.96 TeV

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First Measurement of the \lowercase\ttbar\lowercase\ttbar Differential Cross Section \lowercasedσ/dM\lowercasett‾\lowercasedσ/dM\lowercasett​ in \lowercase\ppbar\lowercase\ppbar Collisions at \lowercases=1.96\lowercases​=1.96 TeV

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First Measurement of the $\lowercase \ttbar$ Differential Cross Section $\lowercase d σ / d M_{\lowercase t \overline{t}}$ in $\lowercase \ppbar$ Collisions at $\sqrt{\lowercase s} = 1.96$ TeV

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First Measurement of the $\lowercase \ttbar$ Differential Cross Section $\lowercase d σ / d M_{\lowercase t \overline{t}}$ in $\lowercase \ppbar$ Collisions at $\sqrt{\lowercase s} = 1.96$ TeV

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