Study of jet shapes in inclusive jet production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo stretchy="true">¯</mml:mo></mml:mover></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>1.96</mml:mn><mml:mtext>   </mml:mtext><mml:mi>TeV</mml:mi></mml:math>

We report on a study of jet shapes in inclusive jet production in $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\mathrm{TeV}$ using the upgraded collider detector at Fermilab in Run II (CDF II) and based on an integrated luminosity of $170\text{ }\mathrm{p}{\mathrm{b}}^{\ensuremath{-}1}$. Measurements are carried out on jets with rapidity $0.1&lt;|{Y}^{\mathrm{jet}}|&lt;0.7$ and transverse momentum $37\text{ }\text{ }\mathrm{GeV}/c&lt;{P}_{T}^{\mathrm{jet}}&lt;380\text{ }\text{ }\mathrm{GeV}/c$. The jets have been corrected to the hadron level. The measured jet shapes are compared to leading-order QCD parton-shower Monte Carlo predictions as implemented in the PYTHIA and HERWIG programs. PYTHIA, tuned to describe the underlying event as measured in CDF Run I, provides a better description of the measured jet shapes than does PYTHIA or HERWIG with their default parameters.