Measurement of the cross section for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi></mml:math>-boson production in association with jets 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>¯</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:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>

We present a measurement of the cross section for $W$-boson production in association with jets in $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$. The analysis uses a data sample corresponding to an integrated luminosity of $320\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ collected with the CDF II detector. $W$ bosons are identified in their electron decay channel and jets are reconstructed using a cone algorithm. For each $W+\ensuremath{\ge}n\mathrm{\text{\ensuremath{-}}}\mathrm{\text{jet}}$ sample ($n=1\ensuremath{-}4$) we measure the differential cross section $d\ensuremath{\sigma}(p\overline{p}\ensuremath{\rightarrow}W+\ensuremath{\ge}n\mathrm{\text{\ensuremath{-}}}\mathrm{\text{jet}})/d{E}_{T}^{\mathrm{nth}\mathrm{\text{\ensuremath{-}}}\mathrm{jet}}\ifmmode\times\else\texttimes\fi{}\mathcal{B}(W\ensuremath{\rightarrow}e\ensuremath{\nu})$ with respect to the transverse energy ${E}_{T}$ of the $n$th-highest ${E}_{T}$ jet above 20 GeV, and the total cross section $\ensuremath{\sigma}(p\overline{p}\ensuremath{\rightarrow}W+\ensuremath{\ge}n\mathrm{\text{\ensuremath{-}}}\mathrm{\text{jet}};{E}_{T}^{\mathrm{nth}\mathrm{\text{\ensuremath{-}}}\mathrm{jet}}&gt;25\text{ }\text{ }\mathrm{GeV})\ifmmode\times\else\texttimes\fi{}\mathcal{B}(W\ensuremath{\rightarrow}e\ensuremath{\nu})$, for a restricted $W\ensuremath{\rightarrow}e\ensuremath{\nu}$ decay phase space. The cross sections, corrected for all detector effects, can be directly compared to particle level $W+\mathrm{\text{jet}}(\mathrm{s})$ predictions. We present here comparisons to leading order and next-to-leading order predictions.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.