W + Jet Production at Cdf
نویسنده
چکیده
The cross section for the inclusive production of W bosons in association with jets in pp̄ collisions at √ s = 1.96 TeV using the Collider Detector at Fermilab (CDF II) is presented. The measurement is based on an integrated luminosity of 320 pb, and includes events with up to 4 or more jets. In each jet multiplicity sample the differential and cumulative cross sections with respect to the transverse energy of the i−jet are measured. For W+ ≥ 2 jets the differential cross section with respect to the 2-leading jets invariant mass mj1j2 and angular separation ∆Rj1j2 is also reported. The data are compared to predictions from Monte Carlo simulations.
منابع مشابه
Combination of Single Top Quark Production Results from CDF
Recently, the CDF experiment at the Fermilab Tevatron has used complementary methods to make multiple measurements of the singly produced top quark cross section. All analyses use the same dataset with more than 2 fb of CDF data and event selection based on W + 2 or W + 3 jet events with at least one b-tagged jet. However, due to differences in analysis techniques these results are not fully co...
متن کاملResults on Qcd Physics from the Cdf-ii Experiment
In this paper we review a selection of recent results obtained, in the area of QCD physics, from the CDF-II experiment that studies p¯ p collisions at √ s=1.96 TeV provided by the Fermilab Tevatron Collider. All results shown correspond to analysis performed using the Tevatron Run II data samples. In particular we will illustrate the progress achieved and the status of our studies on the follow...
متن کاملhep - ph / 9706536 W + 1 jet to W + 0 jet Ratio at the Tevatron : A Hint of New Physics ?
We interpret the reported disagreement between the measured ratio, R 10 , of the W + 1 jet cross-section to the W + 0 jet cross-section at the Tevatron and the Standard Model (SM) prediction, as the effect of interactions mediated by a colour-octet analogue of the W boson, the W 8. The presence of a W 8 with mass O(300) GeV, and with couplings to quarks and gluons of the order of electroweak st...
متن کاملTop Pair Production Cross-section Measurement in the All-hadronic Channel at Cdf and Dø
Measurements of the tt̄ production cross-section at √ s = 1.96 TeV in proton-antiproton collisions were performed by the CDF and DØ collaborations using tt̄ final states where both W ’s decay hadronically. Each experiment uses luminosity of about 160 pb of data collected during Run II of the Fermilab Tevatron collider. Beside kinematical observables both experiments take advantage of identifying ...
متن کاملInclusive Jet Production at CDF
We present results on inclusive jet production in proton-antiproton collisions at √ s = 1.96 TeV. The measurements are based on 1.0 fb−1 of CDF Run II data and were carried out for jets in five different jet rapidity regions up to | Y |=2.1. Both the midpoint cone based algorithm and kT algorithm were investigated to reconstruct the jets. The results are compared to next-to-leading order pertur...
متن کامل