Measurement Of The Tbart Production Cross Section In Pbar P Collisions At Sqrts
Download Measurement Of The Tbart Production Cross Section In Pbar P Collisions At Sqrts full books in PDF, epub, and Kindle. Read online free Measurement Of The Tbart Production Cross Section In Pbar P Collisions At Sqrts ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2005 |
| Genre | : |
| ISBN | : |
Download # Top Physics Book in PDF, Epub and Kindle
We present a measurement of the t{bar t} production cross section using 194 pb−1 of CDF II data using events with a high transverse momentum electron or muon, three or more jets, and missing transverse energy. The measurement assumes 100% t --> Wb branching fraction. Events consistent with t{bar t} decay are found by identifying jets containing heavy flavor semileptonic decays to muons. The dominant backgrounds are evaluated directly from the data. Based on 20 candidate events and an expected background of 9.5 " 1.1 events, we measure a production cross section of 5.3 " 3.3{sub -1.0}{sup +1.3} pb, in agreement with the standard model.
| Author | : |
| Publisher | : |
| Total Pages | : 27 |
| Release | : 2004 |
| Genre | : |
| ISBN | : |
Download Measurement of the $t\bar{t}$ Production Cross Section in $p\bar{p}$ Collisions at $\sqrt{s} Book in PDF, Epub and Kindle
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2016 |
| Genre | : |
| ISBN | : |
Download Measurement of the $B_c^{\pm}$ Production Cross Section in $p\bar{p}$ Collisions at $\sqrt{s} Book in PDF, Epub and Kindle
Here, we describe a measurement of the ratio of the cross sections times branching fractions of the Bc+ meson in the decay mode Bc+ → J/[psi][mu]+[nu] to the B+ meson in the decay mode B+ → J/[psi]K+ in proton-antiproton collisions at center-of-mass energy √s = 1.96 TeV. The measurement is based on the complete CDF Run II data set, which comes from an integrated luminosity of 8.7 fb-1. The ratio of the production cross sections times branching fractions for Bc+ and B+ mesons with momentum transverse to the beam greater than 6 GeV/c and rapidity magnitude smaller than 0.6 is 0.211 ± 0.012(stat)-0.020+0.021(syst). Using the known B+ → J/[psi]K+ branching fraction, the known B+ production cross section, and a selection of the predicted Bc+ → J/[psi][mu]+[nu] branching fractions, the range for the total Bc+ production cross section is estimated.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2011 |
| Genre | : |
| ISBN | : |
Download Measurement of the $ZZ$ Production Cross Section in $p\bar{p}$ Collisions at $\sqrt{s} Book in PDF, Epub and Kindle
The authors present a new measurement of the production cross section [sigma](pp̄ = ZZ) at a center-of-mass energy √s = 1.96 TeV, obtained from the analysis of the four charged lepton final state l+l-l`+l`- (l, l` = e or [mu]). They observe ten candidate events with an expected background of 0.37 ± 0.13 events. The measured cross section [sigma](pp̄ =ZZ) = 1.26-0.37+0.47 (stat) ± 0.14 (syst) pb is in agreement with NLO QCD predictions. This result is combined with a previous result from the ZZ = l+l- [nu][̄nu] channel resulting in a combined cross section of [sigma](pp̄ = ZZ) = 1.40-0.37+0.43 (stat) ±0.14 (syst) pb.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2005 |
| Genre | : |
| ISBN | : |
Download Measurement of the T Anti-t Production Cross Section in P-pbar Collisions at S**(1/2) Book in PDF, Epub and Kindle
Abstract Not Provided.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2005 |
| Genre | : |
| ISBN | : |
Download Measurement of W and Z Production Cross-sections in P[bar P] Collisions at [radical] Book in PDF, Epub and Kindle
The cross sections for W and Z production in p[bar p] collisions at [radical]s = 1.8 TeV are measured using the D0 detector at the Fermilab Tevatron collider. The detected final states are W [yields] ev[sub e], Z [yields] e[sup +]e[sup [minus]], W [yields] [mu]v[sub [mu]], and Z [yields] [mu][sup +][mu][sup [minus]]. In the ratio of these measurements, many common sources of systematic error cancel and we measure R = [sigma], (p[bar p] [yields] W) [center-dot] Br(W [yields] lv)/ [sigma], (p[bar p] [yields] Z) [center-dot] Br(Z [yields] l[sup +]l[sup [minus]]). Assuming standard model couplings, this result is used to determine the width of the W bosom and to set a limit on the decay W[sup +] [yields] t[bar b].
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2001 |
| Genre | : |
| ISBN | : |
Download The B[bar B] Production Cross Section and Correlations in P[bar P] Collisions At[radical] Book in PDF, Epub and Kindle
The authors present measurements of the b[bar b] production cross section and angular correlations between the b and[bar b]-quarks in p[bar p] collisions using the D0 detector at the Fermilab Tevatron operating at[radical]s= 1.8 TeV. The b-quark production cross section for[vert-bar]y[sup b][vert-bar]1.0 and[rho][sub[tau]][sup b] 8 GeV/c is extracted and found to be consistent with next-to-leading order QCD predictions. In addition, the angular correlations between the b and[bar b]-quarks are found to agree in shape with next-to-leading order QCD predictions.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2010 |
| Genre | : |
| ISBN | : |
Download Measurement of the Ttbar Production Cross Section in Ppbar Collisions at Sqrt(s) Book in PDF, Epub and Kindle
We present a measurement of the top quark pair production cross section in p{bar p} collisions at √s = 1.96 TeV using a data sample corresponding to 1.7 fb−1 of integrated luminosity collected with the Collider Detector at Fermilab. We reconstruct t{bar t} events in the lepton+jets channel, consisting of e[nu]+jets and [mu][nu]+jets final states. The dominant background is the production of W bosons in association with multiple jets. To suppress this background, we identify electrons from the semileptonic decay of heavy-flavor jets ('soft electron tags'). From a sample of 2196 candidate events, we obtain 120 tagged events with a background expectation of 51 ± 3 events, corresponding to a cross section of [sigma]{sub t{bar t}} = 7.8 ± 2.4 (stat) ± 1.6 (syst) ± 0.5 (lumi) pb. We assume a top-quark mass of 175 GeV/c2. This is the first measurement of the t{bar t} cross section with soft electron tags in Run II of the Tevatron.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2014 |
| Genre | : |
| ISBN | : |
Download Measurement of Differential $t\bar{t}$ Production Cross Sections in $p\bar{p}$ Collisions Book in PDF, Epub and Kindle
| Author | : |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1967 |
| Genre | : |
| ISBN | : |
Download Modern Drawings and Watercolours Book in PDF, Epub and Kindle
