Measurement Of Boldsymbol Ttb Production In The Tau Jets Channel Using Boldsymbol P Bar P Collisions At Boldsymbol Sqrt S
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Measurement Of Boldsymbol Ttb Production In The Tau Jets Channel Using Boldsymbol P Bar P Collisions At Boldsymbol Sqrt S
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Author :
language : en
Publisher:
Release Date : 2010
Measurement Of Boldsymbol Ttb Production In The Tau Jets Channel Using Boldsymbol P Bar P Collisions At Boldsymbol Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
We present a measurement of the t{bar t} production cross section multiplied by the branching ratio to tau lepton decaying semi-hadronically ([tau]{sub h}) plus jets, [sigma](p{bar p} → t{bar t} + X) · BR(t{bar t} → [tau]{sub h} + jets), at a center of mass energy √s = 1.96 TeV using 1 fb−1 of integrated luminosity collected with the D0 detector. Assuming a top quark mass of 170 GeV, we measure [sigma]{sub t{bar t}} · BR{sub [tau]{sub h}+j} = 0.60{sub -0.22}{sup +0.23}(stat){sub -0.14}{sup +0.15}(syst)±0.04 (lumi) pb. In addition, we extract the t{bar t} production cross section using the t{bar t} → {tau}{sub h} + jets topology, with the result [sigma]{sub t{bar t}} = 6.9{sub -1.2}{sup +1.2}(stat){sub -0.7}{sup +0.8}(syst) ± 0.4 (lumi) pb. These findings are in good agreement with standard model predictions and measurements performed using other top quark decay channels.
Measurement Of The Ttbar Interaction Cross Section In The Tau Jets Decay Channel Via Multivariable Template Fitting Of 4 6 Fb 1 Of Data Collected At S
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Author : William P. Edson
language : en
Publisher:
Release Date : 2014
Measurement Of The Ttbar Interaction Cross Section In The Tau Jets Decay Channel Via Multivariable Template Fitting Of 4 6 Fb 1 Of Data Collected At S written by William P. Edson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Hadron interactions categories.
Measurement Of The T Bar T Production Cross Section In The Dilepton Channel In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2013
Measurement Of The T Bar T Production Cross Section In The Dilepton Channel In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Measurement Of The Tt Bar Production Cross Section In The Dilepton Channel At Cdf
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Author : Reda Tafirout
language : en
Publisher:
Release Date : 2004
Measurement Of The Tt Bar Production Cross Section In The Dilepton Channel At Cdf written by Reda Tafirout and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
We report a measurement of the t{bar t} production cross section using dilepton events with jets and missing transverse energy in p{bar p}collisions at {radical}s = 1.96 TeV. Using 197 pb{sup -1} of data recorded by the upgraded Collider Detector at Fermilab (CDF II), we use two complementary techniques to select candidate events. The combined result yields a t{bar t} production cross section of 7.0{sub -2.1}{sup +2.4}(stat){sub -1.1}{sup +1.6}(syst) {+-} 0.4(luminosity)pb which is consistent with the Standard Model.
Measurement Of The Ttbar Production Cross Section At S 1 2
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Author :
language : en
Publisher:
Release Date : 2005
Measurement Of The Ttbar Production Cross Section At S 1 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
A measurement of the t[bar t] production cross section in the lepton+jets channels with the D0 detector at [radical]s = 1.96 TeV using the lifetime-tagging techniques is presented. The t[bar t] cross section is estimated from the combination of the e+jets and [mu]+jets channels. The obtained result [sigma][sub tt][sup -] = 7.47 [sub -1.14][sup +1.22](stat)[sub -1.03][sup +1.65](syst) [+-] 0.49 (lumi) pb is consistent with the Standard Model expectation.
Erratum
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Author :
language : en
Publisher:
Release Date : 2014
Erratum written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
T Anti T Production Cross Section Measurement Using Soft Electron Tagging In P Anti P Collisions At S 1 2
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Author :
language : en
Publisher:
Release Date : 2008
T Anti T Production Cross Section Measurement Using Soft Electron Tagging In P Anti P Collisions At S 1 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
We measure the production cross section of t{bar t} events in p{bar p} collisions at √s = 1.96 TeV. The data was collected by the CDF experiment in Run 2 of the Tevatron accelerator at the Fermi National Accelerator Laboratory between 2002 and 2007. 1.7 fb−1 of data was recorded during this time period. We reconstruct t{bar t} events in the lepton+jets channel, whereby one W boson - resulting from the decay of the top quark pairs - decays leptonically and the other hadronically. The dominant background to this process is the production of W bosons in association with multiple jets. To distinguish t{bar t} from background, we identify soft electrons from the semileptonic decay of heavy flavor jets produced in t{bar t} events. We measure a cross section of [sigma]{sub p{bar p}} = 7.8 ± 2.4(stat) ± 1.6(syst) ± 0.5(lumi).
A Measurement Of The T Anti T Production Cross Section In P Anti P Collisions At S 1 2
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Author :
language : en
Publisher:
Release Date : 2008
A Measurement Of The T Anti T Production Cross Section In P Anti P Collisions At S 1 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
I present a measurement of the t{bar t} production cross section at √s = 1.96 TeV using 2034 pb−1 of CDF Run II data using events with a high transverse momentum electron or muon, three or more jets, and missing transverse energy. The measurement assumes a t → Wb branching fraction of 100 percent. 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 248 candidate events and an expected background of 86.8 ± 5.6 events, I measure a production cross section of 8.7 ± 1.1{sub -0.8}{sup +0.9} ± 0.6 pb, in agreement with the Standard Model.
Search For The Production Of Narrow T Anti B Resonances In 1 9 Fb 1 Of P Anti P Collisions At S
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Author :
language : en
Publisher:
Release Date : 2009
Search For The Production Of Narrow T Anti B Resonances In 1 9 Fb 1 Of P Anti P Collisions At S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
We present new limits on resonant tb production in ppbar collisions at sqrt(s) = 1.96 TeV, using 1.9 fb−1 of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a putative tb mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb production as modeled by W′ → tb. We set a new limit on a right-handed W′ with standard model-like coupling, excluding any mass below 800 GeV at 95% C.L. For any narrow W′-like state with mass above 800 GeV, the cross-section is found to be less than 0.28 pb at 95% C.L. We also present an exclusion of the W′ coupling strength versus W′ mass.