Measurement Of The Ratio Of Inclusive Cross Sectionsp Pz B Jetp Pz Jet In The Dilepton Final States
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Total Pages | : 190 |
Release | : 2010 |
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Download Measurement of the Ratio of Inclusive Cross Sections!(p-p!Z+b-jet)!(p-p!Z+jet) in the Dilepton Final States Book in PDF, Epub and Kindle
The inclusive production of b-jets with a Z boson is an important background to searches for the Higgs boson in associated ZH → llb{bar b} production at the Fermilab Tevatron collider. This thesis describes the most precise measurement to date of the ratio of inclusive cross sections [sigma](p{bar p} → Z + b-jet)/[sigma](p{bar p} → Z + jet) when a Z boson decays into two electrons or muons. The measurement uses a data sample from p{bar p} collisions at the center of mass energy √s = 1.96 TeV corresponding to an integrated luminosity of 4.2 fb−1 collected by the D0 detector. The measured ratio [sigma](Z + b-jet)/[sigma](Z + jet) is 0.0187 ± 0.0021(stat) ± 0.0015(syst) for jets with transverse momentum p{sub T} > 20 GeV and pseudorapidity.
Author | : Kenneth James Smith |
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Total Pages | : 165 |
Release | : 2011 |
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Download Measurement of the Ratio of Inclusive Cross Sections Sigma(Z+b-jet)/sigma(Z+jet) in the Dilepton Final States Book in PDF, Epub and Kindle
The inclusive production of $b$-jets with a $Z$ boson is an important background to searches for the Higgs boson in associated $ZH \rightarrow llb\bar{b}$ production at the Fermilab Tevatroncollider. This thesis describes the most precise measurement to date of the ratio of inclusive cross sections $\sigma(p\bar{p} \rightarrow Z+b$-jet$)/\sigma(p\bar{p} \rightarrow Z+$jet$)$ when a $Z$ boson decays into two electrons or muons. The measurement uses a data sample from $p\bar{p}$ collisions at the center of mass energy $\sqrt{s}=1.96$ TeV corresponding to an integrated luminosity of 4.2 fb$^{-1}$ collected by the D0 detector. The measured ratio $\sigma(Z+b$-jet$)/\sigma(Z+$jet$)$ is $0.0187\pm0.0021(stat.) \pm0.0015(syst)$ for jets with transverse momentum $p_T$~$>$~20 GeV and pseudorapidity $\eta\leq$2.5. The measurement is compared with the next-to-leading order theoretical predictions from MCFM and is found to be consistent within uncertainties.
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Total Pages | : 190 |
Release | : 2010 |
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Download Measurement of the Ratio of Inclusive Cross Sections ?(p-$\bar{p}${u2192}Z+b-jet) /?(p-$\bar{p}${u2192}Z+jet) in the Dilepton Final States Book in PDF, Epub and Kindle
The inclusive production of b-jets with a Z boson is an important background to searches for the Higgs boson in associated ZH → llb$ar{b}$ production at the Fermilab Tevatron collider. This thesis describes the most precise measurement to date of the ratio of inclusive cross sections ?(p$ar{p}$ → Z + b-jet)/?(p$ar{p}$ → Z + jet) when a Z boson decays into two electrons or muons. The measurement uses a data sample from p$ar{p}$ collisions at the center of mass energy √s = 1.96 TeV corresponding to an integrated luminosity of 4.2 fb-1 collected by the D0 detector. The measured ratio ?(Z + b-jet)/?(Z + jet) is 0.0187 ± 0.0021(stat) ± 0.0015(syst) for jets with transverse momentum pT > 20 GeV and pseudorapidity.
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Total Pages | : 9 |
Release | : 2015 |
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Download Measurement of the Ratio of Inclusive Cross Sections $\sigma (p\bar{p} \rightarrow Z+2~b~\text{jets}) Book in PDF, Epub and Kindle
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Release | : 2010 |
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Download A Measurement of the Ratio of Inclusive Cross Sections $\sigma(p\bar{p}\rightarrow Z+b{\rm\, Jet})/ \sigma(p\bar{p}\rightarrow Z+{\rm Jet})$ at $\sqrt{s} Book in PDF, Epub and Kindle
The ratio of the cross section for p{bar p} interactions producing a Z boson and at least one b quark jet to the inclusive Z+jet cross section is measured using 4.2 fb−1 of p{bar p} collisions collected with the D0 detector at the Fermilab Tevatron collider at √s = 1.96 TeV. The Z → l+l− candidate events with at least one b jet are discriminated from Z+ charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. The measured ratio is 0.0193 ± 0.0027 for events having a jet with transverse momentum p{sub T} > 20 GeV and pseudorapidity.
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Total Pages | : 259 |
Release | : 2005 |
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Download Measurement of the Ratio of Inclusive Cross Sections ? (p Anti-p {u2192} Z + B-jet) Book in PDF, Epub and Kindle
Using the data collected with the D0 detector at √s = 1.96 TeV with integrated luminosities of about 180 pb-1, we have measured the ratio of inclusive cross sections for p$ar{p}$ → Z + b-jet to p$ar{p}$ → Z + jet production. The inclusive Z + b-jet reaction is an important background to searches for the Higgs boson in associated ZH production at the Fermilab Tevatron collider and is sensitive to the b quark content of the proton. This thesis describes our measurement which is performed using the dimuon decay channel of the Z boson, id est Z → ?+?-. The ratio in the dimuon channel is measured to be 1.86 ± 0.44(stat)$+0.24top{-0.28}$(syst)% for hadronic jets with transverse momenta pT > 20 GeV/c and pseudorapidities.
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Release | : 2006 |
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Download Measurement of the Ratio of Inclusive Cross Sections Sigma (p Anti-p --] Z + B-jet) Book in PDF, Epub and Kindle
Abstract Not Provided.
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Release | : 2013 |
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Download Measurement of the Ratio of the Inclusive 3-jet Cross Section to the Inclusive 2-jet Cross Section in Pp Collisions at $\sqrt{s}$ Book in PDF, Epub and Kindle
Author | : Yildirim Doğan Mutaf |
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Total Pages | : 456 |
Release | : 2005 |
Genre | : Electroweak interactions |
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Download Measurement of the Ratio of Inclusive Cross Sections [sigma](pp̄ --> Z + B-jet)/[sigma](pp̄ --> Z + Jet) at [square Roots] Book in PDF, Epub and Kindle
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Release | : 2014 |
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Download Measurement of the Ratio of Inclusive Jet Cross Sections Using the Anti-kt Algorithm with Radius Parameters R Book in PDF, Epub and Kindle
Measurements of the inclusive jet cross section with the anti-kt clustering algorithm are presented for two radius parameters, R=0.5 and 0.7. They are based on data from LHC proton-proton collisions at $\sqrt{s}$ = 7 TeV corresponding to an integrated luminosity of 5.0 inverse femtobarns collected with the CMS detector in 2011. The ratio of these two measurements is obtained as a function of the rapidity and transverse momentum of the jets. Significant discrepancies are found comparing the data to leading-order simulations and to fixed-order calculations at next-to-leading order, corrected for nonperturbative effects, whereas simulations with next-to-leading-order matrix elements matched to parton showers describe the data best.