![A Measurement of the Production Cross Section of Tt Pairs in Proton-antiproton Collisions at [square Root]s PDF](https://books.google.com/books/content/images/frontcover/eh5PAQAAMAAJ?fife=w150-h200)
Author: Henri BachacouPublisher:
ISBN:
Category :
Languages : en
Pages : 544
Book Description
A Measurement of the Production Cross Section of Tt Pairs in Proton-antiproton Collisions at [square Root]s
![A Measurement of the Production Cross Section of Tt Pairs in Proton-antiproton Collisions at [square Root]s PDF](https://books.google.com/books/content/images/frontcover/eh5PAQAAMAAJ?fife=w80-h100)
Author: Henri BachacouA Measurement of the Tt̄ Production Cross Section in Proton-antiproton Collisions at [square Root S]
![A Measurement of the Tt̄ Production Cross Section in Proton-antiproton Collisions at [square Root S] PDF](https://books.google.com/books/content/images/frontcover/BGIUOAAACAAJ?fife=w80-h100)
Author: Markus KluteA Measurement of the T T_bar Production Cross Section in Proton-antiproton Collisions at Sqrt(s)
Author: Markus KluteMeasurement of the $t\bar{t}$ Production Cross Section in Pp Collisions at $\sqrt{s}$
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Book Description
The top-quark pair production cross section is measured in final states with one electron or muon and one hadronically decaying [tau] lepton from the process $t\bar{t}$ to (l[nu]l) ([tau][nu][tau]) $b\bar{b}$, where l = e, [mu]. The data sample corresponds to an integrated luminosity of 19.6 fb-1 collected with the CMS detector in proton-proton collisions at $\sqrt{s}$ =8 TeV. The measured cross section [sigma]$t\bar{t}$ = 257 ± 3 (stat) ± 24 (syst) ± 7 (lumi) pb, assuming a top-quark mass of 172.5 GeV, is consistent with the standard model prediction.
Top Physics
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
We present a measurement of the t{bar t} production cross section using events with one charged lepton and jets from p{bar p} collisions at a center-of-mass energy of 1.96TeV. In these events, heavy flavor quarks from top quark decay are identified with a secondary vertex tagging algorithm. From 162 pb−1 of data collected by the Collider Detector at Fermilab, a total of 48 candidate events are selected, where 13.5 ± 1.8 events are expected from background contributions. We measure a t{bar t} production cross section of 5.6{sub -1.1}{sup _1.2}(stat.){sub -0.6}{sup +0.9}(syst.)pb.
A Measurement of the T Anti-t Production Cross-section in Proton Anti-proton Collisions at S**(1/2)
Author: Markus KlutePublisher:
ISBN:
Category :
Languages : en
Pages : 170
Book Description
A preliminary measurement of the t{bar t} production cross section at {radical}s = 1.96 TeV is presented. The {mu}-plus-jets final state is analyzed in a data sample of 94 pb{sup -1} and a total of 14 events are selected with a background expectation of 11.7 {+-} 1.9 events. The measurement yields: {sigma}{sub p{bar p} {yields} t{bar t} + X} = 2.4{sub -3.5}{sup +4.2}(stat.){sub -2.6}{sup +2.5}(syst.) {+-} 0.3(lumi.) pb. The analysis, being part of a larger effort to re-observe the top quark in Tevatron Run II data and to measure the production cross section, is combined with results from all available analyses channels. The combined result yields: {sigma}{sub p{bar p}} {yields} t{bar t} + X = 8.1{sub -2.0}{sup +2.2}(stat.){sub -1.4}{sup +1.6}(syst.) {+-} 0.8(lumi.) pb.
Measurement of the $t\bar{t}$ Production Cross Section Using Events with One Lepton and at Least One Jet in Pp Collisions at $\sqrt{s}$
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A measurement of the $\mathrm{ t \bar{t} }$ production cross section at $\sqrt{s}=$ 13 TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.3 fb$^{-1}$, collected with the CMS detector at the LHC. Final states with one isolated charged lepton (electron or muon) and at least one jet are selected and categorized according to the accompanying jet multiplicity. From a likelihood fit to the invariant mass distribution of the isolated lepton and a jet identified as coming from the hadronization of a bottom quark, the cross section is measured to be $\sigma(\mathrm{ t \bar{t} })=$ 835 $\pm$ 3 (stat) $\pm$ 23 (syst) $\pm$ 23 (lumi) pb, in agreement with the standard model prediction. Using the expected dependence of the cross section on the pole mass of the top quark ($m_{\mathrm{ t }}$), the value of $m_{\mathrm{ t }}$ is found to be 172.7$^{+2.4}_{-2.7}$ GeV.
Measurement of the Top Pair-production Cross Section in the Dilepton Channel in Proton-antiproton Collisions at [square Root] S
![Measurement of the Top Pair-production Cross Section in the Dilepton Channel in Proton-antiproton Collisions at [square Root] S PDF](https://books.google.com/books/content/images/frontcover/xgzuNwAACAAJ?fife=w80-h100)
Author: Mircea Norocel CocaMeasurement of Tt Production Cross Section in Pp Collisions at [square Root] S
![Measurement of Tt Production Cross Section in Pp Collisions at [square Root] S PDF](https://books.google.com/books/content/images/frontcover/KRerbQi0wksC?fife=w80-h100)
Author: Harpreet SinghPublisher:
ISBN:
Category : Collisions (Nuclear physics)
Languages : en
Pages : 418
Book Description
Top Physics: Measurement of the Tt-bar Production Cross Section in P Anti-p Collisions at S**(1/2)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We present a measurement of the t[bar t] production cross section using events with one charged lepton and jets from p[bar p] collisions at a center-of-mass energy of 1.96TeV. In these events, heavy flavor quarks from top quark decay are identified with a secondary vertex tagging algorithm. From 162 pb[sup -1] of data collected by the Collider Detector at Fermilab, a total of 48 candidate events are selected, where 13.5 [+-] 1.8 events are expected from background contributions. We measure a t[bar t] production cross section of 5.6[sub -1.1][sup -1.2](stat.)[sub -0.6][sup +0.9](syst.)pb.