Nothing Special   »   [go: up one dir, main page]

CERN Accelerating science

 
:
: Comparison of detector-level probe-jet observable distributions between simulation and collision data: (a) probe-jet $\eta$ and (b) \pt. The nominal non-\ttbar background and fiducial $\ttbar \to e\mu bb$ predictions are shown in addition to the total prediction; the fiducial probe-jet histogram is not stacked on top of the non-\ttbar background, in order to show the expected fraction of fiducial events. All systematic uncertainties are included in the uncertainty on the total prediction. The first and last histogram bins do not include the underflow and overflow entries. : Caption not extracted
:
: Comparison of detector-level probe-jet observable distributions between simulation and collision data: (a) the probe-jet total charged \pt and (b) the number of tracks matched to the jet that originate from the primary vertex. The nominal non-\ttbar background and fiducial $\ttbar \to e\mu bb$ predictions are shown in addition to the total prediction; the fiducial probe-jet histogram is not stacked on top of the non-\ttbar background, in order to show the expected fraction of fiducial events. All systematic uncertainties are included in the uncertainty on the total prediction. The first and last histogram bins do not include the underflow and overflow entries. : Caption not extracted
:
: Comparison of detector-level probe-jet observable distributions between simulation and collision data: (a) the invariant mass of all track constituents of the jet secondary vertex and (b) the relative momentum of the secondary vertex transverse to the jet charged momentum, $\zbrelc = |(\pbcvec \times \pjcvec)| / |\pjcvec|^2$. The nominal non-\ttbar background and fiducial $\ttbar \to e\mu bb$ predictions are shown in addition to the total prediction; the fiducial probe-jet histogram is not stacked on top of the non-\ttbar background, in order to show the expected fraction of fiducial events. All systematic uncertainties are included in the uncertainty on the total prediction. The first and last histogram bins do not include the underflow and overflow entries. : Caption not extracted
:
:
: Comparison between simulation and collision data for detector-level observables of interest: (a) \zblc, (b) \zbtc, (c) $\rho$, and (d) \nsvtrk. The ``prior'' curve corresponds to the nominal observable prediction before unfolding; only uncertainties due to background and detector modeling are included in the uncertainty band. The ``posterior'' curve corresponds to the posterior probability at detector-level given the observed data used to unfold to particle level. Good agreement is observed between the posterior distribution and the observed data, and the posterior bands reflect the data statistical uncertainty, indicating that the unfolding model is able to describe the detector-level data. : Caption not extracted
: Caption not extracted
:
:
: Comparison of particle-level observable distributions between MC and unfolded data: (a) \zblc, (b) \zbtc, (c) $\rho$, and (d) \nsvtrk. The plotted data points correspond to the maximum likelihood for the particle-level cross-section, and the gray uncertainty band in the lower panel of each figure shows the total uncertainty on the measured cross-sections. : Caption not extracted
: Caption not extracted
:
:
: Sources of uncertainty in the $b$-jet fractions in each particle-level observable bin for (a) \zblc, (b) \zbtc, (c) $\rho$, and (d) \nsvtrk. : Caption not extracted
: Caption not extracted
:
:
: Comparison of particle-level observables between \POWPY[8] A14 variations and unfolded data for (a) \zblc, (b) \zbtc, (c) $\rho$, and (d) \nsvtrk. : Caption not extracted
: Caption not extracted
:
:
: Comparison of particle-level observables between \PYTHIA[8] tunes and unfolded data for (a) \zblc, (b) \zbtc, (c) $\rho$, and (d) \nsvtrk. : Caption not extracted
: Caption not extracted
:
:
: Comparison of particle-level observables between \POWHER[7] versions and unfolded data for (a) \zblc, (b) \zbtc, (c) $\rho$, and (d) \nsvtrk. : Caption not extracted
: Caption not extracted
:
:
: Comparison of particle-level observables between \SHERPA versions and unfolded data for (a) \zblc, (b) \zbtc, (c) $\rho$, and (d) \nsvtrk. : Caption not extracted
: Caption not extracted