Additional Preliminary Plots of the Charm Meson Correlation Analysis

Additional Preliminart Plots for the Measurement of Charm Meson Pair Cross Sections

Inclusive Yields

Mass plot of inclusive D⁰->Kπ candidates.

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Mass plot of inclusive D⁺->Kππ candidates.

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Mass plot of inclusive D⁺->D⁰π->(Kπ)π candidates.

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Mass plot of inclusive D_s⁺->Φπ->(KK)π candidates.

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Pair Yields

Definition of two dimensional side bands
This Figure illustrates the two dimensional signal region and side band definitions. The signal region is indicated by the green square, the blue squares are the regions where a true trigger (probe) D⁰ meson is combined with a probe (trigger) D⁰ candidate from the combinatorial background. The pair candidates from background-background combinations, are subtracted twice. This is compensated by adding the pair candidates from the red regions.

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D⁰D*^- Pairs

Mass of the trigger side D⁰
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Mass of soft pion tagged probe side D⁰.
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Probe side D*-D⁰ mass difference.
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Raw yields of D⁰D*^- pairs vs. DeltaPhi.
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D⁺D*^- Pairs

Mass of the trigger side D⁺
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Mass of soft pion tagged probe side D⁰.
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Probe side D*-D⁰ mass difference.
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Raw yields of D⁺D*^- pairs vs. DeltaPhi.
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D*⁺D*^- Pairs

Mass of the soft pion tagged trigger side D⁰
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Mass of soft pion tagged probe side D⁰.
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Probe side D*-D⁰ mass difference.
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Raw yields of D*⁺D*^- pairs vs. DeltaPhi.
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D_s⁺D*^- Pairs

Mass of the trigger side D_s⁺
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Mass of soft pion tagged probe side D⁰.
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Probe side D*-D⁰ mass difference.
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Raw yields of D_s⁺D*^- pairs vs. DeltaPhi.
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Variables with sensitivity for separating prompt and secondary pairs
All plots are for D⁰D*^- pairs.

Data MC comparison of the impact parameter of the triggered D⁰.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.
Click here to retrieve the eps or href="gif/DzeroDstar__DD_IpDTrig.gif">gif file of the plot. Back to list of figures.

Data MC comparison of the impact parameter of the soft pion tagged probe side D⁰.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.
Click here to retrieve the eps or the gif file of the plot. Back to list of figures.

Data MC comparison of the transverse decay length the triggered D⁰.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.
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Data MC comparison of the transverse decay length of the soft pion tagged probe side D⁰.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.
Click here to retrieve the eps or the gif file of the plot. Back to list of figures.

Data MC comparison of the transverse decay length the triggered D⁰.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The prompt MC alone fails to descrribe the data distribution. Click here to retrieve the eps of the gif file of the plot. Back to list of figures.

Data MC comparison of the transverse decay length of the soft pion tagged probe side D⁰.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The prompt MC alone fails to descrribe the data distribution. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.

Data MC comparison of the impact parameter of the D⁰D*^- pair.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.
Click here to retrieve the eps or the gif file of the plot. Back to list of figures.

Data MC comparison of the transverse decay length of the D⁰D*^- pair.
The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.
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Data Monte Carlo Comparisons

Data MC comparison of the triggered D⁰ and probe D*^-.
The transverse momentum, the pseudo rapidity and azimuth of both D mesons are shown.

The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.

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Data MC comparison for the decay daughters of the triggered D⁰. The transverse momentum, the pseudo rapidity and azimuth of the decay Kaon and pion are shown.

The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.

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Data MC comparison for the decay daughters of the probe D*^-.
The transverse momentum, the pseudo rapidity and azimuth of the Kaon and pion of the D⁰ decay aswell as the tagging soft pion are shown.

The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data.

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Burkard Reisert
Last modified: Mon Mar 06 19:49:18 MET 2007

Mass of the trigger side D⁰ Click here to retrieve the eps the gif file of the plot. Back to list of figures.	Mass of soft pion tagged probe side D⁰. Click here to retrieve the eps the eps file of the plot. Back to list of figures.
Probe side D*-D⁰ mass difference. Click here to retrieve the eps the gif file of the plot. Back to list of figures.	Raw yields of D⁰D*^- pairs vs. DeltaPhi. Click here to retrieve the eps the gif file of the plot. Back to list of figures.

Mass of the trigger side D⁺ Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Mass of soft pion tagged probe side D⁰. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.
Probe side D*-D⁰ mass difference. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Raw yields of D⁺D*^- pairs vs. DeltaPhi. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.

Mass of the soft pion tagged trigger side D⁰ Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Mass of soft pion tagged probe side D⁰. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.
Probe side D*-D⁰ mass difference. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Raw yields of D⁺D^- pairs vs. DeltaPhi. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.

Mass of the trigger side D_s⁺ Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Mass of soft pion tagged probe side D⁰. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.
Probe side D*-D⁰ mass difference. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Raw yields of D_s⁺D*^- pairs vs. DeltaPhi. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.

Data MC comparison of the impact parameter of the triggered D⁰. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data. Click here to retrieve the eps or href="gif/DzeroDstar__DD_IpDTrig.gif">gif file of the plot. Back to list of figures.	Data MC comparison of the impact parameter of the soft pion tagged probe side D⁰. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.
Data MC comparison of the transverse decay length the triggered D⁰. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Data MC comparison of the transverse decay length of the soft pion tagged probe side D⁰. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.
Data MC comparison of the transverse decay length the triggered D⁰. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The prompt MC alone fails to descrribe the data distribution. Click here to retrieve the eps of the gif file of the plot. Back to list of figures.	Data MC comparison of the transverse decay length of the soft pion tagged probe side D⁰. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D*^- pairs as found in data. The prompt MC alone fails to descrribe the data distribution. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.
Data MC comparison of the impact parameter of the D⁰D^- pair. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.	Data MC comparison of the transverse decay length of the D⁰D^- pair. The combinatorial backbround has been eliminated by a two-dimensional sideband subtraction. The MC has been normalized to the same number of D⁰D^- pairs as found in data. The relative fraction of ccbar and bbbar MC events has been adjusted to the value found in data. Click here to retrieve the eps or the gif file of the plot. Back to list of figures.