| 1 |
claudioc |
1.1 |
The CR studies described in this Section are key to validating the
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| 2 |
linacre |
1.4 |
background predictions. The CRs are defined in Section~\ref{sec:CRsel}.
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| 3 |
claudioc |
1.1 |
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| 4 |
linacre |
1.4 |
CR1 and CR2 are designed to test the $M_T$ tail in $W +$ jets and
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| 5 |
claudioc |
1.1 |
\ttbar\ respectively. Note that, as explained in Section~\ref{sec:ljbg-general},
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| 6 |
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these tails are different in the two samples because the off-shell effects
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| 7 |
vimartin |
1.3 |
are much more pronounced for $W +$ jets (the s- and t-channel single
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| 8 |
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top have the same $M_T$ tail as \ttbar). To put things in perspective,
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| 9 |
claudioc |
1.1 |
keep in mind that these
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| 10 |
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backgrounds are only about 15\% of the total, see Table~\ref{tab:srrawmcyields}.
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| 11 |
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| 12 |
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CR4 and CR5 address the dominant \ttbar\ dilepton background.
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| 13 |
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In CR4 we test the $M_T$ tail in well identified dilepton events.
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| 14 |
benhoob |
1.2 |
In CR5 we test the same quantity, but in events where the second lepton is identified
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| 15 |
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as an isolated track. Clearly CR4 and CR5 overlap.
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