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Notes to Record weekly meeting of $B^- \to \Lambda^0 \bar{p} p \bar{p}$ analysis.

$K^{*0}(892) \to K^+\pi^-$

Mar. 3, 2023

Feb. 24, 2023: Discussion on strppingline, background and dec files

* In the following work, StrippingB2fourbodyLine will be used for signal channel. The B2fourbodyline has merged LambdaDD and LambdaLL together. So the DD and LL events will be categorized by tracks offline and some sorts of preselection will be applied.

* Taking $B^+ \to (J\psi\to p\bar{p}) \Lambda^0\bar{p}$ and $B^+ \to p\bar{p}p\bar{p}$\pi^+$ as potential background to signal. The former has been measured with good precision(clean but small expected contribution with a BF ~ 2 x 10-8). And specialized MC simulation will be generated to study such decays.

* Dec files containting kaon and pion combinations for nom. channel will be prepared. Each file for each of the seven combinations, and corresponding MC will be produced.

* The submitted job to retrieve 2016 MagDown data for normalization channel is almost finished. In the next few days, we can study the normalization channels of B+ -> lambda0bar p pipi/KK first. And this analysis is a blinded analysis for the signal decay.

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Topic revision: r1 - 2023-02-25 - YingaoTang
 
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