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- W4302851712 abstract "The $C!P$-violating flavour-specific asymmetry in neutral $b$ mesons provides a method for testing the Standard Model. The measurements from the D0 experiment yield values of this asymmetry that disagree with the Standard Model at a level of 3.6 $sigma$. This contribution discusses the latest LHCb measurements in this sector both from $B^0$ mesons ($a_{mathrm{sl}}^d$) and $B^0_s$ mesons ($a_{mathrm{sl}}^s$). Using their 2011 dataset, corresponding to an integrated luminosity of 1.0 $mathrm{fb}^{-1}$ obtained in 2011, LHCb measured a value of $a_{mathrm{sl}}^s = (-0.06 pm 0.50_{text{stat}} pm 0.36_{text{syst}}) %$. Combining the 2011 and 2012 datasets, with an integrated luminosity of 3 $mathrm{fb}^{-1}$, LHCb measured $a_{mathrm{sl}}^d = (-0.02 pm 0.19_{text{stat}} pm 0.30_{text{syst}}) %$. These are the most precise measurements of the parameters $a_{mathrm{sl}}^s$ and $a_{mathrm{sl}}^d$ to date. Plans for an updated result for $a_{mathrm{sl}}^s$ using the full 3 $mathrm{fb}^{-1}$ dataset are discussed. This will include new methods to determine detection asymmetries which are the dominating systematic uncertainty of the 2011 measurement." @default.
- W4302851712 created "2022-10-07" @default.
- W4302851712 creator A5066734299 @default.
- W4302851712 date "2015-02-23" @default.
- W4302851712 modified "2023-10-18" @default.
- W4302851712 title "Measuring Semileptonic Asymmetries in LHCb" @default.
- W4302851712 doi "https://doi.org/10.48550/arxiv.1502.06413" @default.
- W4302851712 hasPublicationYear "2015" @default.
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