Search for CP violation in Lambda(0)(b)-> pK(-) and Lambda(0)(b) -> p pi(-) decays



Aaij, R, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M
et al (show 827 more authors) (2018) Search for CP violation in Lambda(0)(b)-> pK(-) and Lambda(0)(b) -> p pi(-) decays. PHYSICS LETTERS B, 787. pp. 124-133.

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Abstract

A search for $C\!P$ violation in $\Lambda^0_b \to p K^-$ and $\Lambda^0_b \to p \pi^-$ decays is presented using a sample of $pp$ collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0 fb$^{-1}$. The $C\!P$-violating asymmetries are measured to be $A_{\mathrm{CP}}^{pK^-} = -0.020 \pm 0.013\pm 0.019$ and $A_{\mathrm{CP}}^{p\pi^-} = -0.035 \pm 0.017 \pm 0.020 $, and their difference $A_{\mathrm{CP}}^{pK^-}-A_{\mathrm{CP}}^{p\pi^-} = 0.014 \pm 0.022 \pm 0.010$, where the first uncertainties are statistical and the second systematic. These are the most precise measurements of such asymmetries to date.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2018-025.html
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 09 May 2019 09:38
Last Modified: 19 Jan 2023 00:48
DOI: 10.1016/j.physletb.2018.10.039
Open Access URL: http://10.0.3.248/j.physletb.2018.10.039
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3040398