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Observation of the decay Λ
b
0
→ pK
−
μ
+
μ
− and a search for CP violation
Name
Aaij2017_Article_ObservationOfTheDecayΛb0PKΜΜAn.pdf
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568.2 KB
Format
Adobe PDF
Checksum (MD5)
b8469bb945cf07925840a4338bf0c67e
Journal
Journal of High Energy Physics
Citation
Aaij, R., B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Observation of the Decay Λ
b
0
→ pK
−
μ
+
μ
− and a Search for CP Violation.” Journal of High Energy Physics 2017, no. 6 (June 2017). doi:10.1007/jhep06(2017)108.
Version
Final published version
Abstract
© 2017, The Author(s). A search for CP violation in the decay Λb0→ pK−μ+μ−is presented. This decay is mediated by flavour-changing neutral-current transitions in the Standard Model and is potentially sensitive to new sources of CP violation. The study is based on a data sample of proton-proton collisions recorded with the LHCb experiment, corresponding to an integrated luminosity of 3 fb−1. The Λb0→ pK−μ+μ−decay is observed for the first time, and two observables that are sensitive to different manifestations of CP violation are measured, (Formula Presented.)where the latter is based on asymmetries in the angle between the μ+μ−and pK−decay planes. These are measured to be(Formula Presented.)and no evidence for CP violation is found.[Figure not available: see fulltext.].
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Creative Commons Attribution 4.0 International License
Attribution 4.0 International
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DOI of Published Version
http://dx.doi.org/10.1007/JHEP06(2017)108
