Observation of Two Resonances in the Λ b 0 π ± Systems and Precise Measurement of Σ b ± and Σ b * ± Properties

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Observation of Two Resonances in the Λ b 0 π ± Systems and Precise Measurement of Σ b ± and Σ b * ± Properties

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PhysRevLett.122.012001.pdf

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Date Issued

2019

Journal

Physical Review Letters

Publisher

American Physical Society (APS)

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Final published version

Abstract

© 2019 CERN. The first observation of two structures consistent with resonances in the final states Λb0π- and Λb0π+ is reported using samples of pp collision data collected by the LHCb experiment at s=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. The ground states Σb± and Σb∗± are also confirmed and their masses and widths are precisely measured.

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Creative Commons Attribution 4.0 International license

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https://hdl.handle.net/1721.1/133970

DOI of Published Version

10.1103/PHYSREVLETT.122.012001