The first observation of two structures consistent with resonances in the final states Λ_b^0π^- and Λ_b^0π^+ is reported using samples of pp collision data collected by the LHCb experiment at sqrt[s]=7 and 8 TeV, corresponding to an integrated luminosity of 3  fb^-1. The ground states Σ_b^± and Σ_b^*± are also confirmed and their masses and widths are precisely measured.

Observation of Two Resonances in the Λ_b^0π^± Systems and Precise Measurement of Σ_b^± and Σ_b^*± Properties

Veltri, M;
2019-01-01

Abstract

The first observation of two structures consistent with resonances in the final states Λ_b^0π^- and Λ_b^0π^+ is reported using samples of pp collision data collected by the LHCb experiment at sqrt[s]=7 and 8 TeV, corresponding to an integrated luminosity of 3  fb^-1. The ground states Σ_b^± and Σ_b^*± are also confirmed and their masses and widths are precisely measured.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11576/2666853
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