• Open Access

Determination of quantum numbers for several excited charmed mesons observed in BD*+ππ decays

R. Aaij et al. (LHCb Collaboration)
Phys. Rev. D 101, 032005 – Published 20 February 2020

Abstract

A four-body amplitude analysis of the BD*+ππ decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent analyses are performed aimed at searching for the presence of new states and establishing the quantum numbers of previously observed charmed meson resonances. In particular the resonance parameters and quantum numbers are determined for the D1(2420), D1(2430), D0(2550), D1*(2600), D2(2740) and D3*(2750) states. The mixing between the D1(2420) and D1(2430) resonances is studied and the mixing parameters are measured. The dataset corresponds to an integrated luminosity of 4.7fb1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.

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  • Received 15 November 2019
  • Accepted 23 January 2020

DOI:https://doi.org/10.1103/PhysRevD.101.032005

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

© 2020 CERN, for the LHCb Collaboration

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Vol. 101, Iss. 3 — 1 February 2020

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