A four-body amplitude analysis of the B-→D∗+π-π- 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 4.7 fb-1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.

Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays. PHYSICAL REVIEW D, 101(3) [10.1103/PhysRevD.101.032005].

Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays

Calvi M.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Martinazzoli L.;Martinelli M.;Petruzzo M.;
2020

Abstract

A four-body amplitude analysis of the B-→D∗+π-π- 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 4.7 fb-1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.
Articolo in rivista - Articolo scientifico
Flavour Physics
English
Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays. PHYSICAL REVIEW D, 101(3) [10.1103/PhysRevD.101.032005].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/340218
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