The only anticipated resonant contributions to B+ → D+ D− K+ decays are charmonium states in the D+ D− channel. A model-independent analysis, using LHCb proton-proton collision data taken at center-of-mass energies of √s = 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb^−1, is carried out to test this hypothesis. The description of the data assuming that resonances only manifest in decays to the D+ D− pair is shown to be incomplete. This constitutes evidence for a new contribution to the decay, potentially one or more new charm-strange resonances in the D− K+ channel with masses around 2.9 GeV/c^2.

Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Model-Independent Study of Structure in B+ → D+ D− K+ Decays. PHYSICAL REVIEW LETTERS, 125(24), 1-10 [10.1103/PhysRevLett.125.242001].

Model-Independent Study of Structure in B+ → D+ D− K+ Decays

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Maccolini, S.;Manuzzi, D.;Patrignani, C.;Pisani, F.;Zucchelli, S.;
2020

Abstract

The only anticipated resonant contributions to B+ → D+ D− K+ decays are charmonium states in the D+ D− channel. A model-independent analysis, using LHCb proton-proton collision data taken at center-of-mass energies of √s = 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb^−1, is carried out to test this hypothesis. The description of the data assuming that resonances only manifest in decays to the D+ D− pair is shown to be incomplete. This constitutes evidence for a new contribution to the decay, potentially one or more new charm-strange resonances in the D− K+ channel with masses around 2.9 GeV/c^2.
2020
Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Model-Independent Study of Structure in B+ → D+ D− K+ Decays. PHYSICAL REVIEW LETTERS, 125(24), 1-10 [10.1103/PhysRevLett.125.242001].
Aaij, R.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C.A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/797684
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