An angular analysis of the B0 → K0ð→ Kþπ−Þμþμ− decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb−1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the Kþπ− system in an S-wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters

Measurement of CP -averaged observables in the B0 →k∗0μ+μ- decay / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 125:1(2020). [10.1103/PhysRevLett.125.011802]

Measurement of CP -averaged observables in the B0 →k∗0μ+μ- decay

Capriotti, L.;Casse, G.;Sarti, A.;Sciubba, A.;
2020

Abstract

An angular analysis of the B0 → K0ð→ Kþπ−Þμþμ− decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb−1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the Kþπ− system in an S-wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters
2020
B physics; branching fraction; flavour changing neutral currents; hadron; hadron scattering (experiments); rare decay
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of CP -averaged observables in the B0 →k∗0μ+μ- decay / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 125:1(2020). [10.1103/PhysRevLett.125.011802]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1466637
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