The ratio of branching fractions between B0 →J/ψπ0 and B+ →J/ψK∗+ de- cays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The measured value is BB0→J/ψπ0 = (1.153 ±0.053 ±0.048) ×10−2 , BB+→J/ψK∗+ where the first uncertainty is statistical and the second is systematic. The branching fraction for B0 →J/ψπ0 decays is determined using the branching fraction of the normalisation channel, resulting in BB0→J/ψπ0 = (1.670 ±0.077 ±0.069 ±0.095) ×10−5 , where the last uncertainty corresponds to that of the external input. This result is consistent withthecurrentworldaveragevalueandcompetitivewiththemostprecisesinglemeasurement to date.

Measurement of the branching fraction of B0 → J/ψπ0 decays / Null, N., Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adams, J.A., Adefisoye, A.A., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:5(2024). [10.1007/jhep05(2024)065]

Measurement of the branching fraction of B0 → J/ψπ0 decays

Casse, G.;Sarti, A.;
2024

Abstract

The ratio of branching fractions between B0 →J/ψπ0 and B+ →J/ψK∗+ de- cays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The measured value is BB0→J/ψπ0 = (1.153 ±0.053 ±0.048) ×10−2 , BB+→J/ψK∗+ where the first uncertainty is statistical and the second is systematic. The branching fraction for B0 →J/ψπ0 decays is determined using the branching fraction of the normalisation channel, resulting in BB0→J/ψπ0 = (1.670 ±0.077 ±0.069 ±0.095) ×10−5 , where the last uncertainty corresponds to that of the external input. This result is consistent withthecurrentworldaveragevalueandcompetitivewiththemostprecisesinglemeasurement to date.
2024
charmed baryons, limits on production of particles, charmed quarks, experimental tests
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the branching fraction of B0 → J/ψπ0 decays / Null, N., Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adams, J.A., Adefisoye, A.A., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:5(2024). [10.1007/jhep05(2024)065]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1720407
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