We present a study of rare decay modes B+→Ds+h0, B+→Ds∗+h0, and B+→D+h0, where h0 denotes the neutral meson η or K0, using a data sample of (772±10)×106 BB¯ events produced at the ϒ(4S) resonance. The data were collected by the Belle detector operating at the asymmetric-energy KEKB collider. We find no evidence for these decays, so we set upper limits at the 90% confidence level on the branching fractions of B+→Ds+h0, Ds∗+h0, and D+h0 decay modes. Along with these rare decay modes, we report improved measurements of the color-suppressed decay branching fractions B(B¯0→D0η)=(26.6±1.2±2.1)×10-5 and B(B¯0→D0K̄0)=(5.6±0.5±0.2)×10-5. The first and second quoted uncertainties are statistical and systematic, respectively.

Search for rare decays B+ → Ds (∗)+ η, Ds (∗)+ K ¯ 0, D+η, and D+K0 / Kumar, M., Bhardwaj, V., Lalwani, K., Adachi, I., Aihara, H., Asner, D.M., Aushev, T., Babu, V., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhuyan, B., Bilka, T., Bobrov, A., Bodrov, D., Bonvicini, G., Borah, J., Bozek, A., Bracko, M., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 107:3(2023). [10.1103/PhysRevD.107.L031101]

Search for rare decays B+ → Ds (∗)+ η, Ds (∗)+ K ¯ 0, D+η, and D+K0

Campajola M.;Di Capua F.;Merola M.;Pardi S.;Russo Guido;
2023

Abstract

We present a study of rare decay modes B+→Ds+h0, B+→Ds∗+h0, and B+→D+h0, where h0 denotes the neutral meson η or K0, using a data sample of (772±10)×106 BB¯ events produced at the ϒ(4S) resonance. The data were collected by the Belle detector operating at the asymmetric-energy KEKB collider. We find no evidence for these decays, so we set upper limits at the 90% confidence level on the branching fractions of B+→Ds+h0, Ds∗+h0, and D+h0 decay modes. Along with these rare decay modes, we report improved measurements of the color-suppressed decay branching fractions B(B¯0→D0η)=(26.6±1.2±2.1)×10-5 and B(B¯0→D0K̄0)=(5.6±0.5±0.2)×10-5. The first and second quoted uncertainties are statistical and systematic, respectively.
2023
Search for rare decays B+ → Ds (∗)+ η, Ds (∗)+ K ¯ 0, D+η, and D+K0 / Kumar, M., Bhardwaj, V., Lalwani, K., Adachi, I., Aihara, H., Asner, D.M., Aushev, T., Babu, V., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhuyan, B., Bilka, T., Bobrov, A., Bodrov, D., Bonvicini, G., Borah, J., Bozek, A., Bracko, M., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 107:3(2023). [10.1103/PhysRevD.107.L031101]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/968981
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