We report results from the first search for the rare penguin-dominated decay mode B0→KS0KS0γ, which can result from the production of tensor mesons f(1270) and f′(1525) in association with a photon. The search uses the full data sample of 772×106 BB¯ pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No statistically significant signals are observed in the KS0KS0 invariant mass range 1 GeV/c2<3 GeV/c2, and the following upper limits at the 90% confidence level are obtained: B(B0→KS0KS0γ)<5.8×10-7, B(B0→f2γ)×B(f2(1270)→KS0KS0)<3.1×10-7, and B(B0→f2′γ)×B(f2′(1525)→KS0KS0)<2.1×10-7. In addition, 90% confidence-level upper limits in the range of [0.7-2.9]×10-7 are also obtained on the B0→KS0KS0γ branching fraction in bins of MKS0KS0.

Search for the radiative penguin decays B0 → KS0 KS0 γ in the Belle experiment / Jeon, H.B., Kang, K.H., Park, H., Adachi, I., Aihara, H., Al Said, S., Asner, D.M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 106:1(2022). [10.1103/PhysRevD.106.012006]

Search for the radiative penguin decays B0 → KS0 KS0 γ in the Belle experiment

Campajola M.;Di Capua F.;Merola M.;Pardi S.;Russo Guido;
2022

Abstract

We report results from the first search for the rare penguin-dominated decay mode B0→KS0KS0γ, which can result from the production of tensor mesons f(1270) and f′(1525) in association with a photon. The search uses the full data sample of 772×106 BB¯ pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No statistically significant signals are observed in the KS0KS0 invariant mass range 1 GeV/c2<3 GeV/c2, and the following upper limits at the 90% confidence level are obtained: B(B0→KS0KS0γ)<5.8×10-7, B(B0→f2γ)×B(f2(1270)→KS0KS0)<3.1×10-7, and B(B0→f2′γ)×B(f2′(1525)→KS0KS0)<2.1×10-7. In addition, 90% confidence-level upper limits in the range of [0.7-2.9]×10-7 are also obtained on the B0→KS0KS0γ branching fraction in bins of MKS0KS0.
2022
Search for the radiative penguin decays B0 → KS0 KS0 γ in the Belle experiment / Jeon, H.B., Kang, K.H., Park, H., Adachi, I., Aihara, H., Al Said, S., Asner, D.M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 106:1(2022). [10.1103/PhysRevD.106.012006]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/968977
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