We study charmless hadronic decays of charged B mesons to the final states K0 SK0 SK and K0 SK0 Sπ using a 711 fb−1 data sample that contains 772 × 106 BB¯ pairs and was collected at the ϒð4SÞ resonance with the Belle detector at the KEKB asymmetric-energy eþe− collider. For B → K0 SK0 SK, the measured branching fraction and direct CP asymmetry are ½10.42 0.43ðstatÞ 0.22ðsystÞ × 10−6 and ½þ1.6 3.9ðstatÞ 0.9ðsystÞ%, respectively. In the absence of a statistically significant signal for B → K0 SK0 Sπ, we obtain a 90% confidence-level upper limit on its branching fraction as 8.7 × 10−7.
Measurements of branching fraction and direct CP asymmetry in B±→KS0KS0K± and a search for B±→KS0KS0π± / Kaliyar, A. B., Behera, P., Mohanty, G. B., Gaur, V., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bansal, V., Beleño, C., Bhardwaj, V., Bilka, T., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 99:3(2019). [10.1103/PhysRevD.99.031102]
Measurements of branching fraction and direct CP asymmetry in B±→KS0KS0K± and a search for B±→KS0KS0π±
Merola, M.;Russo, G.
Membro del Collaboration Group
;
2019
Abstract
We study charmless hadronic decays of charged B mesons to the final states K0 SK0 SK and K0 SK0 Sπ using a 711 fb−1 data sample that contains 772 × 106 BB¯ pairs and was collected at the ϒð4SÞ resonance with the Belle detector at the KEKB asymmetric-energy eþe− collider. For B → K0 SK0 SK, the measured branching fraction and direct CP asymmetry are ½10.42 0.43ðstatÞ 0.22ðsystÞ × 10−6 and ½þ1.6 3.9ðstatÞ 0.9ðsystÞ%, respectively. In the absence of a statistically significant signal for B → K0 SK0 Sπ, we obtain a 90% confidence-level upper limit on its branching fraction as 8.7 × 10−7.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
