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.; Biswal, J.; Bobrov, A.; Bozek, A.; Bračko, M.; Cao, L.; Červenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Dash, N.; Di Carlo, S.; Dingfelder, J.; Doležal, Z.; Dong, T. V.; Drásal, Z.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Ferber, T.; Frey, A.; Fulsom, B. G.; Garg, R.; Gabyshev, N.; Garmash, A.; Gelb, M.; Giri, A.; Goldenzweig, P.; Golob, B.; Greenwald, D.; Grzymkowska, O.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Hsu, C. -L.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jeon, H. B.; Jia, S.; Joffe, D.; Joo, K. K.; Kahn, J.; Karyan, G.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, C. H.; Kim, D. Y.; Kim, H. J.; Kim, S. H.; Kimmel, T. D.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Lee, I. S.; Lee, J. K.; Lee, J. Y.; Lee, S. C.; Levit, D.; Li, C. H.; Li, L. K.; Li, Y. B.; Li Gioi, L.; Libby, J.; Luo, T.; Macnaughton, J.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, S.; Mori, T.; Nakao, M.; Nath, K. J.; Natkaniec, Z.; Nayak, M.; Nisar, N. K.; Nishida, S.; Nishimura, K.; Ogawa, K.; Ogawa, S.; Ono, H.; Onuki, Y.; Ostrowicz, W.; Pakhlova, G.; Pal, B.; Pardi, S.; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Prasanth, K.; Prencipe, E.; Rabusov, A.; Resmi, P. K.; Ritter, M.; Rostomyan, A.; Russo, G.; Sahoo, D.; Sakai, Y.; Salehi, M.; Sandilya, S.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schueler, J.; Schwanda, C.; Schwartz, A. J.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Solovieva, E.; Starič, M.; Stottler, Z. S.; Sumihama, M.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tanida, K.; Tao, Y.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Van Tonder, R.; Varner, G.; Varvell, K. E.; Vossen, A.; Waheed, E.; Wang, B.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Won, E.; Yang, S. B.; Ye, H.; Yelton, J.; Yin, J. H.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.. - 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.
