The measurement of an inclusive partial branching fraction for charmless semileptonic B decay and the extraction of |Vub| was discussed. The candidates for B → Xulv were identified with a Xu reconstruction method based on neutrino reconstruction.It was found that the result of |Vub| = (4.66 ± 0.760 × 10-3 was consistent with the previous inclusive measurements. Analysis shows that the error from the cluster finding efficiency was estimated by reducing the photon-finding efficiency within its uncertainity.
Bibliographical noteFunding Information:
We thank the KEKB accelerator group for the excellent operation of the KEKB accelerator. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Education, Science and Training; the National Science Foundation of China under Contract No. 10175071; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea and the CHEP SRC program of the Korea Science and Engineering Foundation; the Polish State Committee for Scientific Research under Contract No. 2P03B 01324; the Ministry of Science and Technology of the Russian Federation; the Ministry of Education, Science and Sport of the Republic of Slovenia; the National Science Council and the Ministry of Education of Taiwan; and the U.S. Department of Energy.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)