We study semi-inclusive charmless decays B → πX, where X does not contain a charm (anti)quark. The mode B̄0 → π- X turns out to be be particularly useful for determination of the CKM matrix element Vub . We present the branching ratio (BR) of B̄0 → π- X as a function of Vub , with an estimation of possible uncertainty. The BR is expected to be an order of 10-4.
Bibliographical noteFunding Information:
*The work of C.S.K. was supported in part by CHEP-SRC Program, Grant No. 20015-111-02-2 and Grant No. R03-2001-00010 of the KOSEF, in part by BK21 Program and Grant No. 2001-042-DO0022 of the KRF, and in part by Yonsei Research Fund, Project No. 2001-l-0057. tThe work of J.L. was supported by BK21 Program and Grant No. 2001-042-DO0022 of the KRF. TThe work of S.O. was supported by BK21 Program and Grant No. 2001-042-DO0022 of the KRF.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics