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U (5S) data for V xb ?. Toru Iijima / Nagoya. U (5S) data at Belle. Belle has 23.6 fb -1 U (5S) data at hand. A little more data before the shutdown (for upgrade) useful ? The upgraded machine can give O(100fb -1 ) U (5S)data sample rather quickly. Do you want us to run more ?
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U(5S) data for Vxb ? Toru Iijima / Nagoya
U(5S) data at Belle • Belle has 23.6 fb-1U(5S) data at hand. • A little more data before the shutdown (for upgrade) useful ? • The upgraded machine can give O(100fb-1) U(5S)data sample rather quickly. Do you want us to run more ? Is U(5S) data useful for Vxb ?
U(5S) data for Vxb ? • Belle has measured BsX+l-n (hep-ex/0710.2548). • BF=(10.2+/-0.8+/-0.9%) @ 23.6fb-1 • It is not difficult to measure BF with similar precision to Bu,d in future. • Other possibilities • Bs Ds(*) l n • Bs K+ l-n, K*+ l-n • Also Bs fg • BF=(5.7 +1.8/-1.5 +1.2/-1.7) x 10-5 @ 23.6fb-1 These may be useful as cross-checks of Bu,d results, … but, in which aspect; SU(3), …
Bs X+ l-n (23.6fb-1) Talk by A.Drutskoy at EPS07
Bs X+ l-n (23.6fb-1) Talk by A.Drutskoy at EPS07
Bs fg (23.6fb-1) Talk by A.Drutskoy at EPS07
BNM2008 (Jan.24-26, Atami, Japan) New measurements at present Belle or Super-Belle http://superb.kek.jp/bnm2008/index.html If you have any idea and suggestions, please join !