Kakuno, H;
Abe, K;
Abe, K;
Adachi, I;
Aihara, H;
Asano, Y;
Aso, T;
... Belle Collaboration; + view all
(2004)
Measurement of vertical bar V-ub vertical bar using inclusive B -> X(u)l nu decays with a novel X-u-reconstruction method.
PHYS REV LETT
, 92
(10)
, Article 101801. 10.1103/PhysRevLett.92.101801.
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Abstract
We report the measurement of an inclusive partial branching fraction for charmless semileptonic B decay and the extraction of \V-ub\. Candidates for B-->X-u.nu are identified with a novel X-u reconstruction method based on neutrino reconstruction via missing 4-momentum and a technique called "simulated annealing." Based on 86.9 fb(-1) of data taken with the Belle detector, we obtain DeltaB(B-->X-u.nu;M-X<1.7 GeV/c(2),q(2)>8.0 GeV2/c(2))=[7.37+/-0.89(stat)+/-1.12(syst)+/-0.55(b-->c)+/-0.24(b-->u)]x10(-4) and determine \V-ub\=[4.66+/-0.28(stat)+/-0.35(syst)+/-0.17(b-->c)+/-0.08(b-->u)+/-0.58(theory)]x10(-3).
| Type: | Article |
|---|---|
| Title: | Measurement of vertical bar V-ub vertical bar using inclusive B -> X(u)l nu decays with a novel X-u-reconstruction method |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.92.101801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.92.101801 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | HADRONS, MASS, LEP |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1308424 |
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