Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
Poireau, V;
... Neal, H; + view all
(2005)
Determination of vertical bar V-ub vertical bar from measurements of the electron and neutrino momenta in inclusive semileptonic B decays.
PHYS REV LETT
, 95
(11)
, Article 111801. 10.1103/PhysRevLett.95.111801.
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Abstract
We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element parallel to V(ub)parallel to based on the analysis of semileptonic B decays from a sample of 88x10(6) Upsilon(4S) decays collected with the BABAR detector at the SLAC PEP-II e(+)e(-) storage ring. Charmless semileptonic B decays are selected using measurements of the electron energy and the invariant mass squared of the electron-neutrino pair. We obtain parallel to V(ub)parallel to=(3.95 +/- 0.26(-0.42)(+0.58)+/- 0.25)x10(-3), where the errors represent experimental uncertainties, heavy quark parameter uncertainties, and theoretical uncertainties, respectively.
| Type: | Article |
|---|---|
| Title: | Determination of vertical bar V-ub vertical bar from measurements of the electron and neutrino momenta in inclusive semileptonic B decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.111801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.111801 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | MESON DECAYS, PHYSICS |
| 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/1303733 |
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