Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
... Neal, H; + view all
(2005)
Search for the rare leptonic decay B-->tau(-)nu(tau).
PHYS REV LETT
, 95
(4)
, Article 041804. 10.1103/PhysRevLett.95.041804.
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Abstract
We present a search for the decay B- -> tau(-)<(nu)over bar >(tau) in a sample of 88.9 x 10(6) B (B) over bar pairs recorded with the BABAR detector at the Stanford Linear Accelerator Center B factory. One of the two B mesons from the Upsilon(4S) is reconstructed in a hadronic or a semileptonic final state, and the decay products of the other B in the event are analyzed for consistency with a B- -> tau(-)<(nu)over bar >(tau) decay. We find no evidence of a signal and set an upper limit on the branching fraction of B((B) over bar -> tau(-)<(nu)over bar >(tau)) < 4.2 x 10(-4) at the 90% confidence level.
| Type: | Article |
|---|---|
| Title: | Search for the rare leptonic decay B-->tau(-)nu(tau) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.041804 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.041804 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | DETECTOR, PHYSICS, LIMIT |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences 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-pp.ucl.ac.uk/id/eprint/1303726 |
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