Abulencia, A;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Ambrose, D;
Amerio, S;
... CDF Collaboration; + view all
(2007)
Measurement of the Lambda(0)(b) lifetime in Lambda(0)(b)-> J/psi Lambda(0) in p(p)over-bar collisions at root s=1.96 TeV.
PHYS REV LETT
, 98
(12)
, Article 122001. 10.1103/PhysRevLett.98.122001.
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Abstract
We report a measurement of the Lambda(0)(b) lifetime in the exclusive decay Lambda(0)(b)-> J/psi Lambda(0) in p (p) over bar collisions at root s=1.96 TeV using an integrated luminosity of 1.0 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. Using fully reconstructed decays, we measure tau(Lambda(0)(b))=1.593(-0.078)(+0.083)(stat)+/- 0.033(syst) ps. This is the single most precise measurement of tau(Lambda(0)(b)) and is 3.2 sigma higher than the current world average.
| Type: | Article |
|---|---|
| Title: | Measurement of the Lambda(0)(b) lifetime in Lambda(0)(b)-> J/psi Lambda(0) in p(p)over-bar collisions at root s=1.96 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.122001 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.122001 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | DECAYS, UPGRADE, BEAUTY, QCD |
| 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 UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/131706 |
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