Acosta, D;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Ambrose, D;
Amerio, S;
... CDF Collaboration; + view all
(2006)
Measurement of bottom-quark hadron masses in exclusive J/psi decays with the CDF detector.
Physical Review Letters
, 96
, Article 202001. 10.1103/PhysRevLett.96.202001.
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Abstract
We measure the masses of b hadrons in exclusively reconstructed final states containing a J/psi ->mu(-)mu(+) decay using 220 pb(-1) of data collected by the CDF II experiment. We find: m(B+)=5279.10 +/- 0.41((stat.))+/- 0.36((sys.)) MeV/c(2), m(B-0)=5279.63 +/- 0.53((stat.))+/- 0.33((sys.)) MeV/c(2), m(B-s(0))=5366.01 +/- 0.73((stat.))+/- 0.33((sys.)) MeV/c(2), m(Lambda(0)(b))=5619.7 +/- 1.2((stat.))+/- 1.2((sys.)) MeV/c(2). m(B+)-m(B-0)=-0.53 +/- 0.67((stat.))+/- 0.14((sys.)) MeV/c(2), m(B-s(0))-m(B-0)=86.38 +/- 0.90((stat.))+/- 0.06((sys.)) MeV/c(2), m(Lambda(0)(b))-m(B-0)=339.2 +/- 1.4((stat.))+/- 0.1((sys.)) MeV/c(2). The measurements of the B-s(0), Lambda(0)(b) mass, m(B-s(0))-m(B-0) and m(Lambda(0)(b))-m(B-0) mass difference are of better precision than the current world averages.
| Type: | Article |
|---|---|
| Title: | Measurement of bottom-quark hadron masses in exclusive J/psi decays with the CDF detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.96.202001 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.96.202001 |
| Language: | English |
| Additional information: | © 2006 The American Physical Society |
| Keywords: | LAMBDA(B) BARYON, PARTICLE 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 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/142759 |
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