Aaltonen, T;
Alvarez Gonzalez, B;
Amerio, S;
Amidei, D;
Anastassov, A;
Annovi, A;
Antos, J;
... Zucchelli, S; + view all
(2012)
Measurement of the branching fraction B(Λ0b→Λ+cπ−π+π−) at CDF.
Physical Review D
, 85
(3)
, Article 032003. 10.1103/PhysRevD.85.032003.
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Abstract
We report an analysis of the Λ0b→Λ+cπ−π+π− decay in a data sample collected by the CDF II detector at the Fermilab Tevatron corresponding to 2.4 fb−1 of integrated luminosity. We reconstruct the currently largest samples of the decay modes Λ0b→Λc(2595)+π− (with Λc(2595)+→Λ+cπ+π−), Λ0b→Λc(2625)+π− (with Λc(2625)+→Λ+cπ+π−), Λ0b→Σc(2455)++π−π− (with Σc(2455)++→Λ+cπ+), and Λ0b→Σc(2455)0π+π− (with Σc(2455)0→Λ+cπ−) and measure the branching fractions relative to the Λ0b→Λ+cπ− branching fraction. We measure the ratio B(Λ0b→Λ+cπ−π+π−)/B(Λ0b→Λ+cπ−)=3.04±0.33(stat)+0.70−0.55(syst) which is used to derive B(Λ0b→Λ+cπ−π+π−)=(26.8+11.9−11.2)×10−3.
| Type: | Article |
|---|---|
| Title: | Measurement of the branching fraction B(Λ0b→Λ+cπ−π+π−) at CDF |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.85.032003 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevD.85.032003 |
| Language: | English |
| Additional information: | Copyright © 2012 American Physical Society. |
| 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/1342840 |
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