Search for the B_c Meson in Hadronic Z^0 Decays
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, K. Ackerstaff et | |
| dc.date | 1998-01-27 | |
| dc.date.accessioned | 2026-07-07T11:46:51Z | |
| dc.date.available | 2026-07-07T11:46:51Z | |
| dc.description | A search for decays of the B_c meson was performed using data collected from 1990-1995 with the OPAL detector on or near the Z peak at LEP. The decay channels B_c^+ -> J/psi pi^+, B_c^+ -> J/psi a_1^+ and B_c^+ -> J/psi ell^+ nu were investigated, where ell denotes an electron or a muon. Two candidates are observed in the mode B_c^+ -> J/psi pi^+, with an estimated background of (0.63 +/- 0.20) events. The weighted mean of the masses of the two candidates is (6.32 +/- 0.06) GeV/c^2, which is consistent with the predicted mass of the B_c meson. One candidate event is observed in the mode B_c^+ -> J/psi ell^+ nu with an estimated background of (0.82 +/- 0.19) events. No candidate events are observed in the B_c^+ -> J/psi a_1^+ decay mode, with an estimated background of (1.10 +/- 0.22) events. Upper bounds at the 90% confidence level are set on the production rates for these processes. | |
| dc.description | 18 pages, LaTeX, uses a4p.sty, 6 eps figures included, submitted to Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9801026 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9801026 | |
| dc.identifier | Phys.Lett.B420:157-168,1998 | |
| dc.identifier | doi:10.1016/S0370-2693(97)01569-4 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202373 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for the B_c Meson in Hadronic Z^0 Decays | |
| dc.type | text |