Improved Measurement of the Probability for Gluon Splitting into b bbar in Z0 Decays
| dc.creator | al, Koya Abe et | |
| dc.date | 2001-02-03 | |
| dc.date.accessioned | 2026-07-07T12:01:35Z | |
| dc.date.available | 2026-07-07T12:01:35Z | |
| dc.description | We have measured gluon splitting into bottom quarks, g -> b bbar, in hadronic Z0 decays collected by SLD between 1996 and 1998. The analysis was performed by looking for secondary bottom production in 4-jet events of any primary flavor. 4-jet events were identified, and in each event a topological vertex-mass technique was applied to the two jets closest in angle in order to identify them as b or bbar jets. The upgraded CCD vertex detector gives very high B-tagging efficiency, especially for B hadrons with the low energies typical of this process. We measured the rate of g -> b bbar production per hadronic event, g_bb, to be (2.44+-0.59 (stat) +-0.34 (syst)) X10**-3. | |
| dc.description | 21 pages, 11 figures; submitted to Physics Letters B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0102002 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0102002 | |
| dc.identifier | Phys.Lett.B507:61-69,2001 | |
| dc.identifier | doi:10.1016/S0370-2693(01)00367-7 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207144 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Improved Measurement of the Probability for Gluon Splitting into b bbar in Z0 Decays | |
| dc.type | text |