A search for the decay $B^+ \to K^+ ν\barν$
| dc.creator | Aubert, B. | |
| dc.creator | Collaboration, BABAR | |
| dc.date | 2004-11-18 | |
| dc.date.accessioned | 2026-07-07T11:57:58Z | |
| dc.date.available | 2026-07-07T11:57:58Z | |
| dc.description | We search for the rare flavor-changing neutral-current decay $B^+ \to K^+ ν\barν$ in a data sample of 82 fb$^{-1}$ collected with the {\sl BABAR} detector at the PEP-II B-factory. Signal events are selected by examining the properties of the system recoiling against either a reconstructed hadronic or semileptonic charged-B decay. Using these two independent samples we obtain a combined limit of ${\mathcal B}(B^+ \to K^+ ν\barν)<5.2 \times 10^{-5}$ at the 90% confidence level. In addition, by selecting for pions rather than kaons, we obtain a limit of ${\mathcal B}(B^+ \to π^+ ν\barν)<1.0 \times 10^{-4}$ using only the hadronic B reconstruction method. | |
| dc.description | 7 pages, 8 postscript figures, submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0411061 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0411061 | |
| dc.identifier | Phys.Rev.Lett.94:101801,2005 | |
| dc.identifier | doi:10.1103/PhysRevLett.94.101801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206072 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A search for the decay $B^+ \to K^+ ν\barν$ | |
| dc.type | text |