Isospin in $B$ Decays and the $(B^0 \bar B^0)/(B^+ B^-)$ Production Ratio
| dc.creator | Gronau, Michael | |
| dc.creator | Grossman, Yuval | |
| dc.creator | Rosner, Jonathan L. | |
| dc.date | 2006-01-17 | |
| dc.date | 2006-02-27 | |
| dc.date.accessioned | 2026-07-07T10:44:38Z | |
| dc.date.available | 2026-07-07T10:44:38Z | |
| dc.description | Methods are proposed for measuring the ratio $R^{+/0} = Γ(Υ(4S) \to B^+ B^-)/$ $Γ(Υ(4S) \to \bo \ob)$ without assuming isospin invariance in exclusive hadronic decays such as $B \to J/ψK$. The validity of isospin invariance in various B decays is discussed. Isospin violations are expected to be especially small in inclusive semileptonic decays, so that $Γ(B^+ \to X_c^0 \ell^+ ν_\ell) = Γ(B^0 \to X_c^- \ell^+ ν_\ell)$ is expected to hold at the sub-percent level. Suggestions are made for utilizing this relation. The accuracy of a ``double-tag'' method for obtaining $R^{+/0}$, such as that used for measuring the $D^+ D^-/D^0 \od$ ratio at the $ψ'' \equiv ψ(3770)$, is also estimated. | |
| dc.description | 6 pages, no figures, to be published in Phys. Rev. D (Brief Reports). One reference and acknowledgment added; slight text change | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0601136 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0601136 | |
| dc.identifier | Phys.Rev.D73:057501,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.73.057501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/182665 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Isospin in $B$ Decays and the $(B^0 \bar B^0)/(B^+ B^-)$ Production Ratio | |
| dc.type | text |