Solving Degeneracies at a $β$-Beam by Combining Ions
| dc.creator | Fernandez-Martinez, E. | |
| dc.date | 2006-05-09 | |
| dc.date | 2008-04-17 | |
| dc.date.accessioned | 2026-07-07T09:33:00Z | |
| dc.date.available | 2026-07-07T09:33:00Z | |
| dc.description | We study how the eightfold-degeneracy in the ($θ_{13},δ$) plane observed in $γ\sim 100$ $β$-beams can be reduced by periodically changing the ions in the storage ring. This ``ions cocktail'' allows to change the neutrino energy, at fixed $γ$, by choosing ions with different decay energies. We propose to combine the standard $^6$He and $^{18}$Ne beams with $^8$Li and $^8$B ones. These latter two ions have peaked $ν_e \to ν_μ$ oscillation probabilities for $γ= 100$ at a baseline $L \sim 700$ Km. At this distance and this $γ$ the oscillation probability of $^6$He and $^{18}$Ne neutrinos is at its second maximum. This setup is particularly suited for large enough values of $θ_{13}$ (within reach at T2K-I) and it allows solving most of the eightfold-degeneracy, measuring $θ_{13}, δ$ and the sign of the atmospheric mass difference for values of $θ_{13} \geq 5^\circ$. | |
| dc.description | Talk given at the XLIrst Rencontres de Moriond session devoted to Electroweak Interactions And Unified Theories in March 2006. 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0605101 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0605101 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/158985 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Solving Degeneracies at a $β$-Beam by Combining Ions | |
| dc.type | text |