arXiv subjects

Jacobo Lopez-Pavon

Publications and source records attributed to Jacobo Lopez-Pavon.

21 records · Page 2Linked to original sources

arXiv2010

Summary report of MINSIS workshop in Madrid

Recent developments on tau detection technologies and the construction of high intensity neutrino beams open the possibility of a high precision search for non-standard μ - τ flavour transition with neutrinos at short distances. The MINSIS - Main Injector Non-Standard Interaction Search- is a proposal under discussion to realize such precision measurement. This document contains the proceedings of the workshop which took place on 10-11 December 2009 in Madrid to discuss both the physics reach as well as the experimental requirements for this proposal.

hep-ph↗

arXiv2009

Probing non-unitary mixing and CP-violation at a Neutrino Factory

A low energy non-unitary leptonic mixing matrix is a generic feature of many extensions of the Standard Model. In such a case, the task of future precision neutrino oscillation experiments is more ambitious than measuring the three mixing angles and the leptonic (Dirac) CP-phase, i.e., the accessible parameters of a unitary leptonic mixing matrix. A non-unitary mixing matrix has 13 parameters that affect neutrino oscillations, out of which four are CP-violating. In the scheme of Minimal Unitarity Violation (MUV) we analyse the potential of a Neutrino Factory for determining or constraining the parameters of the non-unitary leptonic mixing matrix, thereby testing the origin of CP-violation in the lepton sector.

hep-ph↗

arXiv2008

$θ_{13}$, $δ$ and the neutrino mass hierarchy at a $γ=350$ double baseline Li/B $β$-Beam

We consider a $β$-Beam facility where $^8$Li and $^8$B ions are accelerated at $γ= 350$, accumulated in a 10 Km storage ring and let decay, so as to produce intense $\bar ν_e$ and $ν_e$ beams. These beams illuminate two iron detectors located at $L \simeq 2000$ Km and $L \simeq 7000$ Km, respectively. The physics potential of this setup is analysed in full detail as a function of the flux. We find that, for the highest flux ($10 \times 10^{18}$ ion decays per year per baseline), the sensitivity to $θ_{13}$ reaches $\sin^2 2 θ_{13} \geq 2 \times10^{-4}$; the sign of the atmospheric mass difference can be identified, regardless of the true hierarchy, for $\sin^2 2 θ_{13} \geq 4\times10^{-4}$; and, CP-violation can be discovered in 70% of the $δ$-parameter space for $\sin^2 2 θ_{13} \geq 10^{-3}$, having some sensitivity to CP-violation down to $\sin^2 2 θ_{13} \geq 10^{-4}$ for $|δ| \sim 90^\circ$.

hep-ph↗