Large Short-Baseline antinu_mu Disappearance
Abstract
We analyze the LSND, KARMEN and MiniBooNE data on short-baseline antinu_mu -> antinu_e oscillations and the data on short-baseline antinu_e disappearance obtained in the Bugey-3 and CHOOZ reactor experiments in the framework of 3+1 antineutrino mixing, taking into account the MINOS observation of long-baseline antinu_mu disappearance and the KamLAND observation of very-long-baseline antinu_e disappearance. We show that the fit of the data implies that the short-baseline disappearance of antinu_mu is relatively large. We obtain a prediction of an effective amplitude sin^2 2 theta_{mu mu} >~ 0.1 for short-baseline antinu_mu disappearance generated by 0.2 <~ Delta m^2 <~ 1 eV^2, which could be measured in future experiments.
Cite
@article{arxiv.1012.0267,
title = {Large Short-Baseline antinu_mu Disappearance},
author = {Carlo Giunti and Marco Laveder},
journal= {arXiv preprint arXiv:1012.0267},
year = {2011}
}
Comments
6 pages; final version published in Phys.Rev.D 83 (2011) 053006