Constraints on Flavor-dependent Long Range Forces from Neutrino Experiments
نویسندگان
چکیده
We study the impact of flavor-dependent long range leptonic forces mediated by the Le − Lμ or Le −Lτ gauge bosons on the solar neutrino oscillations, when the interaction range RLR is much larger than the Earth-Sun distance. The solar and atmospheric neutrino mass scales do not get trivially decoupled in this situation even if θ13 is vanishingly small. In addition, for α ∼ > 10 and normal hierarchy, resonant enhancement of θ13 may give rise to strong energy dependent effects on the νe survival probability. A complete three generation analysis of the solar neutrino and KamLAND data gives the 3σ limits αeμ < 3.4× 10 and αeτ < 2.5× 10 when RLR is much smaller than our distance from the galactic center. With larger RLR, the collective LR potential due to all the electrons in the galaxy becomes significant and the constraints on α become stronger by upto two orders of magnitude.
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تاریخ انتشار 2006