تقرير
Nonmaximal $\theta_{23}$ mixing at NOvA from neutrino decoherence
| العنوان: | Nonmaximal $\theta_{23}$ mixing at NOvA from neutrino decoherence |
|---|---|
| المؤلفون: | Coelho, Joao A. B., Mann, W. Anthony, Bashar, Saqib S. |
| المصدر: | Phys. Rev. Lett. 118, 221801 (2017) |
| سنة النشر: | 2017 |
| المجموعة: | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, High Energy Physics - Experiment |
| الوصف: | In study of muon neutrino disappearance at 810 km, the NOvA experiment finds flavor mixing of the atmospheric sector to deviate from maximal ($\sin^2\theta_{23} = 0.5$) by 2.6 $\sigma$. The result is in tension with the 295-km baseline measurements of T2K which are consistent with maximal mixing. We propose that $\theta_{23}$ is in fact maximal, and that the disagreement is harbinger of environmentally-induced decoherence. The departure from maximal mixing can be accounted for by an energy-independent decoherence of strength $\Gamma = (2.3 \pm 1.1) \times 10^{-23}$ GeV. Comment: 5 pages, 2 figures, accepted for publication in Physical Review Letters |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.118.221801 |
| URL الوصول: | http://arxiv.org/abs/1702.04738 |
| رقم الأكسشن: | edsarx.1702.04738 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.118.221801 |
|---|