2016/03/30 by Ahmed Rashed, Alakabha Datta
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Hierarchy #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Protein Structure and Dynamics #Statistical physics #Theoretical physics #hep-ex #hep-ph
paper · pdf · doi:10.1142/s0217751x17500609
published as Int. J. Mod. Phys. A 32, 1750060 (2017) · 14 pages and 20 figures
arxiv created 2016/03/30 · openalex created_date 2016/06/24 · openalex publication_date 2017/04/05 · arxiv updated 2017/04/27 · openalex updated_date 2026/08/05
Crucial developments in neutrino physics would be the determination of the mass hierarchy (MH) and measurement of the CP phase in the leptonic sector. The patterns of the transition probabilities [Formula: see text] and [Formula: see text] are sensitive to these oscillation parameters. An asymmetry parameter can be defined as the difference of these two probabilities normalized to their sum. The profile of the asymmetry parameter gives a clear signal of the mass ordering as it is found to be positive for inverted hierarchy and negative for normal hierarchy. The asymmetry parameter is also sensitive to the CP phase. We consider the effects of nonstandard neutrino interactions (NSI) on the determination of the mass hierarchy. Since we assume the largest new physics effects involve the [Formula: see text] sector only, we ignore NSI in production and study the NSI effects in detection as well as along propagation. We find that the NSI effects can significantly modify the prediction of the asymmetry parameter though the MH can still be resolved.