2010/05/31 by Abhijit Samanta
Chemistry · Physics and Astronomy · #CP violation #Calorimeter (particle physics) #Chemistry #Detector #Measurements of neutrino speed #Muon #Neutrino #Neutrino Physics Research #Neutrino oscillation #Noncommutative and Quantum Gravity Theories #Nuclear physics #Optics #Oscillation (cell signaling) #Particle physics #Particle physics theoretical and experimental studies #Physics #Solar neutrino #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.physletb.2010.08.062
published as Phys.Lett.B693:296-300,2010 · 8 pages, 1 figure; discussions and references added, accepted in Phys. Lett. B
openalex publication_date 2010/09/01 · arxiv created 2010/09/11 · arxiv updated 2014/11/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We have studied CPT violation in neutrino oscillation considering three flavor framework with matter effect. We have constructed a new way to find the oscillation probability incorporating CPT violating terms without any approximation. Then CPT violation with atmospheric neutrinos for a magnetized iron calorimeter detector considering the muons (directly measurable with high resolution) of the charge current events has been studied for zero and nonzero θ13 values. It is found that a potential bound of δb32 \lapp 6× 10-24 GeV at 99% CL can be obtained with 1 Mton.year exposure of this detector; and unlike neutrino beam experiments, there is no possibility to generate `fake' CPT violation due to matter effect with atmospheric neutrinos. The advantages of atmospheric neutrinos to discriminate CPT violation from CP violation and nonstandard interactions are also discussed.