Comprehensive study of Lorentz invariance violation in atmospheric and long-baseline experiments

Raikwal, Deepak; Choubey, Sandhya; Ghosh, Manojit (2023) Comprehensive study of Lorentz invariance violation in atmospheric and long-baseline experiments. Physical Review D, 107 (11). ISSN 2470-0010

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Abstract

In this paper, we have presented a comprehensive study of Lorentz Invariance Violation (LIV) in the context of atmospheric neutrino experiment ICAL and long-baseline experiments T2HK and DUNE. Our study consists of the full parameter space of the LIV parameters (isotropic), i.e., six CPT violating LIV parameters (aαβ) and six CPT conserving LIV parameters (cαβ). In this study, our objective is to calculate the upper bound on all the LIV parameters with respect to the individual experiments and their combination. Our results show that DUNE gives the best sensitivity for the parameters aee, aeμ, aeτ and aμτ in its 7 years of running whereas ICAL gives the best sensitivity on aμμ, aμτ, cee, cμμ, cττ and cμτ in its 10 years of running. For aττ, the sensitivity of DUNE and ICAL is similar. The combination of T2HK, DUNE and ICAL, gives the best sensitivity for aeμ and aee with respect to all the existing bounds in the literature. For the CPT even diagonal parameters (isotropic) cee and cμμ, our work provides the first ever bounds.

Item Type:	Article
Uncontrolled Keywords:	Neutrino Oscillation; Lorentz Invariance Violation
Subjects:	NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Division of Experimental Physics Center of Excellence for Advanced Materials and Sensing Devices
Projects:	Project title Project leader Project code Project type Potpora vrhunskim istraživanjima Centra izvrsnosti za napredne materijale i senzore- Mile Ivanda; Milko Jakšić; Mario Stipčević; Marko Kralj KK.01.1.1.01.0001 EK
Depositing User:	Manojit Ghosh
Date Deposited:	13 Jan 2025 09:36
URI:	http://fulir.irb.hr/id/eprint/9418
DOI:	10.1103/PhysRevD.107.115032

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