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Title: Compact perturbative expressions for neutrino oscillations in matter

Journal Article · · Journal of High Energy Physics (Online)
ORCiD logo [1];  [2]; ORCiD logo [3]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Vanderbilt Univ., Nashville, TN (United States)
  2. Univ. de Sao Paulo, Sao Paulo (Brazil); Yachay Tech Univ., San Miguel de Urcuqui (Ecuador)
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

We further develop and extend a recent perturbative framework for neutrino oscillations in uniform matter density so that the resulting oscillation probabilities are accurate for the complete matter potential versus baseline divided by neutrino energy plane. This extension also gives the exact oscillation probabilities in vacuum for all values of baseline divided by neutrino energy. The expansion parameter used is related to the ratio of the solar to the atmospheric $$\Delta m^2$$ scales but with a unique choice of the atmospheric $$\Delta m^2$$ such that certain first-order effects are taken into account in the zeroth-order Hamiltonian. Using a mixing matrix formulation, this framework has the exceptional feature that the neutrino oscillation probability in matter has the same structure as in vacuum, to all orders in the expansion parameter. It also contains all orders in the matter potential and $$\sin\theta_{13}$$. It facilitates immediate physical interpretation of the analytic results, and makes the expressions for the neutrino oscillation probabilities extremely compact and very accurate even at zeroth order in our perturbative expansion. Furthermore, the first and second order results are also given which improve the precision by approximately two or more orders of magnitude per perturbative order.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1256704
Report Number(s):
FERMILAB-PUB-16-126-T; YACHAY-PUB-16-01-PN; arXiv:1604.08167; 1452689
Journal Information:
Journal of High Energy Physics (Online), Vol. 2016, Issue 6; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 52 works
Citation information provided by
Web of Science

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Cited By (11)

Signatures of the genuine and matter-induced components of the CP violation asymmetry in neutrino oscillations journal November 2018
Symmetric formulation of neutrino oscillations in matter and its intrinsic connection to renormalization-group equations journal March 2017
Physics potentials with the second Hyper-Kamiokande detector in Korea journal June 2018
Decoherence in neutrino propagation through matter, and bounds from IceCube/DeepCore journal August 2018
Effects of Atomic-Scale Electron Density Profile and a Fast and Efficient Iteration Algorithm for Matter Effect of Neutrino Oscillation journal January 2020
Looking into Analytical Approximations for Three-flavor Neutrino Oscillation Probabilities in Matter text January 2016
Sensitivities and synergies of DUNE and T2HK text January 2016
Matter Density Profile Shape Effects at DUNE text January 2018
Rotations Versus Perturbative Expansions for Calculating Neutrino Oscillation Probabilities in Matter text January 2018
Signatures of the genuine and matter-induced components of the CP violation asymmetry in neutrino oscillations text January 2018
Physics with Beam Tau-Neutrino Appearance at DUNE text January 2019

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