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Testing T2K’s Bayesian constraints with priors in alternate parameterisations

Publication ,  Journal Article
Zsoldos, S; Zito, M; Zimmerman, ED; Ziembicki, M; Zhu, T; Zhong, H; Zheng, H; Zhao, XY; Zhang, J; Zarnecki, G; Zalipska, J; Zalewska, A ...
Published in: European Physical Journal C
December 1, 2025

Bayesian analysis results require a choice of prior distribution. In long-baseline neutrino oscillation physics, the usual parameterisation of the mixing matrix induces a prior that privileges certain neutrino mass and flavour state symmetries. Here we study the effect of privileging alternate symmetries on the results of the T2K experiment. We find that constraints on the level of CP violation (as given by the Jarlskog invariant) are robust under the choices of prior considered in the analysis. On the other hand, the degree of octant preference for the atmospheric angle depends on which symmetry has been privileged.

Duke Scholars

Published In

European Physical Journal C

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

December 1, 2025

Volume

85

Issue

12

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Zsoldos, S., Zito, M., Zimmerman, E. D., Ziembicki, M., Zhu, T., Zhong, H., … Roth, S. (2025). Testing T2K’s Bayesian constraints with priors in alternate parameterisations. European Physical Journal C, 85(12). https://doi.org/10.1140/epjc/s10052-025-14836-0
Zsoldos, S., M. Zito, E. D. Zimmerman, M. Ziembicki, T. Zhu, H. Zhong, H. Zheng, et al. “Testing T2K’s Bayesian constraints with priors in alternate parameterisations.” European Physical Journal C 85, no. 12 (December 1, 2025). https://doi.org/10.1140/epjc/s10052-025-14836-0.
Zsoldos S, Zito M, Zimmerman ED, Ziembicki M, Zhu T, Zhong H, et al. Testing T2K’s Bayesian constraints with priors in alternate parameterisations. European Physical Journal C. 2025 Dec 1;85(12).
Zsoldos, S., et al. “Testing T2K’s Bayesian constraints with priors in alternate parameterisations.” European Physical Journal C, vol. 85, no. 12, Dec. 2025. Scopus, doi:10.1140/epjc/s10052-025-14836-0.
Zsoldos S, Zito M, Zimmerman ED, Ziembicki M, Zhu T, Zhong H, Zheng H, Zhao XY, Zhang J, Zarnecki G, Zalipska J, Zalewska A, Zaki R, Yoshimura Y, Yoshimoto Y, Yokoyama M, Yevarouskaya U, Yershov N, Yano T, Yang Y, Yanagisawa C, Yamamoto T, Yamamoto K, Xia J, Wret C, Wood K, Wilson JR, Wilkinson C, Wilking MJ, Wendell R, Weber A, Wascko MO, Wark D, Wan L, Walsh JG, Wallace HT, Wakabayashi D, Wada SI, Wachala T, Vladisavljevic T, Virginet U, Villa E, Vasseur G, Vasilyev I, Varghese M, Vagins M, Uchida Y, Tzanov M, Tsukamoto T, Tran N, Touramanis C, Thamm N, Tereshchenko VV, Tanigawa H, Tanaka HK, Takeya K, Takeuchi M, Takeda A, Tairafune S, Tada M, Suzuki SY, Suzuki A, Suslov IA, Stroke Y, Stowell P, Srivastava A, Spina R, Speers AJ, Soler FJP, Sobel H, Sobczyk JT, Smy M, Smyczek D, Skwarczynski K, Skrobova N, Shvartsman A, Shiraishi Y, Shiozawa M, Shaikhiev A, Sgalaberna D, Seppala D, Sekiya T, Sekiya H, Sekiguchi T, Seiya Y, Scott M, Scholberg K, Schloesser CM, Schefke T, Sato Y, Sandford EM, Sánchez F, Samani S, Sakashita K, Saenz W, Rychter A, Russo L, Rubbia A, Roy N, Roth S. Testing T2K’s Bayesian constraints with priors in alternate parameterisations. European Physical Journal C. 2025 Dec 1;85(12).
Journal cover image

Published In

European Physical Journal C

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

December 1, 2025

Volume

85

Issue

12

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics