Restricting CP Violating Phases in Tribimaximal Limit

Sumit K. Garg; Athula D. V; Chaitanya Sampara

doi:10.1007/978-981-95-1513-4_272

Restricting CP Violating Phases in Tribimaximal Limit

Sumit K. Garg^*
, Athula D. V
, Chaitanya Sampara

^*Corresponding author for this work

Manipal Centre for Natural Sciences, Manipal

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We conduct a numerical analysis of the permissible parameter space that aligns with the data on neutrino mixing angles within the perturbed tribimaximal (TBM) framework. Our investigation includes the corrections of the forms U_ij·U_TBM·U_kl, U_TBM·U_ij·U_kl, and U_ij·U_kl·U_TBM for both normal and inverted hierarchy scenarios. In this context, U_TBM represents a tribimaximal mixing matrix, while U denotes a two-dimensional unitary correction matrix that can be characterized by a mixing angle and a phase parameter. We assess the constraints on leptonic CP-violating phases derived from the allowed parameter space.

Original language	English
Title of host publication	Proceedings of the XXVI DAE-BRNS High Energy Physics (HEP) Symposium, 2024
Editors	Lakhwinder Singh, Venktesh Singh, Avijit Kumar Ganguly, Prashant Shukla
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	1196-1199
Number of pages	4
ISBN (Print)	9789819515127
DOIs	https://doi.org/10.1007/978-981-95-1513-4_272
Publication status	Published - 2025
Event	26th DAE-BRNS High Energy Physics Symposium, DAE-BRNS 2024 - Varanasi, India Duration: 19-12-2024 → 23-12-2024

Publication series

Name	Springer Proceedings in Physics
Volume	432 SPPHY
ISSN (Print)	0930-8989
ISSN (Electronic)	1867-4941

Conference

Conference	26th DAE-BRNS High Energy Physics Symposium, DAE-BRNS 2024
Country/Territory	India
City	Varanasi
Period	19-12-24 → 23-12-24

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1007/978-981-95-1513-4_272

Cite this

Garg, S. K., V, A. D., & Sampara, C. (2025). Restricting CP Violating Phases in Tribimaximal Limit. In L. Singh, V. Singh, A. K. Ganguly, & P. Shukla (Eds.), Proceedings of the XXVI DAE-BRNS High Energy Physics (HEP) Symposium, 2024 (pp. 1196-1199). (Springer Proceedings in Physics; Vol. 432 SPPHY). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-95-1513-4_272

Garg, Sumit K. ; V, Athula D. ; Sampara, Chaitanya. / Restricting CP Violating Phases in Tribimaximal Limit. Proceedings of the XXVI DAE-BRNS High Energy Physics (HEP) Symposium, 2024. editor / Lakhwinder Singh ; Venktesh Singh ; Avijit Kumar Ganguly ; Prashant Shukla. Springer Science and Business Media Deutschland GmbH, 2025. pp. 1196-1199 (Springer Proceedings in Physics).

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abstract = "We conduct a numerical analysis of the permissible parameter space that aligns with the data on neutrino mixing angles within the perturbed tribimaximal (TBM) framework. Our investigation includes the corrections of the forms Uij·UTBM·Ukl, UTBM·Uij·Ukl, and Uij·Ukl·UTBM for both normal and inverted hierarchy scenarios. In this context, UTBM represents a tribimaximal mixing matrix, while U denotes a two-dimensional unitary correction matrix that can be characterized by a mixing angle and a phase parameter. We assess the constraints on leptonic CP-violating phases derived from the allowed parameter space.",

author = "Garg, \{Sumit K.\} and V, \{Athula D.\} and Chaitanya Sampara",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.; 26th DAE-BRNS High Energy Physics Symposium, DAE-BRNS 2024 ; Conference date: 19-12-2024 Through 23-12-2024",

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Garg, SK, V, AD & Sampara, C 2025, Restricting CP Violating Phases in Tribimaximal Limit. in L Singh, V Singh, AK Ganguly & P Shukla (eds), Proceedings of the XXVI DAE-BRNS High Energy Physics (HEP) Symposium, 2024. Springer Proceedings in Physics, vol. 432 SPPHY, Springer Science and Business Media Deutschland GmbH, pp. 1196-1199, 26th DAE-BRNS High Energy Physics Symposium, DAE-BRNS 2024, Varanasi, India, 19-12-24. https://doi.org/10.1007/978-981-95-1513-4_272

Restricting CP Violating Phases in Tribimaximal Limit. / Garg, Sumit K.; V, Athula D.; Sampara, Chaitanya.
Proceedings of the XXVI DAE-BRNS High Energy Physics (HEP) Symposium, 2024. ed. / Lakhwinder Singh; Venktesh Singh; Avijit Kumar Ganguly; Prashant Shukla. Springer Science and Business Media Deutschland GmbH, 2025. p. 1196-1199 (Springer Proceedings in Physics; Vol. 432 SPPHY).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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