Neutrinoless double beta decay in a left-right symmetric model with a double seesaw mechanism

Patra, Sudhanwa; Petcov, S.T.; Pritimita, Prativa; Sahu, Purushottam

doi:10.1103/physrevd.107.075037

Phys. Rev. D

2023

DOI: 10.1103/physrevd.107.075037

|View full text |Cite

Neutrinoless double beta decay in a left-right symmetric model with a double seesaw mechanism

Sudhanwa Patra

S.T. Petcov

Prativa Pritimita

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

2024

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 5 publications

References 136 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Leptogenesis in a Left-Right Symmetric Model with double seesaw

Patel,

Adarsh,

Patra

et al. 2024

J. High Energ. Phys.

View full text Add to dashboard Cite

We explore the connection between low-scale CP-violating Dirac phase (δ) and high-scale leptogenesis in a Left-Right Symmetric Model (LRSM) with scalar bidoublet and doublets. The fermion sector of the model is extended with one sterile neutrino (SL) per generation to implement a double seesaw mechanism in the neutral fermion mass matrix. The double seesaw is performed via the implementation of type-I seesaw twice. The first seesaw facilitates the generation of Majorana mass term for heavy right-handed (RH) neutrinos (NR), and the light neutrino mass becomes linearly dependent on SL mass in the second. In our framework, we have taken charge conjugation (C) as the discrete left-right (LR) symmetry. This choice assists in deriving the Dirac neutrino mass matrix (MD) in terms of the light and heavy RH neutrino masses and light neutrino mixing matrix UPMNS (containing δ). We illustrate the viability of unflavored thermal leptogenesis via the decay of RH neutrinos by using the obtained MD with the masses of RH neutrinos as input parameters. A complete analysis of the Boltzmann equations describing the asymmetry evolution is performed in the unflavored regime, and it is shown that with or without Majorana phases, the CP-violating Dirac phase is sufficient to produce the required asymmetry in the leptonic sector within this framework for a given choice of input parameters. Finally, we comment on the possibility of constraining our model with the current and near-future oscillation experiments, which are aimed at refining the value of δ.

show abstract

Leptogenesis in a Left-Right Symmetric Model with double seesaw

Patel,

Adarsh,

Patra

et al. 2024

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

Nuclear matrix elements of neutrinoless double-beta decay in covariant density functional theory with different mechanisms

Ding,

Li,

Yao

2024

Physics Letters B

View full text Add to dashboard Cite

Leptogenesis in a Left-Right Symmetric Model with double seesaw

Patel,

Adarsh,

Patra

et al. 2024

EPJ Web Conf.

View full text Add to dashboard Cite

We explore the connection between the low-scale CP-violating Dirac phase (δ) and high-scale leptogenesis in a Left-Right Symmetric Model (LRSM) with scalar bidoublet and doublets. The model’s fermion sector includes one sterile neutrino (SL) per generation to enable a double seesaw mechanism in the neutral fermion mass matrix, implemented by performing type-I seesaw twice. The first seesaw generates the Majorana mass term for heavy right-handed (RH) neutrinos (NR), and in the second, the light neutrino mass is linearly dependent on S L mass. We use charge conjugation (C) as the discrete left-right (LR) symmetry, aiding in deriving the Dirac neutrino mass matrix (MD) in terms of light and heavy RH neutrino masses and the light neutrino mixing matrix UPMNS (containing δ). We demonstrate the feasibility of unflavored thermal leptogenesis via RH neutrino decay using the obtained MD and RH neutrino masses as input. A thorough analysis of the Boltzmann equations describing asymmetry evolution is conducted in the unflavored regime, showing that the CP-violating Dirac phase alone can generate the required leptonic asymmetry for given input parameters, with or without Majorana phases. Finally, we discuss constraining our model with current and upcoming oscillation experiments aimed at refining the value of δ.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Neutrinoless double beta decay in a left-right symmetric model with a double seesaw mechanism

Cited by 5 publications

References 136 publications

Leptogenesis in a Left-Right Symmetric Model with double seesaw

Leptogenesis in a Left-Right Symmetric Model with double seesaw

Nuclear matrix elements of neutrinoless double-beta decay in covariant density functional theory with different mechanisms

Leptogenesis in a Left-Right Symmetric Model with double seesaw

Contact Info

Product

Resources

About