Skip to content
DraconiticResearch
Search Sources API
194,161 studies31 sourcesUpdated 29 min ago
PreprintCC BY 4.0arXiv

Scalar Non-standard Interactions in Type-II Seesaw

  • Bhaswati Kalita
  • Mrinal Kumar Das
Open at sourcePDFDOICite

Abstract

We study the theoretical origin of scalar non-standard interactions (SNSI) in an A4-symmetric Type-II seesaw model. The model contains an SU(2)L scalar triplet Δ and a real scalar singlet S. After electroweak symmetry breaking, their CP-even neutral fluctuations mix to form two physical scalar states ϕ1 and ϕ2. These physical scalars couple to both neutrinos and charged leptons, establishing a connection between the neutrino sector and ordinary matter through scalar interactions. This induces a matter-dependent correction to the Type-II seesaw neutrino mass matrix. The SNSI contribution, governed by the relevant Yukawa couplings and the SNSI coefficient, can enhance or suppress the neutrino masses relative to their vacuum values. The model provides a simple and consistent description of how scalar mixing can give rise to SNSI and connects neutrino interactions in matter with the underlying structure of the scalar sector.

Related

  1. Electroweak Thermal Histories in the Minimal Type-II Seesaw Model with a Renormalization Group-Improved Effective Potential
    Cheng-Wei Chiang
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsarXiv
  2. Lepton-Number Violation in Higgs Effective Field Theory: Complete Operator Basis and Type-II Seesaw Matching
    Zizhou Ge, Huayang Song, Xia Wan
    arXivPreprintarXiv licenceFull textHigh-energy & particle physicsarXiv
  3. Resurrecting Electroweak Dark Matter via Type-II Seesaw in light of recent LZ Event
    Partha Kumar Paul, Sujit Kumar Sahoo, Narendra Sahu +1
    arXivPreprintCC BY 4.0Full textCosmologyHigh-energy & particle physicsarXiv
  4. Majoron-driven spontaneous leptogenesis in type-II seesaw model
    Eung Jin Chun, Tae Hyun Jung, Jin Sun
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsarXiv
  5. Purely flavon driven leptogenesis for exactly degenerate Dirac or Majorana neutrino mass matrix in the type-I seesaw model
    Yan Shao, Zhen-hua Zhao
    arXivPreprintarXiv licenceFull textHigh-energy & particle physicsarXiv

Cite

BibTeXRIS
BibTeX
@misc{kalita2026scalar,
  title = {{Scalar Non-standard Interactions in Type-II Seesaw}},
  author = {Bhaswati Kalita and Mrinal Kumar Das},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.39616},
  eprint = {2610.39616},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.39616},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Scalar Non-standard Interactions in Type-II Seesaw
AU  - Bhaswati Kalita
AU  - Mrinal Kumar Das
PY  - 2026
DA  - 2026/10/29
PB  - arXiv
DO  - 10.48550/arxiv.2610.39616
UR  - https://arxiv.org/abs/2610.39616
AB  - We study the theoretical origin of scalar non-standard interactions (SNSI) in an A_4-symmetric Type-II seesaw model. The model contains an SU(2)_L scalar triplet Δ and a real scalar singlet S. After electroweak symmetry breaking, their CP-even neutral fluctuations mix to form two physical scalar states ϕ_1 and ϕ_2. These physical scalars couple to both neutrinos and charged leptons, establishing a connection between the neutrino sector and ordinary matter through scalar interactions. This induces a matter-dependent correction to the Type-II seesaw neutrino mass matrix. The SNSI contribution, governed by the relevant Yukawa couplings and the SNSI coefficient, can enhance or suppress the neutrino masses relative to their vacuum values. The model provides a simple and consistent description of how scalar mixing can give rise to SNSI and connects neutrino interactions in matter with the underlying structure of the scalar sector.
ER  -