Basis independent neutrino masses in the [Formula Presented] violating minimal supersymmetric standard model

Sacha Davidson, Marta Losada

Research output: Contribution to journalArticle

Abstract

We calculate the neutrino mass matrix up to one loop order in the minimal supersymmetric standard model without R parity, including the bilinears in the mass insertion approximation. This introduces additional diagrams usually neglected in the literature. We systematically consider the possible new diagrams, and find a few missing from our previous work. We provide analytic expressions for the mass matrix elements in the neutrino flavor basis, which are independent of the (Formula presented) basis choice in the Lagrangian. We compare the contributions from different diagrams, and make “Lagrangian-basis-independent” estimates of when the new diagrams need to be included. We briefly discuss the phenomenology of a toy model of bilinear R-parity violation.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume65
Issue number7
DOIs
StatePublished - Jan 1 2002

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neutrinos
diagrams
parity
matrices
phenomenology
insertion
estimates
approximation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Basis independent neutrino masses in the [Formula Presented] violating minimal supersymmetric standard model. / Davidson, Sacha; Losada, Marta.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 65, No. 7, 01.01.2002.

Research output: Contribution to journalArticle

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