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 Hd-Li 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 language | English (US) |
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Article number | 075025 |
Pages (from-to) | 750251-7502517 |
Number of pages | 6752267 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 65 |
Issue number | 7B |
DOIs | |
State | Published - Apr 1 2002 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)