# Renormalization effects on neutrino masses and mixing in a string-inspired SU(4)xSU(2){sub L}xSU(2){sub R}xU(1){sub X} model

## Abstract

We discuss renormalization effects on neutrino masses and mixing angles in a supersymmetric string-inspired SU(4)xSU(2){sub L}xSU(2){sub R}xU(1){sub X} model, with matter in fundamental and antisymmetric tensor representations and singlet Higgs fields charged under the anomalous U(1){sub X} family symmetry. The quark, lepton and neutrino Yukawa matrices are distinguished by different Clebsch-Gordan coefficients. The presence of a second U(1){sub X} breaking singlet with fractional charge allows a more realistic, hierarchical light neutrino mass spectrum with bi-large mixing. By numerical investigation we find a region in the model parameter space where the neutrino mass-squared differences and mixing angles at low energy are consistent with experimental data.

- Authors:

- University of Heidelberg, Philosophenweg 16, D-69120 (Germany)
- Theoretical Physics Division, Ioannina University, GR-45110 Ioannina (Greece)

- Publication Date:

- OSTI Identifier:
- 21020206

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevD.75.065027; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CLEBSCH-GORDAN COEFFICIENTS; HIGGS BOSONS; HIGGS MODEL; MASS SPECTRA; MATRICES; NEUTRINOS; QUARKS; RENORMALIZATION; REST MASS; STANDARD MODEL; SU-2 GROUPS; SU-4 GROUPS; SUPERSYMMETRY; SYMMETRY BREAKING; TENSORS; U-1 GROUPS; WEINBERG ANGLE

### Citation Formats

```
Dent, T., Leontaris, G. K., Psallidas, A., and Rizos, J.
```*Renormalization effects on neutrino masses and mixing in a string-inspired SU(4)xSU(2){sub L}xSU(2){sub R}xU(1){sub X} model*. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVD.75.065027.

```
Dent, T., Leontaris, G. K., Psallidas, A., & Rizos, J.
```*Renormalization effects on neutrino masses and mixing in a string-inspired SU(4)xSU(2){sub L}xSU(2){sub R}xU(1){sub X} model*. United States. doi:10.1103/PHYSREVD.75.065027.

```
Dent, T., Leontaris, G. K., Psallidas, A., and Rizos, J. Thu .
"Renormalization effects on neutrino masses and mixing in a string-inspired SU(4)xSU(2){sub L}xSU(2){sub R}xU(1){sub X} model". United States.
doi:10.1103/PHYSREVD.75.065027.
```

```
@article{osti_21020206,
```

title = {Renormalization effects on neutrino masses and mixing in a string-inspired SU(4)xSU(2){sub L}xSU(2){sub R}xU(1){sub X} model},

author = {Dent, T. and Leontaris, G. K. and Psallidas, A. and Rizos, J.},

abstractNote = {We discuss renormalization effects on neutrino masses and mixing angles in a supersymmetric string-inspired SU(4)xSU(2){sub L}xSU(2){sub R}xU(1){sub X} model, with matter in fundamental and antisymmetric tensor representations and singlet Higgs fields charged under the anomalous U(1){sub X} family symmetry. The quark, lepton and neutrino Yukawa matrices are distinguished by different Clebsch-Gordan coefficients. The presence of a second U(1){sub X} breaking singlet with fractional charge allows a more realistic, hierarchical light neutrino mass spectrum with bi-large mixing. By numerical investigation we find a region in the model parameter space where the neutrino mass-squared differences and mixing angles at low energy are consistent with experimental data.},

doi = {10.1103/PHYSREVD.75.065027},

journal = {Physical Review. D, Particles Fields},

number = 6,

volume = 75,

place = {United States},

year = {Thu Mar 15 00:00:00 EDT 2007},

month = {Thu Mar 15 00:00:00 EDT 2007}

}