'What is Dark Matter?' - My Own Perspectives

Journal Article · Tue Jul 07 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3192249· OSTI ID:21344256

Hwang, W.-Y. Pauchy ^[1]

---

1. Leung Center for Cosmology and Particle Astrophysics, Institute of Astrophysics, Center for Theoretical Sciences, and Department of Physics, National Taiwan University, Taipei 106, Taiwan (China)

Nowadays we know that, in our Universe, dark matter occupies about 25% of the content, compared to only 5% of the 'visible' ordinary matter. In this talk, we propose that the description of dark matter would be an extension of the Standard Model - a gauge theory. We all know that in the Standard Model we have three generations but still don't know why - the so-called 'family problem'. On other hand, in view of the masses and oscillations, the neutrinos now present some basic difficulty in the Standard Model. Thus, I propose that on top of the SU{sub c}(3)xSU(2)xU(1) standard model there is an SU{sub f}(3) extension--a simple SU{sub c}(3)xSU(2)xU(1)xSU{sub f}(3) extended standard model. The family gauge bosons (familons) are massive through the so-called 'colored' Higgs mechanism while the remaining Higgs particles are also massive. The three neutrinos, the electron-like, muon-like, and tao-like neutrinos, form the basic family triplets. Hopefully all the couplings to the 'visible' matter are through the neutrinos, explaining why the dark matter is more than the visible matter in our Universe.

• OSTI ID: 21344256
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1150; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GAUGE INVARIANCE
GRAND UNIFIED THEORY
HIGGS BOSONS
HIGGS MODEL
INVARIANCE PRINCIPLES
LEPTONS
LIE GROUPS
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
MUONS
NEUTRINO OSCILLATION
NEUTRINOS
NONLUMINOUS MATTER
PARTICLE MODELS
PHASE TRANSFORMATIONS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
REST MASS
STANDARD MODEL
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
UNIVERSE