Supersymmetric B-L Extended Standard Model with Right-Handed Neutrino Dark Matter Nobuchika Okada Miami 2010 @ Fort Lauderdale, Dec. 14-19, 2010 University of Alabama Tuscaloosa, AL In collaboration with Zachary M. Burell (U. of Alabama) Paper in preparation
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Supersymmetric B-L Extended Standard Model with Right-Handed Neutrino Dark Matter
Supersymmetric B-L Extended Standard Model with Right-Handed Neutrino Dark Matter. Nobuchika Okada. University of Alabama Tuscaloosa, AL. In collaboration with Zachary M. Burell (U. of Alabama). Paper in preparation. Miami 2010 @ Fort Lauderdale, Dec. 14-19, 2010. - PowerPoint PPT Presentation
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Supersymmetric B-L Extended Standard Model with Right-Handed Neutrino Dark Matter
Nobuchika Okada
Miami 2010 @ Fort Lauderdale, Dec. 14-19, 2010
University of Alabama Tuscaloosa, AL
In collaboration with Zachary M. Burell (U. of Alabama)
Paper in preparation
Problems in Standard Model
The Standard Model (SM) is the best theory in describing the nature of elementary particle physics, which is in excellent agreement with almost of all current experimental results However, New Physics beyond SM is strongly suggested by both experimental & theoretical point of view
What is missing in the SM?
1. Neutrino masses and mixings
Oscillation data
Very small mass scaleLarge mixing angle
Existence of Dark Matter has been established!
Wilkinson Microwave Anisotropy Probe (WMAP) satellite has established the energy budget of the present Universe with a great accuracy
Dark Matter particle: non-baryonic electric charge neutral (quasi) stable
2. Dark Matter Problem
No suitable DM candidates in the SM
Seesaw Mechanism
Effective operator:
If the seesaw scale
Naturally,
The seesaw scale lies in the intermediate scale or lower
How to naturally incorporate tiny neutrino masses in the SM?