12 Matter Particles Suffice in Nature: Limited Number of Fermions in Standard Model?
How many matter particles exist in nature? Particle physicists have been dealing with this question for a long time. The 12 matter particles contained in the standard model of particle physics? Or are there further particles with too high a mass to be produced by the experiments performed so far? These questions are now answered by researchers of KIT, CERN, and Humboldt University in the current issue
Neutralino excluded up to ~250 GeV
The neutralino is excluded up to ~250 GeV.At the Hadron Collider Physics Symposium 2012 hosted by Kyoto University, the new CMS results were reported.
Higgs results updated with 7 sigma
Significance of Higgs particle has been up to 7 sigma now.The Hadron Collider Physics Symposium 2012 hosted by Kyoto University, The new CMS results were reported.
Higgs Particle has been discovered by LHC!
Finally the Higgs Particle has been discovered by LHC! Here is the Higgs -> two gamma decay, observed by CMS. The paper is available here.