ANTIMATTER!!!!

after reading dan brown's novel angel n demons, i really got interested in this topic...also my friend Dj is also a freak abt particle physics..so we both decided to do something on the topic..
its a very interesting topic n lot of research is going on..
a brief intro abt the topic

Everything in nature has its own counterpart Light has Dark, Day has Night and
Life has Death. Similarly for equilibrium to be maintained, matter also has its exact opposite,
named antimatter. Antimatter has a negative nucleus with positrons revolving around it. The
masses of a particle and its respective anti particle are the same. The charges are equal in
magnitude but opposite in sign. When antimatter comes into contact with matter it annihilates
and their kinetic plus rest-mass energy is converted into other particles according to the
relation E = mc2. For example, when an electron and a positron annihilate at rest, two gamma
rays, each with energy 511 keV, are produced. Theoretically the amount of energy released
from annihilation of one milligram of antimatter and matter can supply power for the whole
of New York City for one week.


The universe seems to contain no significant amounts of antimatter, despite
expectations that both should have been created equally during the big bang. So where did all
the antimatter go? One possible explanation could be a subtle and unexpected difference in
the properties of matter and antimatter, leading to a slight excess of matter which survived the
initial cataclysm of matter-antimatter annihilation. Experimenters at CERN are producing
antimatter in particle accelerators to search for and study this difference. Antimatter also has
real-life medical applications, such as positron emission tomography—PET scans. But
because producing antimatter even in minuscule quantities is very difficult.