Thursday, 27 December 2012

Why Universe Dominated by Matter Not Anti-Matter

Measurements Hint Why the Universe Is Dominated by Matter, Not Anti-Matter

Dec. 26, 2012 — A collaboration with major participation by physicists at the University of Wisconsin-Madison has made a precise measurement of elusive, nearly massless particles, and obtained a crucial hint as to why the universe is dominated by matter, not by its close relative, anti-matter.


A pool holding four anti-neutrino detectors begins filling with ultra-pure water in September, 2012 at the Daya Bay Neutrino experiment. The experiment, just recognized by Science magazine as a breakthrough of the year, is helping to explain why the universe contains virtually no anti-matter. University of Wisconsin-Madison physicist Karsten Heeger and Physical Sciences Laboratory engineer Jeff Cherwinka both played major roles at the experiment. (Credit: Roy Kaltschmidt, Lawrence Berkeley National Laboratory)
The particles, called anti-neutrinos, were detected at the underground Daya Bay experiment, located near a nuclear reactor in China, 55 kilometers north of Hong Kong.

More - Link >>> http://www.sciencedaily.com/releases/2012/12/121226153024.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fspace_time+%28ScienceDaily%3A+Space+%26+Time+News%29&utm_content=Yahoo!+Mail

Sources: University of Wisconsin at Madison, ScienceDaily.com .

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