Why is the universe made of matter instead of anti - matter ? This question , which might seem trivial at first , has kept physicists busy for many decades , but we are easy getting an answer .
accord to the Standard Model of Particle Physics , the theory of fundamental physics , affair , and anti - matter are perfectly mirrored , so there must be mechanism that give matter an advantage .
Now , Nipponese researcher might have found one of these mechanisms . According to preliminary effect from theTokai to Kamioka ( T2 K ) neutrino experiment , neutrino vibration happen more often than anti - neutrino cycle , which could have play a expectant role in matter authorization after the Big Bang .
neutrino are lilliputian fundamental particles with no charge that are produce in nuclear reaction . Every second , a constant stream of one million million million of neutrinos fare from the Sun pass through your body . There are three type , or " savour " , of neutrinos ( electron , negative muon , tau ) , and neutrinos oscillate between these three .
The T2 K experimentation discover these oscillations by shooting a neutrino radio beam from a research center in Tokai to the Super - Kamiokande neutrino detector 295 kilometers ( 183 miles ) away .
Hirohisa Tanaka of the University of Toronto , Canada , reported the latest result from T2 K at the27th International Conference on Neutrino Physics and Astrophysics ( Neutrino 2016 ) . The experiment detected 32 muon neutrino turn into electron neutrinos , compare to only four muon anti - neutrinos becoming electron anti - neutrino .
This finding is definitely interesting , but it is too shortly to give our physics book out of the windowpane . The detection has a authority level of two sigma , which is saying that they would see such a difference once every 20 time the experimentation is repeated .
The lucky monetary standard for a physical science discovery is five sigma , which cut the fortune that the observation is a fluke to one in 3.5 million .
If the enquiry is confirmed , this could be an interesting violation of a fundamental proportion of physics telephone CP , which stands for Charge and Parity . The charge balance requires that if we flip every particle for its antiparticle , and mirrored the set up of the blank , physics is expected to comport in the same way . Recently , another interesting violation of CP was mention with the discovery of a newpear - form atom .
We are mindful that there ’s physicsbeyond the Standard Model , and maybe we are close to finding out what that is .
[ H / T : New Scientist ]
