Slovenian Physicists Publish Paper in Science Journal Nature
A group of Slovenian scientists, taking part in the Belle Collaboration, a large-scale experiment at an electron-positron collider in Japan, have published a paper on anti-matter in the latest edition of the prestigious science journal Nature.
The near disappearance of antimatter - predicted to have formed in equal quantities to matter in the Big Bang - is one of the reasons why life can even exist. A prerequisite for understanding the elimination of antimatter is the nonconservation of charge-parity (CP) symmetry, the journal says in the introduction to the study.
The paper published by the Belle Collaboration tackled this matter by using pairs of subatomic particles to measure CP-violating asymmetries. While previous work had suggested a difference in the decay of charged and neutral particles, the new study reduces uncertainty on the charged particle decay rate asymmetry by a factor of 1.7, providing stronger evidence for a large deviation in direct CP violation between charged and neutral subatomic particle decays.
According to a press release from the Jozef Stefan Institute (IJS), Slovenia's prime scientific institution, the evidence of the large deviation found by the Belle Collaboration possibly points to sources of violation of the CP symmetry not included in the Standard Model of particle physics, a theory that describes fundamental interactions between the elementary particles that make up all matter.
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