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posted by martyb on Friday February 03 2017, @12:39AM   Printer-friendly
from the antimatter-doesn't-not-matter dept.

Why is there a Universe, and why is it filled with matter, and not equal amounts of matter and antimatter? The last question is a puzzle that has gainfully occupied the minds of and employed physicists for many years. The time spent pondering such questions has not been wasted, as it turns out, as researchers from the Large Hadron Collider b detector report that one of the theoretical paths that allows matter to outnumber antimatter is open for business....Researchers at the LHCb have shown that baryons (along with mesons) also violate Charge-Parity (CP) symmetry, thus making it statistically possible for more matter to be created than antimatter.

(Caveat: Dataset currently provides "only" a 3.3 sigma confidence level.)

The full article, Measurement of matter–antimatter differences in beauty baryon decays which appears in the journal Nature Physics is available at: http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys4021.html

Other coverage:
Ars Technica
phys.org

http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys4021.html


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  • (Score: 0) by Anonymous Coward on Friday February 03 2017, @09:43PM

    by Anonymous Coward on Friday February 03 2017, @09:43PM (#462597)

    By convention, the particle physics community doesn't get super excited until they see it at least at the 5-sigma level [scientificamerican.com].