were observed in the examination of 5 c.c. emulsion. This corresponds to the arrival of about 1-5 mesons per c.c. per day, a figure which represents a lower limit, for the tracks of some mesons ...

IN Part 1 of the present article*, we showed that two types of mesons exist, and it was suggested that the heavier, π-mesons, decay to produce the lighter, μ-mesons. In this second part ...

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In 1964 James Cronin and Val Fitch discovered that this symmetry is violated by the weak force at 1 part in 1,000 in mesons that had strange quarks. In 1973 Makoto Kobayashi and Toshikide Maskawa ...

The enigmatic Ξ (2030) particle, once thought to consist of three quarks, may actually be a molecular pentaquark – an exotic ...

Physicists share a common interest in understanding how the physical world works. For example, when a particle physicist breaks apart a particle into smaller pieces, they ask themselves: are those the ...

Mixtures of three quarks are called baryons — such as the proton and the neutron — and combinations of quarks and their antimatter opposites are called mesons. When individual quarks are ...

Kaons, also known as K mesons, are made of two quarks. Charged kaons — the subject of the experiment — contain an up quark and an anti-strange quark. Without getting too far into the weeds ...

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1980: James Watson Cronin and Val Logsdon Fitch, "for the discovery of violations of fundamental symmetry principles in the decay of neutral K-mesons." 1979: Sheldon Lee Glashow, Abdus Salam and ...