High Energy Particle Physics


On the Evidence of the Number of Colours in Particle Physics

Authors: Syed Afsar Abbas, Sajad Ahmad Sheikh, Sheikh Salahudin, Mohsin Ilahi

It is commonly believed ( and as well reflected in current textbooks in particle physics ) that the R ratio in $e^+ e^-$ scattering and $\pi^0 \rightarrow \gamma \gamma$ decay provide strong evidences of the three colours of the Quantum Chromodynamics group ${SU(3)}_c$. This is well documented in current literature. However, here we show that with a better understanding of the structure of the electric charge in the Standard Model of particle physics at hand, one rejects the second evidence as given above but continues to accept the first one. Thus $\pi^0 \rightarrow \gamma \gamma$ decay is not a proof of three colours anymore. This fact is well known. However unfortunately some kind of inertia has prevented this being taught to the students. As such the textbooks and monographs should be corrected so that more accurate information may be transmitted to the students.

Comments: 6 Pages.

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Submission history

[v1] 2017-08-17 22:38:32
[v2] 2017-08-18 23:54:36

Unique-IP document downloads: 134 times

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