Equation 105 · Part 2 · No Particle Without a Cosigner

Symbol a

T_U = \hbar a/(2\pi c k_B) \sim 3\times10^3\,\mathrm K

a

What this part means

a is an input to the expression that computes the quantity on the left.

Its job in the formula

a is an input to the expression that computes the quantity on the left.

Full expressionSymbol aArticle meaning

The passage around this formula

Electrons circulating in a storage ring undergo enormous proper acceleration — for an ultra-relativistic beam of Lorentz factor $\gamma$ on a ring of radius r , the proper centripetal acceleration is a $\approx$ $\gamma^2$ $c^2$ /r . For beam parameters typical of a large electron-positron collider, with $\gamma$ of order 2 $\times$ 10^5…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the surrounding passage

[13] Electrons as Accelerated Thermometers ↗

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