What does ultrarelativistic limit mean?
Definitions for ultrarelativistic limit
ul·tra·rel·a·tivis·tic lim·it
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Wikipedia
Ultrarelativistic limit
In physics, a particle is called ultrarelativistic when its speed is very close to the speed of light c. The expression for the relativistic energy of a particle with rest mass m and momentum p is given by E 2 = m 2 c 4 + p 2 c 2 . {\displaystyle E^{2}=m^{2}c^{4}+p^{2}c^{2}.} The energy of an ultrarelativistic particle is almost completely due to its momentum (pc ≫ mc2), and thus can be approximated by E = pc. This can result from holding the mass fixed and increasing p to very large values (the usual case); or by holding the energy E fixed and shrinking the mass m to negligible values. The latter is used to derive orbits of massless particles such as the photon from those of massive particles (cf. Kepler problem in general relativity). In general, the ultrarelativistic limit of an expression is the resulting simplified expression when p c ≫ m c 2 {\displaystyle pc\gg mc^{2}} is assumed. Or, similarly, in the limit where the Lorentz factor γ = 1 / 1 − v 2 / c 2 {\displaystyle \gamma =1/{\sqrt {1-v^{2}/c^{2}}}} is very large ( γ ≫ 1 {\displaystyle \gamma \gg 1} ).
Numerology
Chaldean Numerology
The numerical value of ultrarelativistic limit in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of ultrarelativistic limit in Pythagorean Numerology is: 3
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"ultrarelativistic limit." Definitions.net. STANDS4 LLC, 2024. Web. 27 Apr. 2024. <https://www.definitions.net/definition/ultrarelativistic+limit>.
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