Planck mass


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Planck mass

[′pläŋk ‚mas]
(physics)
The mass √(hc /2π G), where h is Planck's constant, c is the speed of light, and G is the gravitational constant; equivalently, the mass of a particle whose reduced Compton wavelength equals the Planck length; it is equal to 21.764 micrograms or 1.2209 × 1019GeV/ c 2.
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G is Newton's gravitational constant, c is the speed of light, m, and [r.sub.*] are the Planck mass and length respectively [4, p.
where the relations ch/[l.sub.p] = [M.sub.p][c.sup.2] and [M.sub.p] = [c.sup.2][l.sub.p]/G ([M.sub.p] being the Planck mass) have been used.
Various calculations based on theory dictate that the Higgs mass should be comparable to a figure called the Planck mass, which is about 17 orders of magnitude higher than the boson's measured heft (SN Online: 10/22/13).
where [[xi].sub.0] = [(2[pi]/ln 2).sup.1/2] [approximately equal to] 3.010 and [m.sub.Pl] [([??]c/G)1.sup./2] is the Planck mass; therefore we see that [m.sub.gr] [varies] 1/[square root of (N)[.
Here [beta] = [[beta].sub.0][l.sup.2.sub.p]/[h.sup.2] = [[beta].sub.0]/[M.sup.2.sub.p][c.sup.2], [[beta].sub.0] ([less than or equal to] [10.sup.34]) is a dimensionless constant and [l.sub.P] and [M.sub.P] are Planck length and Planck mass. Adopting rational approximation, according to the line element and the modified Hamilton-Jacobian equation, we can get the following motion equation of a scalar particle:
The interpretation of the Planck mass as eigenstate in a chain system of oscillating protons has allowed us to derive the proton rest mass from fundamental physical constants [4].
The D-dimensional Planck mass [m.sub.D] is considered as the maximal energy scale in the rest of the article.
Furthermore, the interpretation of the Planck mass as an eigenstate in a chain system of oscillating protons has allowed us to derive the proton rest mass from fundamental physical constants [5].
Assuming that (1) is not just a coincidence implies that it is valid at any epoch; then using (4) since the FLRW metric describes a simple 4-ball, we can slice it with 4-spheres centered at the origin, of radius r and thickness 2 [l.sub.p] (both along the light cone), and each slice adds an identical energy increment [M.sub.p], the non-reduced Planck mass, and it looks like the universe is a Planck power space-time generator.
where -[pi] [less than or equal to] [phi] [less than or equal to] [pi] is the extra dimension coordinate, the coefficient [r.sub.c] is the compactification radius, and the parameter k is related to the 5-D Planck mass, M.
The existence of the Planck mass [+ or -] [M.sub.Pl] = [+ or -] [([??]c/G).sup.1/2] opens a unique opportunity to represent a macroscopic space-like structure.
At the Planck mass the slope is infinite, corresponding to the zero heat capacity of the black hole.