The proton size, the fine-structure constant and the electron electric dipole moment

Eric Hessels
York University (Canada)
ICAP 2022
Thursday, Jul 21, 2:35 PM
The proton size, the fine-structure constant and the electron electric dipole moment
Fundamental physics (including physics beyond the Standard Model) can be tested using table-top precision measurements. The talk will describe measurements of the size of the proton, the fine-structure constant and the electric dipole moment of the electron. Two recently completed measurements will be described. For the first measurement, the n=2 Lamb shift of atomic hydrogen is measured, allowing for a new determination of the charge radius of the proton. This determination is crucial to helping resolve the proton radius puzzle, in which it appeared that the proton radius took on a different value when measured with muons compared to measurements using electrons. The second measurement is of the n=2 triplet P fine structure of atomic helium, and this work is part of a program to obtain a new determination of the fine-structure constant. Both of these measurements use a new measurements technique: Frequency offset separated oscillatory fields. Finally, a new major effort (EDM^3) is starting to measure the electron electric dipole moment using polar molecules embedded into inert-gas solids.

[@robmorgan1214]

This is a very elegant measurement! Great work.

[@matthewjpace91]

Watched this yesterday and I said this thing yesterday when talking with someone about the cosmologicql constant. Just came out in conversation as a theoretical "...maybe there's 137 elements in this universe or something..." looked it up this morning... there's EXACTLY 137 possible elements in nature... let me tell you...CHILLS

[@manfredgeilhaupt5070]

The FSC depends on the metric (g44) of space: alpha=1/beta^2*1/g44*3/4*(1+1/beta*ln(1/3))^2=1/137.035999022
and S=k*ln(1/3), W=1/3 due to x,y,z-Space-Dimension for now.

[@SpotterVideo]

What do the Twistors of Roger Penrose and the Hopf Fibrations of Eric Weinstein and the "Belt Trick" of Paul Dirac have in common?
In Spinors it takes two complete turns to get down the "rabbit hole" (Alpha Funnel 3D--->4D) to produce one twist cycle (1 Quantum unit).
Can both Matter and Energy be described as "Quanta" of Spatial Curvature? (A string is revealed to be a twisted cord when viewed up close.) Mass= 1/Length, with each twist cycle of the 4D Hypertube proportional to Planck’s Constant.
In this model Alpha equals the compactification ratio within the twistor cone, which is approximately 1/137.
1= Hypertubule diameter at 4D interface
137= Cone’s larger end diameter at 3D interface where the photons are absorbed or emitted.
The 4D twisted Hypertubule gets longer or shorter as twisting or untwisting occurs. (720 degrees per twist cycle.)

[@jarekk.8247]

A better approximation to the fine structure constant:
α = 1/(641^φ*e^5)^(1/π) = 0,007297352568 φ = 1,6180339887... golden ratio, e = 2,7182818284... (Napier's constant, Euler's number) or
α = 1/[5164926^(1/π)] = 0,007297352564
The universe is probably a fractal on the largest scale with the number of dimensions equal to π.

[@manfredgeilhaupt5070]

@@jarekk.8247 Pauli: we need a principle theory to reveal the alpha-number!

[@manfredgeilhaupt5070]

@@SpotterVideo restriction on electron: lambda_compton=4*pi*rG (two circles?)

[@jaycorrales5329]

@04:14 They are measuring the 2S(1/2) to 2P(1/2) level. @13:55 and the answer is about 0.84 rms charge radius (which he doesn't say explicitly) for proton size, and only took about 40 years (since 1980) and a decade of cpu time to know this. Finally there is disagreement on the proton size.