Classical Calculation of the Radii of Proton and Electron

International Journal of Applied Physics
© 2024 by SSRG - IJAP Journal
Volume 11 Issue 2
Year of Publication : 2024
Authors : Detlev Füchtenbusch

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How to Cite?

Detlev Füchtenbusch, "Classical Calculation of the Radii of Proton and Electron," SSRG International Journal of Applied Physics, vol. 11,  no. 2, pp. 1-5, 2024. Crossref, https://doi.org/10.14445/23500301/IJAP-V11I2P102

Abstract:

In his model, Bohr had the electron orbit around the center of gravity of the hydrogen atom. He manipulated classical physics by demanding freedom from radiation for this accelerated motion. In this article, his model is used, and the radiation of electromagnetic energy is explicitly permitted. The energy remains in the atom so that there is no loss to the outside. For the surfaces of the proton and electron, which are assumed to be spherical, a direct proportionality to the atomic volume and the radiation power and an inverse proportionality to the binding energy are derived. The binding energy of the hydrogen atom known from the literature is used to calculate the particle radii. The radiation powers of the proton and electron are determined using their kinetic data. The volume of the hydrogen atom is calculated using values from the literature. With these data, a proton radius in the order of 6*10-16 m to 19*10-16 m can be derived. For the electron, this results in a radius range of approximately 3*10-19 m to 10*10-19 m. With the numerical values of the two authors, the proton radius can be narrowed down to a range of 8.42*10-16 m and 8.83*10-16 m. The corresponding electron radii can be calculated as 4.59*10- 19 m and 4.81*10-19 m.

Keywords:

Bohr’s atomic model, Atomic volume, Radiation power, Energy flow, Energy density, Surface radiation balance.

References:

[1] Charles Augustin de Coulomb, Four Treatises on Electricity and Magnetism, Academic Publishing Company, pp. 1-89, 1921.
[Google Scholar] [Publisher Link]
[2] Michael Faraday, “VI. Experimental Researches in Electricity.-Seventh Series,” Philosophical Transactions of the Royal Society of London, vol. 124, 77-122, 1834.
[CrossRef] [Google Scholar] [Publisher Link]
[3] J. J. Thomson, “XXIV. On the Structure of the Atom: An Investigation of the Stability and Periods of Oscillation of a Number of Corpuscles Arranged at Equal Intervals Around the Circumference of a Circle; With Application of the Results to the Theory of Atomic Structure,” The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, vol. 7, no. 39, pp. 237-265, 1904.
[CrossRef] [Google Scholar] [Publisher Link]
[4] E. Rutherford, LXXIX. The Scattering of α and β Particles by Matter and the Structure of the Atom,” The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, vol. 21, no. 125, pp. 669-688, 1911.
[CrossRef] [Google Scholar] [Publisher Link]
[5] H. Geiger and E. Marsden, “LXI. The Laws of Deflexion of a Particles Through Large Angles,” The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, vol. 25, no. 148, pp. 604-623, 1913.
[CrossRef] [Google Scholar] [Publisher Link]
[6] Nevill Francis Mott, “The Scattering of Fast Electrons by Atomic Nuclei,” Proceedings of the Royal Society of London, vol. 124, no. 794, pp. 425-442, 1929.
[CrossRef] [Google Scholar] [Publisher Link]
[7] M. N. Rosenbluth, “High Energy Elastic Scattering of Electrons on Protons,” Physical Review Journals Archive, vol. 79, no. 4, pp. 615- 619, 1950.
[CrossRef] [Google Scholar] [Publisher Link]
[8] A. Antognini et al., “Experiments Towards Resolving the Proton Charge Radius Puzzle,” EPJ Web of Conferences, vol. 113, pp. 1-10, 2016.
[CrossRef] [Google Scholar] [Publisher Link]
[9] Dimitri Bourilkov, “Search for TeV Strings and New Phenomena in Bhabha Scattering at CERN LEP2,” Physical Review D, vol. 62, no. 7, 2000.
[CrossRef] [Google Scholar] [Publisher Link]
[10] Robert Hofstadter and Robert W. McAllister, “Electron Scattering from the Proton,” Physical Review Journals Archive, vol. 98, no. 1, pp. 217-218, 1955.
[CrossRef] [Google Scholar] [Publisher Link]
[11] A. Antognini, “Muonic Atoms and the Nuclear Structure,” Laser Spectroscopy: XXII International Conference on Laser Spectroscopy, pp. 17-26, 2016.
[CrossRef] [Google Scholar] [Publisher Link]
[12] Alexey Grinin et al., “Two-Photon Frequency Comb Spectroscopy of Atomic Hydrogen,” Science, vol. 370, no. 6520, pp. 1061-1066, 2020.
[CrossRef] [Google Scholar] [Publisher Link]
[13] W. Xiong et al., “A Small Proton Charge Radius from an Electron-Proton Scattering Experiment,” Nature, vol. 575, no. 7781, pp. 147- 150, 2019.
[CrossRef] [Google Scholar] [Publisher Link]
[14] John Archibald Wheeler and Richard Phillips Feynman, “Interaction with the Absorber as the Mechanism of Radiation,” Reviews of Modern Physics, vol. 17, no. 2-3, pp. 157-181, 1945.
[CrossRef] [Google Scholar] [Publisher Link]
[15] John Archibald Wheeler and Richard Phillips Feynman, “Classical Electrodynamics in Terms of Direct Interparticle Action,” Reviews of Modern Physics, vol. 21, no. 3, pp. 425-433, 1949.
[CrossRef] [Google Scholar] [Publisher Link]
[16] N. Bohr, “I. On the Constitution of Atoms and Molecules,” The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, vol. 26, no. 151, pp. 1-25, 1913.
[CrossRef] [Google Scholar] [Publisher Link]
[17] N. Bohr, “XXXVII. On the Constitution of Atoms and Molecules,” The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, vol. 26, no. 153, pp. 476-502, 1913.
[CrossRef] [Google Scholar] [Publisher Link]
[18] N. Bohr, “The Spectra of Helium and Hydrogen,” Nature, vol. 92, no. 2295, pp. 231-232, 1913.
[CrossRef] [Google Scholar] [Publisher Link]
[19] Rudolf Langkau, and Gunnar Lindström, Physics Compact: Electrodynamics, Vieweg+Teubner Publishing, pp. 1-288, 1996.
[Google Scholar] [Publisher Link]
[20] Rudolf Langkau, Gunnar Lindström, and Wolfgang Scobel, Physics Compact: Electromagnetic Waves, Vieweg+Teubner Verlag, pp. 1-246, 2001.
[Google Scholar] [Publisher Link]
[21] Nathaniel Warren Alcock, Bonding and Structure: Structural Principles in Inorganic and Organic Chemistry, Ellis Horwood, pp. 1- 321, 1990.
[Google Scholar] [Publisher Link]
[22] Atomic Radii, Internetchemie.Info. [Online]. Available: https://www.internetchemie.info/chemische-elemente/atomradien.php
[23] Pekka Pyykkö and Michiko Atsumi, “Molecular Single‐Bond Covalent Radii for Elements 1-118,” Chemistry A European Journal, vol. 15, no. 1, pp. 186-197, 2008.
[CrossRef] [Google Scholar] [Publisher Link]
[24] Beatriz Cordero et al., “Covalent Radii Revisited,” Dalton Transactions, no. 21, pp.2832-2838, 2008.
[CrossRef] [Google Scholar] [Publisher Link]
[25] I. N. Sneddon, and B. F. Touschek, “Nuclear Models,” Nature, vol. 161, 1948.
[CrossRef] [Google Scholar] [Publisher Link]
[26] Jean-Philippe Karr, and Dominique Marchand, and Eric Voutier, “The Proton Size,” Nature Reviews Physics, vol. 2, no. 11, pp. 601- 614, 2020.
[CrossRef] [Google Scholar] [Publisher Link]
[27] Randolf Pohl et al., “The Size of The Proton,” Nature, vol. 466, no. 7303, pp. 213-216, 2010.
[CrossRef] [Google Scholar] [Publisher Link]
[28] Carl E. Carlson, “The Proton Radius Puzzle,” Progress in Particle and Nuclear Physics, vol. 82, pp. 59-77, 2015.
[CrossRef] [Google Scholar] [Publisher Link]
[29] Axel Beyer et al., “The Rydberg Constant and Proton Size from Atomic Hydrogen,” Science, vol. 358, no. 6359, pp. 79-85, 2017.
[CrossRef] [Google Scholar] [Publisher Link]
[30] Gao Haiyan, and Marc Vanderhaeghen, “The Proton Charge Radius,” Reviews of Modern Physics, vol. 94, no. 1, 2022.
[CrossRef] [Google Scholar] [Publisher Link]
[31] Richard J. Hill, “Review of Experimental and Theoretical Status of the Proton Radius Puzzle,” EPJ Web of Conferences, vol. 137, 2017.
[CrossRef] [Google Scholar] [Publisher Link]
[32] Aldo Antognini et al., “Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen,” Science, vol. 339, no. 6118, pp. 417-420, 2013.
[CrossRef] [Google Scholar] [Publisher Link]
[33] R. L. Workman et al., “Review of Particle Physics,” Progress of Theoretical and Experimental Physics, vol. 2022, no. 8, 2022.
[CrossRef] [Google Scholar] [Publisher Link]
[34] Dalibor Djukanovic et al., “Precision Calculation of the Electromagnetic Radii of the Proton and Neutron from Lattice QCD,” Physical Review Letters, vol. 132, no. 21, pp. 1-8, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[35] K. Hagiwara et al., “Review of Particle Properties,” Physical Review D, vol. 66, no. 1, 2002. [CrossRef] [Google Scholar] [Publisher Link] [36] Juerg Beringer et al., “Review of Particle Physics,” Physical Review D, vol. 86, no. 1, 2012.
[CrossRef] [Google Scholar] [Publisher Link]
[36] Juerg Beringer et al., “Review of Particle Physics,” Physical Review D, vol. 86, no. 1, 2012.
[CrossRef] [Google Scholar] [Publisher Link]
[37] Keith A. Olive, “Review of Particle Physics,” Chinese Physics C, vol. 38, no. 9, 2014.
[CrossRef] [Google Scholar] [Publisher Link]
[38] Claudia Patrignani et al., “Review of Particle Physics,” Chinese Physics C, vol. 40, no. 10, 2016.
[CrossRef] [Google Scholar] [Publisher Link]
[39] Piotr A.Zyla et al., “Review of Particle Physics,” Progress of Theoretical and Experimental Physics, vol. 2020, no. 8, 2020.
[CrossRef] [Google Scholar] [Publisher Link]
[40] Edward Jiménez, Nicolás Recalde, and Esteban Jiménez Chacón, “Extraction of the Proton and Electron Radii from Characteristic Atomic Lines and Entropy Principles,” Entropy, vol. 19, no. 7, pp. 1-22, 2017.
[CrossRef] [Google Scholar] [Publisher Link]
[41] Hans Dehmelt, “A Single Atomic Particle Forever Floating at Rest in Free Space: New Value for Electron Radius,” Physica Scripta, vol. 1998, 1988.
[CrossRef] [Google Scholar] [Publisher Link]
[42] Riccardo C. Storti, and Todd J. Desiato, “Derivation of Fundamental Particle Radii: Electron, Proton, and Neutron,” Physics Essays, vol. 22, no. 1, pp. 27-32, 2009.
[CrossRef] [Google Scholar] [Publisher Link]
[43] Arthur H. Compton, “The Size and Shape of the Electron,” Physical Review Journals Archive, vol. 14, no. 1, 1919.
[CrossRef] [Google Scholar] [Publisher Link]
[44] Kirsten Sachs, Experimental Determination of the Size of the Electron, pp. 1-59, 1992.
[Google Scholar] [Publisher Link]
[45] G. Rosen, “Is There a Mass/Radius Symmetry Between the Electron and Proton?,” Lettere al Nuovo Cimento, vol. 34, no. 14, pp. 446- 448, 1982.
[CrossRef] [Google Scholar] [Publisher Link]
[46] James Clerk Maxwell, A Treatise on Electricity and Magnetism, Clarendon Press, vol. 2, pp. 1-459, 1873.
[Google Scholar] [Publisher Link]
[47] Gregory Breit, “An Interpretation of Dirac’s Theory of the Electron,” Proceedings of the National Academy of Sciences of U.S.A., vol. 14, no. 7, pp. 553-559, 1928.
[CrossRef] [Google Scholar] [Publisher Link]
[48] E. Schrödinger, “On force-free motion in relativistic quantum mechanics, ” Sitzungsberichte der Preußischen Akademie der Wissenschaften. Physikalisch-Mathematische Klasse, vol. 24, 418-428, 1930.
[Google Scholar] [Publisher Link]