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</o:shapelayout></xml><![endif]--></head><body lang=ES link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dear Richard and all,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Concerning the idea of an elementary particle with two separate centers, the center of mass and the center of charge, I suggest the reading of the Preamble of my lecture notes<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="https://www.researchgate.net/publication/299636714_Kinematical_Theory_of_Elementary_Spinning_Particles_Lecture_Notes">https://www.researchgate.net/publication/299636714_Kinematical_Theory_of_Elementary_Spinning_Particles_Lecture_Notes</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>where we give different kinds of arguments leading to this possibility. It is important for this possibility the spin dynamical analysis of a particle with two centers. The main conclusion is that a particle with two centers, the center of charge has to be moving at the speed of light and therefore the angular momentum is not quantized. It just has to have a unique value.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Best regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Martin Rivas<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Theoretical Physics Department<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>University of the Basque Country<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bilbao, Spain<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>url:tp.lc.ehu.es/martin.htm<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>https://www.researchgate.net/profile/Martin_Rivas3<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>e-mail: martin.rivas@ehu.eus<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Postal Add: Apdo 644, 48080 Bilbao, Spain<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Richard Gauthier [mailto:richgauthier@gmail.com] <br><b>Enviado el:</b> jueves, 21 de septiembre de 2017 5:17<br><b>Para:</b> Nature of Light and Particles - General Discussion<br><b>CC:</b> Andrew Meulenberg; Jean-Luc Paillet; David Hestenes; Martin Rivas<br><b>Asunto:</b> Re: [General] A composite electron?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hello Andrew and all,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal> I communicated with David Hestenes three years ago about his zitter electron model, and about the fact that his helical zitter electron model (with helical radius hbar/2mc = Lcompton/4pi gives only a half Bohr Magneton in the classical calculation of magnetic moment. He replied:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>"You have given the standard classical calculation, which is off by a factor of 2. But note that classical physics assumes a constant charge to mass ratio. The zitter model requires separation of the center of charge from the center of mass, as discussed, for example, by Rivas <a href="http://arxiv.org/abs/1211.3253">http://arxiv.org/abs/1211.3253</a> "<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have also communicated with Martin Rivas about his separation-of-mass-and-charge electron model. I am copying this e-mail to both of them. Their comments are welcome.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal> Richard<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>On Sep 20, 2017, at 2:45 PM, Andrew Meulenberg <<a href="mailto:mules333@gmail.com">mules333@gmail.com</a>> wrote:<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Dear Richard and Albrecht,<o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'>Richard has expressed doubts about Albrecht's 2-body electron and Albrecht probably has reservations about Richard's charged photons.<br><br>I just read a paper ("The dynamical equation of the spinning electron," J. Phys. A, 36, 4703, (2003), and also LANL ArXiv:physis/0112005, along.with some background papers) that Richard has referenced in his: The Dirac Equation and the Superluminal Electron Model (<a href="https://richardgauthier.academia.edu/research#papers">https://richardgauthier.academia.edu/research#papers</a>). I found a concept with which I was previously unfamiliar: the centers of mass and charge being different. If this interesting concept is valid; then it might be possible that the two centers are the 'objects' that Albrecht has proposed for his composite electron. It might also apply to the charged photon.<o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'>Has anyone any comments on this concept (or n the author of the paper: Martin Rivas)?<o:p></o:p></p></div><p class=MsoNormal>Andrew M<o:p></o:p></p><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br><br><br><br><o:p></o:p></p></div></div></div><p class=MsoNormal>_______________________________________________<br>If you no longer wish to receive communication from the Nature of Light and Particles General Discussion List at <a href="mailto:richgauthier@gmail.com">richgauthier@gmail.com</a><br><a href="<a href="http://lists.natureoflightandparticles.org/options.cgi/general-natureoflightandparticles.org/richgauthier%40gmail.com?unsub=1&unsubconfirm=1">http://lists.natureoflightandparticles.org/options.cgi/general-natureoflightandparticles.org/richgauthier%40gmail.com?unsub=1&unsubconfirm=1</a>"><br>Click here to unsubscribe<br></a><o:p></o:p></p></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>