Embracing the work of Robert L. Jaffe of MIT

Source documents: Robert L. Jaffe (this page); https://81018.com/spin/

Robert L. Jaffe focuses on the physics of elementary particles and quantum field theory, especially the dynamics of quark confinement and hadron structure, the Standard Model, and the quantum structure of the vacuum. We discovered his work because of his article:
Where Does the Proton Really Get Its Spin?, Robert L. Jaffe, Physics Today 48 (9), 24–30 (1995); https://doi.org/10.1063/1.881473

Relatively simple QCD Lagrangian

“…hadron spectra and interactions show tantalizing regularities beyond those expected on the basis of symmetries alone. Tempted by these patterns, theorists have tried again and again to develop a quantitative understanding of the hadron as a bound state of quarks in QCD.”

Conclusion: “Theorists, however, are still playing catch-up, hoping to build a more robust and sophisticated model of nucleon substructure that can predict the rich array of spin phenomena now accessible to
experiment.”

Robert L. Jaffe formulated the first consistent description of quark confinement, the “MIT Bag Model.” See: A New Extended Model of Hadrons, A. Chodos, R. Jaffe, Kenneth Johnson, Charles Thorn,  V. Weisskopf, Physical Review D 9, 3471, 15 June 1974

Homepage(s): ArXiv, iNspireHEP, MIT, Wikipedia

First email: 27 November 2023

Dear Prof. Dr. Robert Jaffe, 

  1. I am not finding any references to the relation between you, Arthur and Andrew Jaffe (Imperial and Edinburgh). Is there any relation?  If so, I would like to lift the mystery by expanding this reference here: https://81018.com/jaffe/
  2. Thank you for your 1995 article, Where Does the Proton Really Get Its Spin?, Robert L. Jaffe, Physics Today 48 (9), 24–30 (1995); https://doi.org/10.1063/1.881473  I also touching down on some of your other articles — ArXiv, iNspireHEP, MIT, Wikipedia — to discern a natural sequel. Your colleague Frank Wilczek has had a focus on Planck’s base units. Do you think those units have any relevance to your work, especially the more recent work, Ambiguities in the definition of local spatial densities in light hadrons, ArXiv, 2020? https://arxiv.org/pdf/2010.15887.pdf 

Thank you.

Warm regards,

Bruce

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