Summary
It is shown that a manifestly covariant description of a system of particles can accommodate pairwise scalar interactions without sacrificing the canonical integrity of each particle co-ordinate and its conjugate momentum. The proof requires the introduction of a center-of-mass four-vector co-ordinate. The deduced functional relationship between this center-of-mass proper time and the proper time of each constituent particle yields the expected binding-energy defect for the system rest mass.
Riassunto
Si mostra che una descrizione manifestamente covariante di un sistema di particelle può accogliere interazioni scalari a coppie senza sacrificare l’integrità canonica della coordinata di ciascuna particella e del suo impulso coniugato. La prova richiede l’introduzione di una coordinata del quadrivettore del centro di massa. La relazione funzionale dedotta trail tempo proprio del centro di massa e il tempo proprio di ciascuna particella costituente dà come risultato l’aspettata carenza dell'energia di legame per la massa di quiete del sistema.
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References
P. A. M. Dirac:Rev. Mod. Phys.,21, 392 (1949).
L. L. Foldy:Phys. Rev.,122, 275 (1961);Phys. Rev. D,15, 3044 (1977).
D. G. Currie:Journ. Math. Phys.,4, 1470 (1965);D. G. Currie, T. F. Jordan andE. C. G. Sudarshan:Rev. Mod. Phys.,38, 350 (1963);H. Leutwyler:Nuovo Cimento,37, 556 (1965).
S. Orenstein andK. Rafanelli:The origin of the no-interaction theorem, Queens College preprint (May 1978).
H. van Dam andE. P. Wigner:Phys. Rev.,138, B 1576 (1965);R. N. Hill:Journ. Math. Phys.,8, 201 (1967);L. Bel andJ. Martin:Phys. Rev. D,9, 2760 (1974);H. P. Kunzle:Journ. Math. Phys.,15, 1033 (1974);T. Takabayasi:Prog. Theor. Phys.,58, 1299 (1977).
A. Komar:The constraint formalism of classical mechanics, to be published inPhys. Rev.; Interacting relativistic particles, to be published inPhys. Rev.
F. Rohrlich:Relativistic Hamiltonian dynamics, Syracuse preprint (March 1978).
E. P. Wigner:Ann. Math.,40, 149 (1939);L. H. Thomas:Phys. Rev.,85, 868 (1952);B. Bakamjian andL. H. Thomas:Phys. Rev.,92, 1300 (1953).
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Rafanelli, K., Orenstein, S. An extended particle with interacting constituents. Nuov Cim A 48, 227–234 (1978). https://doi.org/10.1007/BF02799677
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DOI: https://doi.org/10.1007/BF02799677