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Title: Potential NRQED: The positronium case
Author: Pineda, Antonio (Pineda Ruiz)
Soto Riera, Joan
Keywords: Teoria de camps (Física)
Partícules (Física nuclear)
Field theory (Physics)
Particles (Nuclear physics)
Issue Date: 1998
Publisher: The American Physical Society
Abstract: We discuss in detail potential NRQED (pNRQED), a previously proposed effective field theory for ultrasoft photons. The pNRQED lagrangian for the equal mass case is presented and it is shown that it correctly reproduces the positronium spectrum at order $m\alpha^5$. The pNRQED lagrangian for the unequal mass case is also presented at the same order. Dimensional regularization is used throughout.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 1998, vol. 59, núm. 1, p. 016005-1-016005-10
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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