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https://hdl.handle.net/2440/87477
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Type: | Journal article |
Title: | Equivalence of pion loops in equal-time and light-front dynamics |
Author: | Ji, C. Melnitchouk, W. Thomas, A. |
Citation: | Physical Review D: Particles, Fields, Gravitation and Cosmology, 2009; 80(5):054018-1-054018-11 |
Publisher: | American Physical Society |
Issue Date: | 2009 |
ISSN: | 1550-7998 1550-2368 |
Statement of Responsibility: | Chueng-Ryong Ji, W. Melnitchouk, A. W. Thomas |
Abstract: | We demonstrate the equivalence of the light-front and equal-time formulations of pionic corrections to nucleon properties. As a specific example, we consider the self-energy Σ of a nucleon dressed by pion loops, for both pseudovector and pseudoscalar πNN couplings. We derive the leading and next-to-leading nonanalytic behavior of Σ on the light front, and show explicitly their equivalence in the rest frame and infinite momentum frame in equal-time quantization, as well as in a manifestly covariant formulation. |
Rights: | © 2009 The American Physical Society |
DOI: | 10.1103/PhysRevD.80.054018 |
Published version: | http://dx.doi.org/10.1103/physrevd.80.054018 |
Appears in Collections: | Aurora harvest 7 Chemistry and Physics publications |
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