Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/78789
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Type: | Journal article |
Title: | Imaging dynamical chiral-symmetry breaking: pion wave function on the light front |
Author: | Chang, L. Cloet, I. Cobos-Martinez, J. Roberts, C. Schmidt, S. Tandy, P. |
Citation: | Physical Review Letters, 2013; 110(13):132001-1-132001-5 |
Publisher: | American Physical Society |
Issue Date: | 2013 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | Lei Chang, I. C. Cloët, J. J. Cobos-Martinez, C. D. Roberts, S. M. Schmidt, and P. C. Tandy |
Abstract: | We project onto the light front the pion's Poincaré-covariant Bethe-Salpeter wave function obtained using two different approximations to the kernels of quantum chromodynamics' Dyson-Schwinger equations. At an hadronic scale, both computed results are concave and significantly broader than the asymptotic distribution amplitude, φ(π)(asy)(x)=6x(1-x); e.g., the integral of φ(π)(x)/φ(π)(asy)(x) is 1.8 using the simplest kernel and 1.5 with the more sophisticated kernel. Independent of the kernels, the emergent phenomenon of dynamical chiral-symmetry breaking is responsible for hardening the amplitude. |
Rights: | © 2013 American Physical Society |
DOI: | 10.1103/PhysRevLett.110.132001 |
Grant ID: | http://purl.org/au-research/grants/arc/FL0992247 |
Published version: | http://dx.doi.org/10.1103/physrevlett.110.132001 |
Appears in Collections: | Aurora harvest 2 Chemistry and Physics publications |
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hdl_78789.pdf | Published version | 211.84 kB | Adobe PDF | View/Open |
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