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Zeitschrift für Naturforschung A

A Journal of Physical Sciences

Editor-in-Chief: Holthaus, Martin

Editorial Board: Fetecau, Corina / Kiefer, Claus


IMPACT FACTOR 2016: 1.432

CiteScore 2017: 1.30

SCImago Journal Rank (SJR) 2017: 0.403
Source Normalized Impact per Paper (SNIP) 2017: 0.632

Online
ISSN
1865-7109
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Volume 52, Issue 1-2

Issues

A Brief Introduction to the Strong CP Problem

Dan-di Wu
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/zna-1997-1-245

Abstract

The present status of the strong CP problem is briefly reviewed in a heuristic way. A crisis in EDMN calculation is explained. The equation of vacuum alignment obtained by the author and collaborators last year put a constraint on strong CP parameters. Thus the strong CP will be forced to vanish in one of the three scenarios characterized respectively by axion, zero quark mass and vanishing quark condensate.

About the article

Published Online: 2014-06-02

Published in Print: 1997-02-01


Citation Information: Zeitschrift für Naturforschung A, Volume 52, Issue 1-2, Pages 179–182, ISSN (Online) 1865-7109, ISSN (Print) 0932-0784, DOI: https://doi.org/10.1515/zna-1997-1-245.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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