Preprint/Report

PUBDB-2016-01947

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A bottom-up approach to the strong CP problem

Díaz-Cruz, J. L. ; Hollik, W. (Corresponding author)DESY* ; Saldaña-Salazar, U. J.

2016

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Please use a persistent id in citations: doi:10.3204/PUBDB-2016-01947

Report No.: DESY-16-084; arXiv:1605.03860

Abstract: The strong CP problem is one of many puzzles in the theoretical description of elementary particles physics that still lacks an explanation. Solutions to that problem usually comprise new symmetries or fields or both. The main problem seems to be how to achieve small CP in the strong interactions despite large CP violation in weak interactions. Observation of CP violation is exclusively through the Higgs--Yukawa interactions. In this letter, we show that with minimal assumptions on the structure of mass (Yukawa) matrices the strong CP problem does not exist in the Standard Model and no extension to solve this is needed. However, to solve the flavor puzzle, models based on minimal SU(3) flavor groups leading to the proposed flavor matrices are favored.

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2016

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Report/Journal Article Diaz-Cruz, J. L. ; Hollik, W.DESY* ; Saldana-Salazar, U. J. (Corresponding author)
A bottom-up approach to the strong CP problem
International journal of modern physics / A 33(14n15), 1850088 (2018) [10.1142/S0217751X18500884]2018     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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