Challenges for the Nelson-Barr mechanism

Michael Dine; Patrick Draper

doi:10.1007/JHEP08(2015)132

Challenges for the Nelson-Barr mechanism

Research output: Contribution to journal › Article › peer-review

Abstract

Abstract: The axion and m_u = 0 solutions to the strong CP problem have been subject to the most careful scrutiny and critique. Basic theoretical issues include hierarchy and fine-tuning problems, quality and genericity of symmetries, and compatibility with solutions to the electroweak hierarchy problem. We study the similar set of challenges for solutions to strong CP based on spontaneous CP violation and the Nelson-Barr mechanism. Some of our observations have appeared in the literature previously, and others are new; our purpose is to collect and analyze the issues as a whole and provide an assessment of the most plausible settings for the Nelson-Barr solution.

Original language	English (US)
Article number	132
Journal	Journal of High Energy Physics
Volume	2015
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2015)132
State	Published - Aug 7 2015
Externally published	Yes

Keywords

Beyond Standard Model
CP violation
Quark Masses and SM Parameters

ASJC Scopus subject areas

Nuclear and High Energy Physics

Online availability

10.1007/JHEP08(2015)132

Library availability

Discover UIUC Full Text

Cite this

@article{305cede8ecfd4402819b9f574308e306,

title = "Challenges for the Nelson-Barr mechanism",

abstract = "Abstract: The axion and mu = 0 solutions to the strong CP problem have been subject to the most careful scrutiny and critique. Basic theoretical issues include hierarchy and fine-tuning problems, quality and genericity of symmetries, and compatibility with solutions to the electroweak hierarchy problem. We study the similar set of challenges for solutions to strong CP based on spontaneous CP violation and the Nelson-Barr mechanism. Some of our observations have appeared in the literature previously, and others are new; our purpose is to collect and analyze the issues as a whole and provide an assessment of the most plausible settings for the Nelson-Barr solution.",

keywords = "Beyond Standard Model, CP violation, Quark Masses and SM Parameters",

author = "Michael Dine and Patrick Draper",

note = "Publisher Copyright: {\textcopyright} 2015, The Author(s).",

year = "2015",

month = aug,

day = "7",

doi = "10.1007/JHEP08(2015)132",

language = "English (US)",

volume = "2015",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "8",

}

TY - JOUR

T1 - Challenges for the Nelson-Barr mechanism

AU - Dine, Michael

AU - Draper, Patrick

PY - 2015/8/7

Y1 - 2015/8/7

N2 - Abstract: The axion and mu = 0 solutions to the strong CP problem have been subject to the most careful scrutiny and critique. Basic theoretical issues include hierarchy and fine-tuning problems, quality and genericity of symmetries, and compatibility with solutions to the electroweak hierarchy problem. We study the similar set of challenges for solutions to strong CP based on spontaneous CP violation and the Nelson-Barr mechanism. Some of our observations have appeared in the literature previously, and others are new; our purpose is to collect and analyze the issues as a whole and provide an assessment of the most plausible settings for the Nelson-Barr solution.

AB - Abstract: The axion and mu = 0 solutions to the strong CP problem have been subject to the most careful scrutiny and critique. Basic theoretical issues include hierarchy and fine-tuning problems, quality and genericity of symmetries, and compatibility with solutions to the electroweak hierarchy problem. We study the similar set of challenges for solutions to strong CP based on spontaneous CP violation and the Nelson-Barr mechanism. Some of our observations have appeared in the literature previously, and others are new; our purpose is to collect and analyze the issues as a whole and provide an assessment of the most plausible settings for the Nelson-Barr solution.

KW - Beyond Standard Model

KW - CP violation

KW - Quark Masses and SM Parameters

UR - http://www.scopus.com/inward/record.url?scp=84941007992&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84941007992&partnerID=8YFLogxK

U2 - 10.1007/JHEP08(2015)132

DO - 10.1007/JHEP08(2015)132

M3 - Article

AN - SCOPUS:84941007992

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 132

ER -

Challenges for the Nelson-Barr mechanism

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this