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Superconformal flavor simplified

Poland, David and Simmons-Duffin, David (2010) Superconformal flavor simplified. Journal of High Energy Physics, 2010 (5). Art. No. 079. ISSN 1029-8479. https://resolver.caltech.edu/CaltechAUTHORS:20170815-131911295

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Abstract

A simple explanation of the flavor hierarchies can arise if matter fields interact with a conformal sector and different generations have different anomalous dimensions under the CFT. However, in the original study by Nelson and Strassler many supersymmetric models of this type were considered to be ‘incalculable’ because the R-charges were not sufficiently constrained by the superpotential. We point out that nearly all such models are calculable with the use of a-maximization. Utilizing this, we construct the simplest vector-like flavor models and discuss their viability. A significant constraint on these models comes from requiring that the visible gauge couplings remain perturbative throughout the conformal window needed to generate the hierarchies. However, we find that there is a small class of simple flavor models that can evade this bound.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/JHEP05(2010)079DOIArticle
https://arxiv.org/abs/1004.4218arXivDiscussion Paper
ORCID:
AuthorORCID
Poland, David0000-0003-3854-2430
Simmons-Duffin, David0000-0002-2937-9515
Additional Information:© 2010 SISSA, Trieste, Italy. Received: March 5, 2010. Accepted: April 9, 2010. Published: May 21, 2010. We thank Clay Cordova, Nathaniel Craig, Yanou Cui, Ken Intriligator, Andrey Katz, John Mason, David Morrissey, Lisa Randall, Matt Schwartz, and Brian Wecht for helpful comments and conversations. This work is supported in part by the Harvard Center for the Fundamental Laws of Nature and by NSF grant PHY-0556111. DP would like to thank the Galileo Galilei Institute for its hospitality during the completion of this work.
Funders:
Funding AgencyGrant Number
Harvard Center for the Fundamental Laws of NatureUNSPECIFIED
NSFPHY-0556111
Subject Keywords:Supersymmetric gauge theory, Quark Masses and SM Parameters, Renormalization Group
Issue or Number:5
Record Number:CaltechAUTHORS:20170815-131911295
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170815-131911295
Official Citation:Poland, D. & Simmons-Duffin, D. J. High Energ. Phys. (2010) 2010: 79. https://doi.org/10.1007/JHEP05(2010)079
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80422
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:16 Aug 2017 22:48
Last Modified:20 Nov 2020 20:02

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