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Title: Impact of an extra gauge interaction on naturalness of supersymmetry

Abstract

It is pointed out that in supersymmetric models with a new gauge symmetry under which the Higgs is charged, the fine-tuning of the electroweak symmetry breaking is relaxed due to suppression of the top Yukawa coupling at higher scales by a new large gauge coupling. Here, we calculate the fine-tuning in an explicit model and find that the lower bounds on stops and gluino masses from the naturalness criterion are increased by several hundred GeV in comparison to the Minimal Supersymmetric Standard Model (MSSM). The fine-tuning is improved by one to two orders of magnitude as compared to the MSSM, as a consequence of both the suppression of the top Yukawa coupling and the additional tree-level contribution to the Higgs mass allowing for much lighter stops.

Authors:
 [1];  [2]
  1. Univ. of Warsaw (Poland). Inst. of theoretical Physics
  2. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Theoretical Physics Group
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF)
OSTI Identifier:
1493670
Grant/Contract Number:  
AC02-05CH11231; PHY-1316783
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 8; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Supersymmetric Standard Model

Citation Formats

Badziak, Marcin, and Harigaya, Keisuke. Impact of an extra gauge interaction on naturalness of supersymmetry. United States: N. p., 2018. Web. doi:10.1007/JHEP08(2018)080.
Badziak, Marcin, & Harigaya, Keisuke. Impact of an extra gauge interaction on naturalness of supersymmetry. United States. doi:10.1007/JHEP08(2018)080.
Badziak, Marcin, and Harigaya, Keisuke. Tue . "Impact of an extra gauge interaction on naturalness of supersymmetry". United States. doi:10.1007/JHEP08(2018)080. https://www.osti.gov/servlets/purl/1493670.
@article{osti_1493670,
title = {Impact of an extra gauge interaction on naturalness of supersymmetry},
author = {Badziak, Marcin and Harigaya, Keisuke},
abstractNote = {It is pointed out that in supersymmetric models with a new gauge symmetry under which the Higgs is charged, the fine-tuning of the electroweak symmetry breaking is relaxed due to suppression of the top Yukawa coupling at higher scales by a new large gauge coupling. Here, we calculate the fine-tuning in an explicit model and find that the lower bounds on stops and gluino masses from the naturalness criterion are increased by several hundred GeV in comparison to the Minimal Supersymmetric Standard Model (MSSM). The fine-tuning is improved by one to two orders of magnitude as compared to the MSSM, as a consequence of both the suppression of the top Yukawa coupling and the additional tree-level contribution to the Higgs mass allowing for much lighter stops.},
doi = {10.1007/JHEP08(2018)080},
journal = {Journal of High Energy Physics (Online)},
number = 8,
volume = 2018,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Table 1 Table 1: The matter content of the model.

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.