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Title: Little hierarchy in the minimally specified MSSM

Abstract

Here, we study constrained versions of the minimal supersymmetric model and investigate the hierarchy between the electroweak scale and the scale of superpartners that can be achieved without relying on specifying model parameters by more than one digit (or with better than 10% precision). This approach automatically avoids scenarios in which a large hierarchy is obtained by special choices of parameters and yet keeps scenarios that would otherwise be disfavored by various sensitivity measures. We consider models with universal gaugino and scalar masses, models with nonuniversal Higgs masses or nonuniversal gaugino masses and focus on scenarios in which all the model parameters are either of the same order or zero at the grand unification scale. Lastly, we find that the maximal hierarchy between the electroweak scale and stop masses, requiring that model parameters are not specified beyond one digit, ranges from a factor of ~10–30 for the CMSSM up to ~300 for models with nonuniversal Higgs or gaugino masses.

Authors:
 [1];  [1]
  1. Indiana Univ., Bloomington, IN (United States)
Publication Date:
Research Org.:
Indiana Univ., Bloomington, IN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1597038
Grant/Contract Number:  
[SC0010120]
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Modern Physics A
Additional Journal Information:
[ Journal Volume: 33; Journal Issue: 25]; Journal ID: ISSN 0217-751X
Publisher:
World Scientific
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Supersymmetry phenomenology; electroweak symmetry breaking

Citation Formats

Dermíšek, Radovan, and McGinnis, Navin. Little hierarchy in the minimally specified MSSM. United States: N. p., 2018. Web. doi:10.1142/S0217751X18501452.
Dermíšek, Radovan, & McGinnis, Navin. Little hierarchy in the minimally specified MSSM. United States. doi:10.1142/S0217751X18501452.
Dermíšek, Radovan, and McGinnis, Navin. Wed . "Little hierarchy in the minimally specified MSSM". United States. doi:10.1142/S0217751X18501452. https://www.osti.gov/servlets/purl/1597038.
@article{osti_1597038,
title = {Little hierarchy in the minimally specified MSSM},
author = {Dermíšek, Radovan and McGinnis, Navin},
abstractNote = {Here, we study constrained versions of the minimal supersymmetric model and investigate the hierarchy between the electroweak scale and the scale of superpartners that can be achieved without relying on specifying model parameters by more than one digit (or with better than 10% precision). This approach automatically avoids scenarios in which a large hierarchy is obtained by special choices of parameters and yet keeps scenarios that would otherwise be disfavored by various sensitivity measures. We consider models with universal gaugino and scalar masses, models with nonuniversal Higgs masses or nonuniversal gaugino masses and focus on scenarios in which all the model parameters are either of the same order or zero at the grand unification scale. Lastly, we find that the maximal hierarchy between the electroweak scale and stop masses, requiring that model parameters are not specified beyond one digit, ranges from a factor of ~10–30 for the CMSSM up to ~300 for models with nonuniversal Higgs or gaugino masses.},
doi = {10.1142/S0217751X18501452},
journal = {International Journal of Modern Physics A},
number = [25],
volume = [33],
place = {United States},
year = {2018},
month = {9}
}

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