Where to look for natural supersymmetry

被引：11

作者：

AbdusSalam, S. S. ^{[1
,2
]}

Velasco-Sevilla, L. ^{[3
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Roma, Piazzale Aldo Moro 2, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, Dipartmento Fis, Rome, Italy

[3] Univ Bergen, Dept Phys & Technol, POB 7803, N-5020 Bergen, Norway

来源：

PHYSICAL REVIEW D | 2016年 / 94卷 / 03期

基金：

欧洲研究理事会;

关键词：

PROGRAM; EFFICIENT; PHYSICS; SEARCH; MASSES; MSSM; WEAK;

D O I：

10.1103/PhysRevD.94.035026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Why is natural supersymmetry neither detected nor ruled out to date? To answer this question we use the Bayesian approach where the emphasis in finding prior-independent features within broader and minimally biased frames is taken as the guiding principle. The 20-parameter minimal supersymmetric standard model (MSSM) global fits to subjective naturalness indicate the existence of a prior-independent upper bound on the pseudoscalar Higgs boson mass m(A) as a function of tan beta, the ratio of the vacuum expectation values of MSSM Higgs doublets. For a 30-parameter MSSM this implies that m(A) less than or similar to 3 TeV and tan beta less than or similar to 25 at 95% Bayesian confidence. Removing the contradictory subjectiveness within the electroweak fine-tuning measure leads to finding the naturalness line, m(A) similar to 1/root 2 m(Z) tan beta, that reduces by one the number of MSSM Higgs sector free parameters.

引用

页数：9

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