Comparison of SUSY spectra generators for natural SUSY and string landscape predictions

Journal Article · 23 February 2022 · European Physical Journal. C, Particles and Fields

DOI: https://doi.org/10.1140/epjc/s10052-022-10141-2 · OSTI ID:1865362

Baer, Howard  ^[1]; Barger, Vernon ^[2]; Martinez, Dakotah ^[3]

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1. Univ. of Oklahoma, Norman, OK (United States); Univ. of Wisconsin, Madison, WI (United States); University of Oklahoma
2. Univ. of Wisconsin, Madison, WI (United States)
3. Univ. of Oklahoma, Norman, OK (United States)

Models of natural supersymmetry give rise to a weak scale m_weak ~ m_W,Z,h ~ 100 GeV without any (implausible) finetuning of independent contributions to the weak scale. These models, which exhibit radiatively driven naturalness (RNS), are expected to arise from statistical analysis of the string landscape wherein large soft terms are favored, but subject to a not-too-large value of the derived weak scale in each pocket universe of the greater multiverse. The string landscape picture then predicts, using the Isajet SUSY spectra generator Isasugra, a statistical peak at m_h ~ 125 GeV with sparticles generally beyond current LHC search limits. In this paper, we investigate how well these conclusions hold up using other popular spectra generators: SOFTSUSY, SPHENO and SUSPECT (SSS). We built a computer code DEW4SLHA which operates on SUSY Les Houches Accord files to calculate the associated electroweak naturalness measure Δ_EW. The SSS generators tend to yield a Higgs mass peak ~125–127 GeV with a superparticle mass spectra rather similar to that generated by Isasugra. In an Appendix, we include loop corrections to Δ_EW in a more standard notation.

• Research Organization: Univ. of Oklahoma, Norman, OK (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: SC0009956; SC0017647
• OSTI ID: 1865362
• Journal Information: European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 2 Vol. 82; ISSN 1434-6044
• Publisher: SpringerCopyright Statement
• Country of Publication: United States
• Language: English