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Title: Higgs and superparticle mass predictions from the landscape

Abstract

Predictions for the scale of SUSY breaking from the string landscape go back at least a decade to the work of Denef and Douglas on the statistics of flux vacua. The assumption that an assortment of SUSY breaking F and D terms are present in the hidden sector, and their values are uniformly distributed in the landscape of D = 4, N = 1 effective supergravity models, leads to the expectation that the landscape pulls towards large values of soft terms favored by a power law behavior P(msoft)~m$$n\atop{soft}$$. On the other hand, similar to Weinberg’s prediction of the cosmological constant, one can assume an anthropic selection of weak scales not too far from the measured value characterized by mW,Z,h ~ 100 GeV. Working within a fertile patch of gravity-mediated low energy effective theories where the superpotential μ term is << m3/2, as occurs in models such as radiative breaking of Peccei-Quinn symmetry, this biases statistical distributions on the landscape by a cutoff on the parameter ΔEW, which measures fine-tuning in the mZ-μ mass relation. The combined effect of statistical and anthropic pulls turns out to favor low energy phenomenology that is more or less agnostic to UV physics. While a uniform selection n = 0 of soft terms produces too low a value for mh, taking n = 1 and 2 produce most probabilistically mh~125 GeV for negative trilinear terms. For n ≥ 1, there is a pull towards split generations with m$$\sim\atop{q}$$,$$\sim\atop{ℓ}$$(1,2)~10-30 TeV whilst m$$\sim\atop{t}$$1 ~1-2 TeV. The most probable gluino mass comes in at ~ 3 - 4 TeV — apparently beyond the reach of HL-LHC (although the required quasi-degenerate higgsinos should still be within reach). We comment on consequences for SUSY collider and dark matter searches.

Authors:
ORCiD logo [1];  [2];  [3];  [1]
  1. Univ. of Oklahoma, Norman, OK (United States)
  2. Univ. of Wisconsin, Madison, WI (United States)
  3. University of Central Oklahoma, Edmund, OK (United States)
Publication Date:
Research Org.:
Univ. of Oklahoma, Norman, OK (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1777466
Report Number(s):
arXiv:1712.01399
Journal ID: ISSN 1029-8479; TRN: US2209465
Grant/Contract Number:  
SC0009956
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: 3; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; supersymmetry phenomenology; Strings and branes phenomenology

Citation Formats

Baer, Howard A, Barger, Vernon, Serce, Hasan, and Sinha, Kuver. Higgs and superparticle mass predictions from the landscape. United States: N. p., 2018. Web. doi:10.1007/jhep03(2018)002.
Baer, Howard A, Barger, Vernon, Serce, Hasan, & Sinha, Kuver. Higgs and superparticle mass predictions from the landscape. United States. https://doi.org/10.1007/jhep03(2018)002
Baer, Howard A, Barger, Vernon, Serce, Hasan, and Sinha, Kuver. Mon . "Higgs and superparticle mass predictions from the landscape". United States. https://doi.org/10.1007/jhep03(2018)002. https://www.osti.gov/servlets/purl/1777466.
@article{osti_1777466,
title = {Higgs and superparticle mass predictions from the landscape},
author = {Baer, Howard A and Barger, Vernon and Serce, Hasan and Sinha, Kuver},
abstractNote = {Predictions for the scale of SUSY breaking from the string landscape go back at least a decade to the work of Denef and Douglas on the statistics of flux vacua. The assumption that an assortment of SUSY breaking F and D terms are present in the hidden sector, and their values are uniformly distributed in the landscape of D = 4, N = 1 effective supergravity models, leads to the expectation that the landscape pulls towards large values of soft terms favored by a power law behavior P(msoft)~m$n\atop{soft}$. On the other hand, similar to Weinberg’s prediction of the cosmological constant, one can assume an anthropic selection of weak scales not too far from the measured value characterized by mW,Z,h ~ 100 GeV. Working within a fertile patch of gravity-mediated low energy effective theories where the superpotential μ term is << m3/2, as occurs in models such as radiative breaking of Peccei-Quinn symmetry, this biases statistical distributions on the landscape by a cutoff on the parameter ΔEW, which measures fine-tuning in the mZ-μ mass relation. The combined effect of statistical and anthropic pulls turns out to favor low energy phenomenology that is more or less agnostic to UV physics. While a uniform selection n = 0 of soft terms produces too low a value for mh, taking n = 1 and 2 produce most probabilistically mh~125 GeV for negative trilinear terms. For n ≥ 1, there is a pull towards split generations with m$\sim\atop{q}$,$\sim\atop{ℓ}$(1,2)~10-30 TeV whilst m$\sim\atop{t}$1 ~1-2 TeV. The most probable gluino mass comes in at ~ 3 - 4 TeV — apparently beyond the reach of HL-LHC (although the required quasi-degenerate higgsinos should still be within reach). We comment on consequences for SUSY collider and dark matter searches.},
doi = {10.1007/jhep03(2018)002},
journal = {Journal of High Energy Physics (Online)},
number = 3,
volume = 2018,
place = {United States},
year = {Mon Mar 05 00:00:00 EST 2018},
month = {Mon Mar 05 00:00:00 EST 2018}
}

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