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Title: Bino variations: Effective field theory methods for dark matter direct detection

Journal Article · · Physical Review D
 [1];  [2];  [3];  [3]
  1. Univ. of Chicago, IL (United States). Enrico Fermi Inst., Dept. of Physics
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Theoretical Physics Group; Univ. of California, Berkeley, CA (United States). Berkeley Center for Theoretical Physics; Univ. de Sao, Sao Paulo (Brazil). Inst. de Fisica
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Theoretical Physics Group; Univ. of California, Berkeley, CA (United States). Berkeley Center for Theoretical Physics

We apply effective field theory methods to compute bino-nucleon scattering, in the case where tree-level interactions are suppressed and the leading contribution is at loop order via heavy flavor squarks or sleptons. We find that leading log corrections to fixed-order calculations can increase the bino mass reach of direct detection experiments by a factor of 2 in some models. These effects are particularly large for the bino-sbottom coannihilation region, where bino dark matter as heavy as 5–10 TeV may be detected by near future experiments. For the case of stop- and selectron-loop mediated scattering, an experiment reaching the neutrino background will probe thermal binos as heavy as 500 and 300 GeV, respectively. We present three key examples that illustrate in detail the framework for determining weak scale coefficients, and for mapping onto a low-energy theory at hadronic scales, through a sequence of effective theories and renormalization group evolution. For the case of a squark degenerate with the bino, we extend the framework to include a squark degree of freedom at low energies using heavy particle effective theory, thus accounting for large logarithms through a “heavy-light current.” Finally, benchmark predictions for scattering cross sections are evaluated, including complete leading order matching onto quark and gluon operators, and a systematic treatment of perturbative and hadronic uncertainties.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1430670
Alternate ID(s):
OSTI ID: 1252353
Journal Information:
Physical Review D, Vol. 93, Issue 9; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (9)

Chiral effective theory of dark matter direct detection journal February 2017
Complete Lorentz-to-Galileo dictionary for direct dark matter detection journal December 2018
Global fits of GUT-scale SUSY models with GAMBIT journal December 2017
A global fit of the MSSM with GAMBIT journal December 2017
Global fits of GUT-scale SUSY models with GAMBIT text January 2017
A global fit of the MSSM with GAMBIT text January 2017
SUSY-QCD corrections for the direct detection of neutralino dark matter and correlations with the relic density text January 2016
A global fit of the MSSM with GAMBIT text January 2017
Global fits of GUT-scale SUSY models with GAMBIT text January 2017

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