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Title: Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets

Abstract

The LUX experiment has recently set very strong constraints on spin-independent interactions of WIMP with nuclei. These null results can be accommodated in NMSSM provided that the effective spin-independent coupling of the LSP to nucleons is suppressed. Here, we investigate thermal relic abundance of singlino-higgsino LSP in these so-called spin-independent blind spots and derive current constraints and prospects for direct detection of spin-dependent interactions of the LSP with nuclei providing strong constraints on parameter space. We show that if the Higgs boson is the only light scalar the new LUX constraints set a lower bound on the LSP mass of about 300 GeV except for a small range around the half of Z 0 boson masses where resonant annihilation via Z 0 exchange dominates. XENON1T will probe entire range of LSP masses except for a tiny Z 0-resonant region that may be tested by the LZ experiment. These conclusions apply to general singlet-doublet dark matter annihilating dominantly to $$t\bar{t}$$. Presence of light singlet (pseudo)scalars generically relaxes the constraints because new LSP (resonant and non-resonant) annihilation channels become important. Even away from resonant regions, the lower limit on the LSP mass from LUX is relaxed to about 250 GeV while XENON1T may not be sensitive to the LSP masses above about 400 GeV.

Authors:
 [1];  [2];  [2]
  1. Univ. of Warsaw (Poland). Inst. of Theoretical Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Berkeley Center for Theoretical Physics, Dept. of Physics
  2. Univ. of Warsaw (Poland). Inst. of Theoretical Physics
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF); National Science Centre, Poland
OSTI Identifier:
1418299
Grant/Contract Number:  
AC02-05CH11231; PHY-1316783; DEC-2014/15/B/ST2/02157; DEC-2015/18/M/ST2/00054; DEC- 2012/04/A/ST2/00099; DEC-2015/19/N/ST2/01697
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: 2017; Journal Issue: 7; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Supersymmetry Phenomenology

Citation Formats

Badziak, Marcin, Olechowski, Marek, and Szczerbiak, Paweł. Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets. United States: N. p., 2017. Web. doi:10.1007/JHEP07(2017)050.
Badziak, Marcin, Olechowski, Marek, & Szczerbiak, Paweł. Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets. United States. doi:10.1007/JHEP07(2017)050.
Badziak, Marcin, Olechowski, Marek, and Szczerbiak, Paweł. Tue . "Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets". United States. doi:10.1007/JHEP07(2017)050. https://www.osti.gov/servlets/purl/1418299.
@article{osti_1418299,
title = {Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets},
author = {Badziak, Marcin and Olechowski, Marek and Szczerbiak, Paweł},
abstractNote = {The LUX experiment has recently set very strong constraints on spin-independent interactions of WIMP with nuclei. These null results can be accommodated in NMSSM provided that the effective spin-independent coupling of the LSP to nucleons is suppressed. Here, we investigate thermal relic abundance of singlino-higgsino LSP in these so-called spin-independent blind spots and derive current constraints and prospects for direct detection of spin-dependent interactions of the LSP with nuclei providing strong constraints on parameter space. We show that if the Higgs boson is the only light scalar the new LUX constraints set a lower bound on the LSP mass of about 300 GeV except for a small range around the half of Z 0 boson masses where resonant annihilation via Z 0 exchange dominates. XENON1T will probe entire range of LSP masses except for a tiny Z 0-resonant region that may be tested by the LZ experiment. These conclusions apply to general singlet-doublet dark matter annihilating dominantly to $t\bar{t}$. Presence of light singlet (pseudo)scalars generically relaxes the constraints because new LSP (resonant and non-resonant) annihilation channels become important. Even away from resonant regions, the lower limit on the LSP mass from LUX is relaxed to about 250 GeV while XENON1T may not be sensitive to the LSP masses above about 400 GeV.},
doi = {10.1007/JHEP07(2017)050},
journal = {Journal of High Energy Physics (Online)},
number = 7,
volume = 2017,
place = {United States},
year = {2017},
month = {7}
}

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