Higgs portals for thermal Dark Matter. EFT perspectives and the NMSSM
- Stockholm Univ. (Sweden)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)
- Wayne State Univ., Detroit, MI (United States)
- Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP); Argonne National Lab. (ANL), Argonne, IL (United States)
We analyze a low energy effective model of Dark Matter in which the thermalrelic density is provided by a singlet Majorana fermion which interacts with the Higgs fieldsvia higher dimensional operators. Direct detection signatures may be reduced if blind spotsolutions exist, which naturally appear in models with extended Higgs sectors. Explicitmass terms for the Majorana fermion can be forbidden by aZ3symmetry, which in addi-tion leads to a reduction of the number of higher dimensional operators. Moreover, a weakscale mass for the Majorana fermion is naturally obtained from the vacuum expectationvalue of a scalar singlet field. The proper relic density may be obtained by thes-channelinterchange of Higgs and gauge bosons, with the longitudinal mode of theZboson (theneutral Goldstone mode) playing a relevant role in the annihilation process. This modelshares many properties with the Next-to-Minimal Supersymmetric extension of the Stan-dard Model (NMSSM) with light singlinos and heavy scalar and gauge superpartners. Inorder to test the validity of the low energy effective field theory, we compare its predictionswith those of the ultraviolet complete NMSSM. Extending our framework to includeZ3neutral Majorana fermions, analogous to the bino in the NMSSM, we find the appearanceof a new bino-singlino well tempered Dark Matter region
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
- Grant/Contract Number:
- AC02-07CH11359; FG02-13ER41958; AC02-06CH11357; PHY-1607611; SC0009924
- OSTI ID:
- 1431572
- Alternate ID(s):
- OSTI ID: 1594034
- Report Number(s):
- NORDITA-2017-130; FERMILAB-PUB-17-611-T; EFI-17-25; WSU-HEP-1715; arXiv:1712.09873; 1645196; TRN: US1802366
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2018, Issue 4; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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