Stealth dark matter: Dark scalar baryons through the Higgs portal
- Yale Univ., New Haven, CT (United States)
- Boston Univ., Boston, MA (United States)
- Institute for Nuclear Theory, Seattle, WA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Univ. of California, Davis, CA (United States)
- Univ. of Oregon, Eugene, OR (United States)
- Univ. of Colorado, Boulder, CO (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Syracuse Univ., Syracuse, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
We present a new model of "Stealth Dark Matter": a composite baryonic scalar of an SU(ND) strongly coupled theory with even ND ≥ 4. All mass scales are technically natural, and dark matter stability is automatic without imposing an additional discrete or global symmetry. Constituent fermions transform in vectorlike representations of the electroweak group that permit both electroweak-breaking and electroweak-preserving mass terms. This gives a tunable coupling of stealth dark matter to the Higgs boson independent of the dark matter mass itself. We specialize to SU(4), and investigate the constraints on the model from dark meson decay, electroweak precision measurements, basic collider limits, and spin-independent direct detection scattering through Higgs exchange. We exploit our earlier lattice simulations that determined the composite spectrum as well as the effective Higgs coupling of stealth dark matter in order to place bounds from direct detection, excluding constituent fermions with dominantly electroweak-breaking masses. A lower bound on the dark baryon mass mB ≳ 300 GeV is obtained from the indirect requirement that the lightest dark meson not be observable at LEP II. Furthermore, we briefly survey some intriguing properties of stealth dark matter that are worthy of future study, including collider studies of dark meson production and decay; indirect detection signals from annihilation; relic abundance estimates for both symmetric and asymmetric mechanisms; and direct detection through electromagnetic polarizability, a detailed study of which will appear in a companion paper.
- Research Organization:
- Univ. of Oregon, Eugene, OR (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- Lattice Strong Dynamics (LSD) Collaboration
- Grant/Contract Number:
- SC0011640; SC0008669; SC0009998; SC0010025; FG02-92ER40704; FG02-00ER41132; AC52-07NA27344; AC02-06CH11357; SC0012704; AC02-05CH11231
- OSTI ID:
- 1601480
- Alternate ID(s):
- OSTI ID: 1224653; OSTI ID: 1244664
- Report Number(s):
- LLNL-JRNL-667446; PRVDAQ; TRN: US2103666
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 92, Issue 7; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Direct signals from electroweak singlets through the Higgs portal
|
journal | December 2018 |
Hadronic and Hadron-Like Physics of Dark Matter
|
journal | April 2019 |
Gravitational Waves From a Dark (Twin) Phase Transition | text | January 2015 |
Dynamical Dark Matter from Strongly-Coupled Dark Sectors | text | January 2016 |
Direct signals from electroweak singlets through the Higgs portal | text | January 2018 |
Dark Quark Nuggets | text | January 2018 |
Hadronic and hadron-like physics of Dark Matter | text | January 2019 |
Baryon-Dark Matter Coincidence in Mirrored Unification | text | January 2019 |
Similar Records
Stealth dark matter spectrum using LapH and Irreps
Stealth dark matter confinement transition and gravitational waves