pith:ISOMYT7N
WIMP Meets ALP: Coherent Freeze-Out of Dark Matter
A quadratic coupling between WIMPs and a light ALP induces temperature-dependent mass shifts that delay freeze-out and produce an ALP relic largely independent of initial conditions.
arxiv:2511.16731 v2 · 2025-11-20 · hep-ph · astro-ph.CO
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ISOMYT7NFKHIOPSKB3SIBAWT7X}
Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge
Record completeness
Claims
In the FOPT regime, dark matter consists solely of WIMPs, whose delayed freeze-out permits annihilation cross sections up to three orders of magnitude above the standard value, while still yielding the correct relic density. In the crossover regime, both WIMP and ALP can contribute to dark matter. Remarkably, we find an 'ALP miracle': a Planck-suppressed quadratic coupling yields an ALP abundance comparable to the observed dark matter density, largely independent of its initial displacement and mass.
The quadratic coupling is too feeble to thermalize the ALP yet strong enough for coherent forward scattering to produce substantial temperature-dependent mass shifts that alter both WIMP freeze-out timing and ALP vacuum displacement.
Quadratic WIMP-ALP coupling induces coherent freeze-out that allows WIMP annihilation cross sections up to 1000 times larger than standard while matching relic density, plus an ALP miracle where Planck-suppressed couplings naturally yield correct ALP dark matter abundance independent of initial mass
References
Formal links
Receipt and verification
| First computed | 2026-05-22T01:03:50.760070Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
449ccc4fed2a8e873e4a0ee48082d3fdcbf96f97457fe8051d362009c9d25cde
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ISOMYT7NFKHIOPSKB3SIBAWT7X \
| jq -c '.canonical_record' \
| python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 449ccc4fed2a8e873e4a0ee48082d3fdcbf96f97457fe8051d362009c9d25cde
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "3efd0762a915883438dc88220122be3937f51c7a5310c14ea2a5144cb1c86d90",
"cross_cats_sorted": [
"astro-ph.CO"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "hep-ph",
"submitted_at": "2025-11-20T19:00:01Z",
"title_canon_sha256": "321dd5dad2bda5a720bc671d129d8ccea22cca1311ee1ae866ff5f6677c90ad1"
},
"schema_version": "1.0",
"source": {
"id": "2511.16731",
"kind": "arxiv",
"version": 2
}
}