Pith Number

pith:6GQTNU2R

pith:2026:6GQTNU2R43JLKSRCBPSRUIFCHI

not attested not anchored not stored refs pending

Irreducible Gravitational Wave Background as a Particle Detector

Angus Spalding, Anish Ghoshal, Graham White

Spectral features in any primordial gravitational wave background directly determine the mass and decay rate of long-lived beyond-Standard-Model particles.

arxiv:2604.20792 v2 · 2026-04-22 · hep-ph · astro-ph.CO

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\usepackage{pith}
\pithnumber{6GQTNU2R43JLKSRCBPSRUIFCHI}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

We show that spectral features of primordial gravitational-wave backgrounds (GWB) can directly reconstruct Lagrangian parameters of beyond-the-Standard-Model (BSM) particles, for any transient gravitational-wave production mechanism, independent of the specific source of gravitational waves.

C2weakest assumption

Sufficiently long-lived particles generically induce a temporary period of early matter domination in the thermal history of the Universe, which imprints two characteristic frequencies in any primordial GWB corresponding to the onset and end of this epoch.

C3one line summary

Spectral features imprinted by long-lived BSM particles on any primordial GWB directly determine the particles' mass and decay rate once the model and initial abundance are specified.

Cited by

2 papers in Pith

Whispers of Supergravity in Gravitational Wave Backgrounds: Determining the Gravitino Mass from Cosmic Thermal History

Imprint of domain wall annihilation on induced gravitational waves

Receipt and verification

First computed	2026-06-09T01:05:17.649544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1a136d351e6d2b54a220be51a20a23a08c3f19bfe7123c2131234544c202d6e

Aliases

arxiv: 2604.20792 · arxiv_version: 2604.20792v2 · doi: 10.48550/arxiv.2604.20792 · pith_short_12: 6GQTNU2R43JL · pith_short_16: 6GQTNU2R43JLKSRC · pith_short_8: 6GQTNU2R

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6GQTNU2R43JLKSRCBPSRUIFCHI \
  | 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: f1a136d351e6d2b54a220be51a20a23a08c3f19bfe7123c2131234544c202d6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "883fc92726732e3f2e5675a577255fdae3d430282bed64266c63bbe2d0369c36",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2026-04-22T17:17:40Z",
    "title_canon_sha256": "fdb7cf8da243b7dcf49280f96da2e1c9e2402cc50c919d3cf0a385e4aa87d487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.20792",
    "kind": "arxiv",
    "version": 2
  }
}