Pith Number

pith:GHGCQA5X

pith:2026:GHGCQA5XFRUNMECGDUKVT4JEDO

not attested not anchored not stored refs resolved

Dark photon searches in the photon channel

A. Betancur, D. Aristizabal Sierra, J. Velez, K. Pohl

Spectral shape differences in photons from neutral pion decays can probe new regions of dark photon parameter space for invisible decay models.

arxiv:2605.13696 v1 · 2026-05-13 · hep-ph · hep-ex · nucl-ex

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\usepackage{pith}
\pithnumber{GHGCQA5XFRUNMECGDUKVT4JEDO}

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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

Our results demonstrate that multiple campaign runs with a 10-50 μA beam could probe previously unexplored regions of parameter space in models where the dark photon has predominantly invisible decays.

C2weakest assumption

The GEANT4 model accurately captures photon production, detection efficiencies, and all relevant backgrounds for the chosen foil thickness, separation, and beam energy without significant unmodeled systematics.

C3one line summary

GEANT4 simulations indicate that photon spectral shape differences from pion decays in a tungsten foil setup could probe new dark photon parameter space with feasible proton beam runs.

References

29 extracted · 29 resolved · 11 Pith anchors

[1] Exploring Portals to a Hidden Sector Through Fixed Targets 2009 · arXiv:0906.5614

[2] Dark Scalars and Heavy Neutral Leptons at DarkQuest, 2021

[3] Search for MeV dark photons in a light-shining-through-walls experiment at CERN 2014 · arXiv:1308.6521

[4] Proposal for an Experiment to Search for Light Dark Matter at the SPS · arXiv:1312.3309

[5] Alekhin et al.,A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case,Rept 2016 · arXiv:1504.04855

Receipt and verification

First computed	2026-05-18T02:44:16.902202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31cc2803b72c68d610461d1559f1241ba9670d52ba65dd26b7efeb831ae0bdf5

Aliases

arxiv: 2605.13696 · arxiv_version: 2605.13696v1 · doi: 10.48550/arxiv.2605.13696 · pith_short_12: GHGCQA5XFRUN · pith_short_16: GHGCQA5XFRUNMECG · pith_short_8: GHGCQA5X

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/GHGCQA5XFRUNMECGDUKVT4JEDO \
  | 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: 31cc2803b72c68d610461d1559f1241ba9670d52ba65dd26b7efeb831ae0bdf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae81aebea027807e3b007765ade0631106b009de7c9805bdc1d3090d19038646",
    "cross_cats_sorted": [
      "hep-ex",
      "nucl-ex"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2026-05-13T15:48:53Z",
    "title_canon_sha256": "7a591974144215dcd471b0cccdbc6b4e6f034bb1423745c67853ef8eed131aab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13696",
    "kind": "arxiv",
    "version": 1
  }
}