Pith Number

pith:7MD7BDHK

pith:2026:7MD7BDHKHOFE7YLY2PLYU2IFPB

not attested not anchored not stored refs resolved

Taming nuclear size and shape effects in superallowed beta-decay

Ben Ohayon, Bingcheng He, Chien-Yeah Seng, Lucas Platter, Matthias Heinz, Mikhail Gorchtein

Combining experimental nuclear radii with ab initio moment ratios tames shape effects in superallowed beta decays.

arxiv:2605.13985 v1 · 2026-05-13 · nucl-th · hep-ph · nucl-ex

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\usepackage{pith}
\pithnumber{7MD7BDHKHOFE7YLY2PLYU2IFPB}

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Record completeness

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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

The calculation leads to a more precise test for the first-row CKM unitarity with reduced theoretical uncertainties.

C2weakest assumption

The ratios of nuclear charge moments obtained from IMSRG calculations, when combined with experimental radii, accurately capture the shape dependence of the statistical rate function f for these nuclei.

C3one line summary

A combined ab initio and experimental analysis of nuclear form factors reduces uncertainties in superallowed beta-decay rates, enabling a more precise first-row CKM unitarity test.

References

75 extracted · 75 resolved · 5 Pith anchors

[1] S. L. Glashow, Partial-symmetries of weak interactions, Nucl. Phys.22, 579 (1961) 1961

[2] A. Salam and J. C. Ward, Weak and electromagnetic interactions, Nuovo Cim.11, 568 (1959) 1959

[3] Weinberg, A model of leptons, Phys 1967

[4] Cabibbo, Unitary Symmetry and Leptonic Decays, Phys 1963

[5] M. Kobayashi and T. Maskawa, CP Violation in the Renormalizable Theory of Weak Interaction, Prog. Theor. Phys.49, 652 (1973) 1973

Formal links

1 machine-checked theorem link

Receipt and verification

First computed	2026-05-17T23:39:13.329522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb07f08cea3b8a4fe178d3d78a69057841f5f5b7fbbbe0ed3bef29a5c9e70551

Aliases

arxiv: 2605.13985 · arxiv_version: 2605.13985v1 · doi: 10.48550/arxiv.2605.13985 · pith_short_12: 7MD7BDHKHOFE · pith_short_16: 7MD7BDHKHOFE7YLY · pith_short_8: 7MD7BDHK

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7MD7BDHKHOFE7YLY2PLYU2IFPB \
  | 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: fb07f08cea3b8a4fe178d3d78a69057841f5f5b7fbbbe0ed3bef29a5c9e70551

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb03a645a610b539b70724ca7d3b262f3d9983b6f1e0363c7c5554da9f74d25d",
    "cross_cats_sorted": [
      "hep-ph",
      "nucl-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2026-05-13T18:01:39Z",
    "title_canon_sha256": "d071a58bac0de13dbe2bfefd7107e7d34bd01f42bc8bb3575f2b80279aff2af7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13985",
    "kind": "arxiv",
    "version": 1
  }
}