Pith Number

pith:MUOV72L5

pith:2026:MUOV72L53XRA7D73S673APCPVV

not attested not anchored not stored refs resolved

Muon Nuclear Data Development Project

Adrian Hillier, Dai Tomono, Futoshi Minato, Hiroki Iwamoto, Megumi Niikura, Naritoshi Kawamura, Rurie Mizuno, Sayani Biswas, Shinichiro Abe, Shoichiro Kawase, Teiichiro Matsuzaki, Yuji Yamaguchi, Yukinobu Watanabe

Japan launches the Muon Nuclear Data project to build the first dedicated library for muon capture reactions.

arxiv:2605.15539 v1 · 2026-05-15 · nucl-ex · nucl-th

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MUOV72L53XRA7D73S673APCPVV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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

To address this gap, we have launched the Muon Nuclear Data (muND) Development Project in Japan, aiming to construct a dedicated data library for muon capture reactions. The library consists of four sub-libraries: muonic X-ray energies and intensities (XR), lifetimes of muonic atoms and nuclear capture rates (LT), energy spectra of emitted particles (ES), and production branching ratios of residual nuclei (BR).

C2weakest assumption

That experimental measurements, theoretical modeling, and machine learning techniques can be successfully integrated to compile and evaluate comprehensive data for the four sub-libraries (abstract, paragraph describing the project approach). If this integration fails to produce reliable evaluated data, the central goal of filling the nuclear data gap would not be met.

C3one line summary

The Muon Nuclear Data (muND) Development Project has been initiated to compile and evaluate data for muon capture reactions across four sub-libraries using experiments, theory, and machine learning.

References

25 extracted · 25 resolved · 1 Pith anchors

[1] M. Niikura, S. Abe, S. Kawase, T. Matsuzaki, F. Minato, R. Mizuno, Y . Watanabe, Y . Yamaguchi, Muon Nuclear Data, inProceedings of the Joint Sym- posium on Nuclear Data and PHITS in 2023, JAEA- Conf2 2023 · doi:10.11484/jaea-

[2] T. Y . Saito, M. Niikura, T. Matsuzaki, H. Saku- rai, M. Igashira, H. Imao, K. Ishida, T. Katabuchi, Y . Kawashima, M. K. Kubo et al., Muonic x-ray measurement for the nuclear charge distribution: The 2025 · doi:10.1103/physrevc.111.034313

[3] R. Mizuno, M. Niikura, T. Y . Saito, T. Matsuzaki, H. Sakurai, A. Amato, S. Asari, S. Biswas, I. Chiu, L. Gerchow et al., Development of wide range pho- ton detection system for muonic X-ray spectrosc 2024 · doi:10.1016/j.nima.2023.169029

[4] M. Bjorklund, S. Foxley, T. Agoro, S. Basak, J. Lord, S. Biswas, K. Butler, A. Hillier, EV A: A User- Friendly Analysis Package for Negative Muon Ele- mental Analysis, J. Phys.: Conf. Ser. (2026) in p 2026

[5] com/ISISMuon/EV A (accessed May 2026) 2026

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:01:04.275120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

651d5fe97ddde20f8ffb97bfb03c4fad6c46b188f795b06d7796852fb315dcce

Aliases

arxiv: 2605.15539 · arxiv_version: 2605.15539v1 · doi: 10.48550/arxiv.2605.15539 · pith_short_12: MUOV72L53XRA · pith_short_16: MUOV72L53XRA7D73 · pith_short_8: MUOV72L5

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/MUOV72L53XRA7D73S673APCPVV \
  | 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: 651d5fe97ddde20f8ffb97bfb03c4fad6c46b188f795b06d7796852fb315dcce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e69346519d92a39e779f7b3ba4dad1e512e3174299c9672938206002c2be8b7",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2026-05-15T02:21:34Z",
    "title_canon_sha256": "c1159a18274bfa3249d6a9a006b29f853216de70b603b7cc1c64cbd53366d53b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15539",
    "kind": "arxiv",
    "version": 1
  }
}