Pith Number

pith:SLCTX536

pith:2025:SLCTX5364G2QDFUUOVHNJWVR67

not attested not anchored not stored refs resolved

$D^*\pi$ interaction from the lineshape of $D_1(2420)$ in $B$-decays

A. Mart\'inez Torres, Breno Agat\~ao, K. P. Khemchandani, Luciano M. Abreu, Pedro Brand\~ao

Coupled-channel meson interactions reproduce the D*π mass distribution for D1(2420) in B decays.

arxiv:2512.24370 v2 · 2025-12-30 · hep-ph · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SLCTX5364G2QDFUUOVHNJWVR67}

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

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 present a model calculation to reproduce the differential mass distribution for the D*π system in the reactions B−→D∗+π−π− and B+→Ds+D∗−π+ analyzed by the LHCb Collaboration, which shows a dominant signal for D1(2420). We also determine the D*π scattering length.

C2weakest assumption

That the D1(2420) is generated entirely by coupled-channel meson-meson dynamics with no significant contribution from other degrees of freedom or from the specific hadronization mechanism chosen for the weak decay.

C3one line summary

A coupled-channel model of meson-meson interactions reproduces the LHCb D*π mass distribution in B decays and yields a D*π scattering length.

References

25 extracted · 25 resolved · 3 Pith anchors

[1] S. Acharyaet al.(ALICE), Phys. Rev. D110, 032004 (2024) 2024

[2] Z.-H. Guo, L. Liu, U.-G. Meißner, J. A. Oller, and A. Rusetsky, Eur. Phys. J. C79, 13 (2019) 2019

[3] F.-K. Guo, C. Hanhart, and U.-G. Meissner, Eur. Phys. J. A40, 171 (2009) 2009

[4] L. M. Abreu, D. Cabrera, F. J. Llanes-Estrada, and J. M. Torres-Rincon, Annals Phys.326, 2737 (2011) 2011

[5] L. S. Geng, N. Kaiser, J. Martin-Camalich, and W. Weise, Phys. Rev. D82, 054022 (2010) 2010

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-18T02:44:32.026286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92c53bf77ee1b5019694754ed4dab1f7c1a66ae6af7f533ebf7b84abf9815aaa

Aliases

arxiv: 2512.24370 · arxiv_version: 2512.24370v2 · doi: 10.48550/arxiv.2512.24370 · pith_short_12: SLCTX5364G2Q · pith_short_16: SLCTX5364G2QDFUU · pith_short_8: SLCTX536

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/SLCTX5364G2QDFUUOVHNJWVR67 \
  | 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: 92c53bf77ee1b5019694754ed4dab1f7c1a66ae6af7f533ebf7b84abf9815aaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb53d08d9f542da68ba30d04055e5a36c36a2108e425cecb1d34969b06b9bed3",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-12-30T17:28:39Z",
    "title_canon_sha256": "14a52e10f42e96e6f3b2922e8d4f50f935dc450779e7028abc6f09db81ad30f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.24370",
    "kind": "arxiv",
    "version": 2
  }
}