Pith Number

pith:E4FQG7AT

pith:2026:E4FQG7ATQFDBDIQ3ZOJ3GOWVPH

not attested not anchored not stored refs resolved

Logarithmically-accurate showers with massive quarks

Alba Soto-Ontoso, Gregory Soyez, Melissa van Beekveld, Rob Verheyen, Silvia Ferrario Ravasio

PanScales final-state showers now include quark masses at next-to-leading logarithmic accuracy while preserving their original performance for massless observables.

arxiv:2605.13953 v1 · 2026-05-13 · hep-ph

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\pithnumber{E4FQG7ATQFDBDIQ3ZOJ3GOWVPH}

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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

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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

We formulate PanScales final-state showers that account for quark masses and achieve next-to-leading logarithmic accuracy, while preserving the original accuracy of the showers for observables where the mass of the quarks is irrelevant.

C2weakest assumption

The modifications for quark masses can be implemented without spoiling the logarithmic accuracy for massless observables, and the fixed-order tests plus all-order comparisons are sufficient to establish NLL accuracy for the targeted observables.

C3one line summary

PanScales final-state showers now include quark masses at NLL accuracy while keeping original accuracy for massless observables.

References

57 extracted · 57 resolved · 17 Pith anchors

[1] S. Caletti, A. J. Larkoski, S. Marzani and D. Reichelt,Practical jet flavour through NNLO, Eur. Phys. J. C82(2022) 632, [2205.01109] 2022

[2] M. Czakon, A. Mitov and R. Poncelet,Infrared-safe flavoured anti-k T jets,JHEP04(2023) 138, [2205.11879] 2023

[3] R. Gauld, A. Huss and G. Stagnitto,Flavor Identification of Reconstructed Hadronic Jets, Phys. Rev. Lett.130(2023) 161901, [2208.11138] 2023

[4] F. Caola, R. Grabarczyk, M. L. Hutt, G. P. Salam, L. Scyboz and J. Thaler,Flavored jets with exact anti-k t kinematics and tests of infrared and collinear safety,Phys. Rev. D108 (2023) 094010, [2306.0 2023

[5] Behring et al.,Flavoured jet algorithms: a comparative study,JHEP09 (2025) 149, [2506.13449] 2025

Receipt and verification

First computed	2026-05-17T23:39:13.708769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

270b037c13814611a21bcb93b33ad579fcd5947cca6d15283d7eb2b8a011bcbf

Aliases

arxiv: 2605.13953 · arxiv_version: 2605.13953v1 · doi: 10.48550/arxiv.2605.13953 · pith_short_12: E4FQG7ATQFDB · pith_short_16: E4FQG7ATQFDBDIQ3 · pith_short_8: E4FQG7AT

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/E4FQG7ATQFDBDIQ3ZOJ3GOWVPH \
  | 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: 270b037c13814611a21bcb93b33ad579fcd5947cca6d15283d7eb2b8a011bcbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d63274945f271645e86dfb2c732f92b5fb338197de93ef7f6641b97bed8d4f10",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2026-05-13T18:00:00Z",
    "title_canon_sha256": "055884349ac5055766e290ada08db158943103a7115a85ea71934bf4feeee411"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13953",
    "kind": "arxiv",
    "version": 1
  }
}