Pith Number

pith:MGVKX2GT

pith:2004:MGVKX2GTA6CLKWOULH24JCD3AY

not attested not anchored not stored refs resolved

A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms

Paolo Nason

Simple extensions to shower algorithms let Monte Carlo programs include NLO QCD corrections to the hardest emission without negative event weights.

arxiv:hep-ph/0409146 v1 · 2004-09-13 · hep-ph

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\pithnumber{MGVKX2GTA6CLKWOULH24JCD3AY}

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Record completeness

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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

I show that with simple extensions of the shower algorithms in Monte Carlo programs, one can implement NLO corrections to the hardest emission that overcome the problems of negative weighted events found in previous implementations.

C2weakest assumption

That simple extensions to existing shower algorithms suffice to correctly embed NLO corrections for the hardest emission without introducing new inconsistencies or requiring substantial additional machinery.

C3one line summary

A new method extends shower Monte Carlo algorithms to add NLO QCD corrections to the hardest emission while avoiding negative event weights.

References

16 extracted · 16 resolved · 6 Pith anchors

[1] Matching NLO QCD computations and parton shower simulations 2002 · arXiv:hep-ph/0204244

[2] Matching NLO QCD and parton showers in heavy flavour production 2003 · arXiv:hep-ph/0305252

[3] S. Frixione and B. R. Webber, The mc@nlo 2.0 event generator , hep-ph/0307146 · arXiv:hep-ph/0307146

[4] New formalism for QCD parton showers 2003 · arXiv:hep-ph/0310083

[5] S. Gieseke, A. Ribon, M. H. Seymour, P. Stephens, and B. We bber, Herwig++ 1.0: An event generator for e+ e- annihilation , JHEP 02 (2004) 005, [ hep-ph/0311208] 2004 · arXiv:hep-ph/0311208

Formal links

2 machine-checked theorem links

Cited by

83 papers in Pith

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Electroweak corrections to Higgs boson pair production: The quark channel

Polarized Deep-Inelastic Scattering with Spin Correlations in Herwig 7

Receipt and verification

First computed	2026-07-04T17:47:04.854089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61aaabe8d30784b559d459f5c4887b0623cfd071cdf34560b61845b276d055ed

Aliases

arxiv: hep-ph/0409146 · arxiv_version: hep-ph/0409146v1 · doi: 10.48550/arxiv.hep-ph/0409146 · pith_short_12: MGVKX2GTA6CL · pith_short_16: MGVKX2GTA6CLKWOU · pith_short_8: MGVKX2GT

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/MGVKX2GTA6CLKWOULH24JCD3AY \
  | 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: 61aaabe8d30784b559d459f5c4887b0623cfd071cdf34560b61845b276d055ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaaedc517bf63e94c1eaa3f5ab2d17bbb4a72e6f3047e6766cf43a1d03b6e7ba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2004-09-13T15:09:18Z",
    "title_canon_sha256": "ec5e5b426402eb6b18ff4d8bfc820e06cb5cf62d412a97b3ad0c3fde07043aaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0409146",
    "kind": "arxiv",
    "version": 1
  }
}