Pith Number

pith:FWLXYGX5

pith:2026:FWLXYGX56U3JLCK43C26DOL2SW

not attested not anchored not stored refs pending

Impact of neutron-proton pairing on the nucleon high-momentum distribution in symmetric nuclear matter

Guo-peng Li, Jian-min Dong, Jin Zhou, Ji-you Fu, Wei Zuo, Xin-le Shang

Neutron-proton pairing increases the high-momentum fraction of nucleons by a maximum of about 6 percent relative to short-range correlations in symmetric nuclear matter.

arxiv:2604.05410 v2 · 2026-04-07 · nucl-th

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\pithnumber{FWLXYGX56U3JLCK43C26DOL2SW}

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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

The HMT ratio, quantifying the high-momentum fraction in the BCS state relative to the normal state, reaches about 1.06 around the density of 0.052 fm^{-3}, indicating that the maximal contribution of the np pairing amounts to approximately 6% that from short-range correlations (SRCs).

C2weakest assumption

The extended Brueckner-Hartree-Fock approach combined with off-shell BCS theory accurately captures the interplay between np pairing and short-range correlations without significant missing higher-order effects or model-specific artifacts.

C3one line summary

Neutron-proton pairing contributes approximately 6% to the high-momentum tail relative to short-range correlations at density 0.052 fm^{-3}, with density dependence following the squared relative pairing gap over effective kinetic energy.

Formal links

1 machine-checked theorem link

Cited by

1 paper in Pith

Large amplification of the isospin-dependence of proton emitting source size in radioactive heavy-ion collisions: a signal of n-p correlation

Receipt and verification

First computed	2026-05-20T00:02:11.186536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d977c1afdf53695895cd8b5e1b97a95b43ae9efff0ba0dfd294a64c2bbc61d4

Aliases

arxiv: 2604.05410 · arxiv_version: 2604.05410v2 · doi: 10.48550/arxiv.2604.05410 · pith_short_12: FWLXYGX56U3J · pith_short_16: FWLXYGX56U3JLCK4 · pith_short_8: FWLXYGX5

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/FWLXYGX56U3JLCK43C26DOL2SW \
  | 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: 2d977c1afdf53695895cd8b5e1b97a95b43ae9efff0ba0dfd294a64c2bbc61d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cedac7282426fdea57de12ea2fc87d6e0e8f82db8aad6fcb57f91acdddbc31e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2026-04-07T04:10:14Z",
    "title_canon_sha256": "f9da10b1dba51d96f659f65c910499b2eb2414ddb51fc691c9a25094b4226c52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.05410",
    "kind": "arxiv",
    "version": 2
  }
}