Pith Number

pith:AWJ6J42W

pith:2026:AWJ6J42WKOFMLBSYXW4FF2KIUQ

not attested not anchored not stored refs resolved

Proposal for the first measurement of antiproton polarization in proton-nucleus interactions

D. Alfs, D. Grzonka, G. Khatri, H. Xu, J. Ritman, J. Smyrski, M. Zielinski, P. Kulessa, T. Sefzick, V. Verhoeven

A CERN experiment could detect whether antiprotons from unpolarized proton-nucleus collisions acquire transverse polarization.

arxiv:2604.13231 v1 · 2026-04-14 · hep-ex

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\usepackage{pith}
\pithnumber{AWJ6J42WKOFMLBSYXW4FF2KIUQ}

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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

✓ 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

Based on detailed Monte Carlo simulations of the proposed experimental setup at CERN, we estimate the statistical sensitivity required to detect a certain degree of polarization.

C2weakest assumption

The Monte Carlo simulations accurately model the detector response, background, and scattering kinematics in the Coulomb-nuclear interference region for the proposed setup.

C3one line summary

The authors outline a feasible method using Monte Carlo simulations to measure transverse antiproton polarization in proton-nucleus collisions via elastic scattering asymmetry in the Coulomb-nuclear interference region.

References

69 extracted · 69 resolved · 0 Pith anchors

[1] O. Chamberlain, E. Segre, C. Wiegand, and T. Ypsilan- tis. Observation of Anti-protons. Phys. Rev., 100:947–950, 1955 1955

[2] F. Krienen. Initial cooling experiments (ice) at cern. In W. S. Newman, editor, 11th International Conference on High-Energy Accelerators: Geneva, Switzerland, July 7–11, 1980, pages 781–793, Basel, 1 1980

[3] R. Caravita, A. Cridland Mathad, J. S. Hangst, M. Hori, B. M. Latacz, A. Obertelli, P. Perez, S. Ulmer, and E. Wid- mann. CERN AD/ELENA Antimatter Program. 3 2025 2025

[4] ELENA - From Commissioning to Operation 2022

[5] P. Spiller and G. Franchetti. The F AIR accelerator project at GSI. Nucl. Instrum. Meth. A, 561:305–309, 2006 2006

Receipt and verification

First computed	2026-05-20T01:05:13.249489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0593e4f356538ac58658bdb852e948a403acf88caee778bb085aa56a7a907032

Aliases

arxiv: 2604.13231 · arxiv_version: 2604.13231v1 · doi: 10.48550/arxiv.2604.13231 · pith_short_12: AWJ6J42WKOFM · pith_short_16: AWJ6J42WKOFMLBSY · pith_short_8: AWJ6J42W

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/AWJ6J42WKOFMLBSYXW4FF2KIUQ \
  | 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: 0593e4f356538ac58658bdb852e948a403acf88caee778bb085aa56a7a907032

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d569171cf31093a80cfe715d432416ae3755e2d5a68ad86033a8ceb52bf34e95",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ex",
    "submitted_at": "2026-04-14T18:58:35Z",
    "title_canon_sha256": "e2f653d3bc9d31cd7e124c6817b60afd7472349ec7465afaef2624add88824a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.13231",
    "kind": "arxiv",
    "version": 1
  }
}