Pith Number

pith:EN6TTVC7

pith:2026:EN6TTVC7P23ILH6QJQLBBRFX2Z

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Hyperfine-Resolved Rovibrational and Rotational Spectroscopy of OH$^+$ ($X ^3\Sigma^-$)

Arshia M. Jacob, Dominik Riechers, Holger S. P. M\"uller, Lea Schneider, Oskar Asvany, Pavol Jusko, Stephan Schlemmer, Urs U. Graf, Weslley G. D. P. Silva

A global fit of new and prior data refines the spectroscopic constants of OH+ especially in the ground vibrational state.

arxiv:2605.12102 v1 · 2026-05-12 · physics.atm-clus · astro-ph.SR · physics.chem-ph

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Claims

C1strongest claim

A global fit combining rovibrational and pure rotational transitions from the literature with those newly obtained in this work was performed, leading to improvements in the spectroscopic constants of OH+, particularly those in the ground vibrational state.

C2weakest assumption

That simulation of Zeeman-split line contours accurately recovers the field-free center frequencies without residual systematic bias from the magnetic field or trap conditions.

C3one line summary

New hyperfine-resolved measurements of the fundamental vibrational band and the N=2←1 rotational transition of OH+ (X 3Σ−) yield improved spectroscopic constants via global fit.

References

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[1] Hyperfine-Resolved Rovibrational and Rotational Spectroscopy of OH$^+$ ($X ^3\Sigma^-$) 2010 · arXiv:2605.12102

[2] It should be pointed out that the transition dipole moment alone is not always sufficient to model the IR in- tensities, as shown for thev=1−0band of CH +70

[3] 5 Rotational measurements:N=2←1 The spin manifold of theN=2←1rotational transition of OH + was predicted to fall exactly in the tuning range of one of our THz sources (1.83-2.07 THz 65). The lower sta 2016

[4] This value agrees well with recent measurements of other open shell species in our laboratory , e.g 2016

[5] Briefly , the rovibrational energy levels of a di- atomic molecule can be represented by the Dunham expression E(v,J)/h= ∑ i,j Yi j(v+1/2) iJ j(J+1) j,(1) whereY i j are the Dunham parameters. The ele

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Hyperfine-Resolved Rovibrational and Rotational Spectroscopy of OH$^+$ ($X ^3\Sigma^-$)

Receipt and verification

First computed	2026-06-01T01:03:54.859604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

237d39d45f7eb6859fd04c1610c4b7d6650becc6e23febe0decb316c9a829136

Aliases

arxiv: 2605.12102 · arxiv_version: 2605.12102v1 · doi: 10.48550/arxiv.2605.12102 · pith_short_12: EN6TTVC7P23I · pith_short_16: EN6TTVC7P23ILH6Q · pith_short_8: EN6TTVC7

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curl -sH 'Accept: application/ld+json' https://pith.science/pith/EN6TTVC7P23ILH6QJQLBBRFX2Z \
  | 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: 237d39d45f7eb6859fd04c1610c4b7d6650becc6e23febe0decb316c9a829136

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52b1d0d34698eab630fdc4de784b5348ab8c83048e9dc7f6295600c3de05cce4",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atm-clus",
    "submitted_at": "2026-05-12T13:18:42Z",
    "title_canon_sha256": "7b478aa7e711e9d0709489417de6af47435698516216173b8ed956369ce9f59a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12102",
    "kind": "arxiv",
    "version": 1
  }
}