{
  "abstract": "This paper reports exclusive cross sections for the $ep \\to e'π^+π^-p'$ reaction using the CLAS12 detector at Jefferson Laboratory. The extractions of fully integrated and nine single-differential cross sections are presented for the first time for photon virtualities $Q^2$ from 2.4 to 8.0 GeV$^2$ and center-of-mass energies $W$ from 1.4 to 2.1 GeV, which covers a large part of the nucleon resonance region. These data considerably extend the kinematic reach of previous measurements from CLAS that covered $Q^2$ up to 5.0 GeV$^2$. Exclusive $γ_v p \\to π^+ π^-p'$ cross section measurements are of particular importance for the extraction of $γ_vpN^*$ resonance electrocouplings across the $N^*$ spectrum, especially in the mass range above 1.6 GeV where several resonances decay preferentially to the $ππN$ final states. The electrocouplings with extended $Q^2$ coverage expected from these new data will enable an improved understanding of the emergence of $N^*$ mass and structure in the transition from the strongly coupled toward the perturbative QCD regime.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.19395",
  "author_total": 148,
  "authors": [
    {
      "name": "K Neupane"
    },
    {
      "name": "R.W Gothe"
    },
    {
      "name": "D.S Carman"
    },
    {
      "name": "V.I Mokeev"
    },
    {
      "name": "A.G Acar"
    },
    {
      "name": "P Achenbach"
    },
    {
      "name": "J.S Alvarado"
    },
    {
      "name": "W.R Armstrong"
    },
    {
      "name": "H Avakian"
    },
    {
      "name": "N.A Baltzell"
    },
    {
      "name": "L Barion"
    },
    {
      "name": "M Bashkanov"
    },
    {
      "name": "M Battaglieri"
    },
    {
      "name": "F Benmokhtar"
    },
    {
      "name": "A Bianconi"
    },
    {
      "name": "A.S Biselli"
    },
    {
      "name": "A Biswas"
    },
    {
      "name": "F Bossù"
    },
    {
      "name": "S Boiarinov"
    },
    {
      "name": "M Bondi"
    },
    {
      "name": "K.-Th Brinkmann"
    },
    {
      "name": "W.J Briscoe"
    },
    {
      "name": "W.K Brooks"
    },
    {
      "name": "J Bryce"
    },
    {
      "name": "N.L. Bucuru R."
    },
    {
      "name": "V.D Burkert"
    },
    {
      "name": "T Cao"
    },
    {
      "name": "A Celentano"
    },
    {
      "name": "P Chatagnon"
    },
    {
      "name": "V Chesnokov"
    },
    {
      "name": "H Chinchay"
    },
    {
      "name": "G Ciullo"
    },
    {
      "name": "E.W Cline"
    },
    {
      "name": "P.L Cole"
    },
    {
      "name": "M Contalbrigo"
    },
    {
      "name": "A d'Angelo"
    },
    {
      "name": "N Dashyan"
    },
    {
      "name": "R de Vita"
    },
    {
      "name": "A Deur"
    },
    {
      "name": "S Diehl"
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    {
      "name": "C Dilks"
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    {
      "name": "C Djalali"
    },
    {
      "name": "R Dupre"
    },
    {
      "name": "H Egiyan"
    },
    {
      "name": "M Ehrhart"
    },
    {
      "name": "A El Alaoui"
    },
    {
      "name": "L El Fassi"
    },
    {
      "name": "L Elouadrhiri"
    },
    {
      "name": "C Fanelli"
    },
    {
      "name": "M Farooq"
    },
    {
      "name": "S Fegan"
    },
    {
      "name": "I.P Fernando"
    },
    {
      "name": "E Ferrand"
    },
    {
      "name": "A Filippi"
    },
    {
      "name": "M Filippini"
    },
    {
      "name": "C Fogler"
    },
    {
      "name": "S Frantzen"
    },
    {
      "name": "K Gates"
    },
    {
      "name": "G.P Gilfoyle"
    },
    {
      "name": "D.I Glazier"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5yy2asgp2vp5n.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.19395",
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  "openalex": "W7213583712",
  "pdf_url": "https://arxiv.org/pdf/2609.19395",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-18",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5yy2asgp2vp5n.ris",
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      "first_seen": "2026-10-30T12:17:40Z",
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      "url": "https://arxiv.org/abs/2609.19395"
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  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Measurements of $γ_v p \\to π^+ π^-p'$ Cross Sections with the CLAS12 Detector for $Q^2$ from 2.4-8.0 GeV$^2$ and $W$ from 1.4-2.1 GeV",
  "title_text": "Measurements of γ_v p → π^+ π^-p' Cross Sections with the CLAS12 Detector for Q^2 from 2.4-8.0 GeV^2 and W from 1.4-2.1 GeV",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:03Z",
  "url": "https://research.draconitic.com/paper/5yy2asgp2vp5n",
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