{
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  "authors": [
    {
      "raw_name": "Xiaobin Wang", 
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        {
          "country": "China", 
          "value": "School of Physics, Nankai University, Tianjin 300071, China"
        }
      ], 
      "surname": "Wang", 
      "given_names": "Xiaobin", 
      "full_name": "Wang, Xiaobin"
    }, 
    {
      "raw_name": "Zanbin Xing", 
      "affiliations": [
        {
          "country": "China", 
          "value": "School of Physics, Nankai University, Tianjin 300071, China"
        }
      ], 
      "surname": "Xing", 
      "given_names": "Zanbin", 
      "full_name": "Xing, Zanbin"
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    {
      "raw_name": "Jiayin Kang", 
      "affiliations": [
        {
          "country": "China", 
          "value": "School of Physics, Nankai University, Tianjin 300071, China"
        }
      ], 
      "surname": "Kang", 
      "given_names": "Jiayin", 
      "full_name": "Kang, Jiayin"
    }, 
    {
      "raw_name": "Kh\u00e9pani Raya", 
      "affiliations": [
        {
          "country": "Spain", 
          "value": "Department of Integrated Sciences and Center for Advanced Studies in Physics, Mathematics and Computation, University of Huelva, E-21071 Huelva, Spain"
        }
      ], 
      "surname": "Raya", 
      "given_names": "Kh\u00e9pani", 
      "full_name": "Raya, Kh\u00e9pani"
    }, 
    {
      "raw_name": "Lei Chang", 
      "affiliations": [
        {
          "country": "China", 
          "value": "School of Physics, Nankai University, Tianjin 300071, China"
        }
      ], 
      "surname": "Chang", 
      "given_names": "Lei", 
      "full_name": "Chang, Lei"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Pion scalar, vector, and tensor form factors from a contact interaction"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.106.054016"
    }
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  "publication_info": [
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      "journal_volume": "106", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "5", 
      "year": 2022
    }
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      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
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  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2022"
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  "control_number": "72697", 
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      "categories": [
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      "value": "2207.04339"
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  "abstracts": [
    {
      "source": "APS", 
      "value": "The pion scalar, vector, and tensor form factors are calculated within a symmetry-preserving contact interaction model (CI) of quantum chromodynamics (QCD), encompassed within a Dyson-Schwinger and Bethe-Salpeter equations approach. In addition to the traditional rainbow-ladder truncation, a modified interaction kernel for the Bethe-Salpeter equation is adopted. The implemented kernel preserves the vector and axial-vector Ward-Takahashi identities, while also providing additional freedom. Consequently, new tensor structures are generated in the corresponding interaction vertices, shifting the location of the mass poles appearing in the quark-photon and quark tensor vertex and yielding a notorious improvement in the final results. Despite the simplicity of the CI, the computed form factors and radii are compatible with recent lattice QCD simulations."
    }
  ], 
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