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          "country": "China", 
          "value": "Department of Physics, Hebei University, Baoding, China"
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        {
          "country": "China", 
          "value": "Hebei Key Laboratory of High-precision Computation and Application of Quantum Field Theory, Baoding, China"
        }, 
        {
          "country": "China", 
          "value": "Department of Physics, Chongqing University, Chongqing, China"
        }
      ], 
      "surname": "Feng", 
      "email": "fengtf@hbu.edu.cn", 
      "full_name": "Feng, Tai-Fu", 
      "given_names": "Tai-Fu"
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    {
      "affiliations": [
        {
          "country": "China", 
          "value": "Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Science, Beijing, China"
        }, 
        {
          "country": "China", 
          "value": "CCAST (World Laboratory), Beijing, China"
        }, 
        {
          "country": "China", 
          "value": "School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China"
        }
      ], 
      "surname": "Chang", 
      "email": "zhangzx@itp.ac.cn", 
      "full_name": "Chang, Chao-Hsi", 
      "given_names": "Chao-Hsi"
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    {
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Taiyuan University of Technology, Taiyuan, China"
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      ], 
      "surname": "Chen", 
      "email": "chenjianbin@tyut.edu.cn", 
      "full_name": "Chen, Jian-Bin", 
      "given_names": "Jian-Bin"
    }, 
    {
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Hebei University, Baoding, China"
        }, 
        {
          "country": "China", 
          "value": "Hebei Key Laboratory of High-precision Computation and Application of Quantum Field Theory, Baoding, China"
        }
      ], 
      "surname": "Zhang", 
      "email": "hbzhang@hbu.edu.cn", 
      "full_name": "Zhang, Hai-Bin", 
      "given_names": "Hai-Bin"
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  "titles": [
    {
      "source": "Elsevier", 
      "title": "GKZ-hypergeometric systems for Feynman integrals"
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      "primary": "Nuclear Physics B"
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      "source": "Elsevier", 
      "value": "Basing on the systems of linear partial differential equations derived from Mellin-Barnes representations and Miller's transformation, we obtain GKZ-hypergeometric systems of one-loop self energy, one-loop triangle, two-loop vacuum, and two-loop sunset diagrams, respectively. The codimension of derived GKZ-hypergeometric system equals the number of independent dimensionless ratios among the external momentum squared and virtual mass squared. Taking GKZ-hypergeometric systems of one-loop self energy, massless one-loop triangle, and two-loop vacuum diagrams as examples, we present in detail how to perform triangulation and how to construct canonical series solutions in the corresponding convergent regions. The series solutions constructed for these hypergeometric systems recover the well known results in literature."
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