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    {
      "surname": "Wellenhofer", 
      "given_names": "C.", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Kernphysik, Technische Universit\u00e4t Darmstadt, Darmstadt, Germany"
        }, 
        {
          "country": "Germany", 
          "value": "ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum f\u00fcr Schwerionenforschung GmbH, Darmstadt, Germany"
        }
      ], 
      "full_name": "Wellenhofer, C.", 
      "orcid": "0000-0001-9742-3461", 
      "email": "wellenhofer@theorie.ikp.physik.tu-darmstadt.de"
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    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics, University of California, Berkeley, United States of America"
        }, 
        {
          "country": "USA", 
          "value": "Lawrence Berkeley National Laboratory, Berkeley, United States of America"
        }
      ], 
      "surname": "Drischler", 
      "email": "cdrischler@berkeley.edu", 
      "full_name": "Drischler, C.", 
      "given_names": "C."
    }, 
    {
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Kernphysik, Technische Universit\u00e4t Darmstadt, Darmstadt, Germany"
        }, 
        {
          "country": "Germany", 
          "value": "ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum f\u00fcr Schwerionenforschung GmbH, Darmstadt, Germany"
        }, 
        {
          "country": "Germany", 
          "value": "Max-Planck-Institut f\u00fcr Kernphysik, Heidelberg, Germany"
        }
      ], 
      "surname": "Schwenk", 
      "email": "schwenk@physik.tu-darmstadt.de", 
      "full_name": "Schwenk, A.", 
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      "source": "Elsevier", 
      "title": "Dilute Fermi gas at fourth order in effective field theory"
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      "primary": "Physics Letters B"
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      "source": "Elsevier", 
      "value": "Using effective field theory methods, we calculate for the first time the complete fourth-order term in the Fermi-momentum or <math><msub><mrow><mi>k</mi></mrow><mrow><mi>F</mi></mrow></msub><msub><mrow><mi>a</mi></mrow><mrow><mi>s</mi></mrow></msub></math> expansion for the ground-state energy of a dilute Fermi gas. The convergence behavior of the expansion is examined for the case of spin one-half fermions and compared against quantum Monte-Carlo results, showing that the Fermi-momentum expansion is well-converged at this order for <math><mo>|</mo><msub><mrow><mi>k</mi></mrow><mrow><mi>F</mi></mrow></msub><msub><mrow><mi>a</mi></mrow><mrow><mi>s</mi></mrow></msub><mo>|</mo><mo>\u2272</mo><mn>0.5</mn></math>."
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