Proton gravitational form factors and mechanical properties in a light-front quark-diquark model


  • Dipankar Chakrabarti Indian Institute of Technology Kanpur
  • Chandan Mondal Chinese Academy of Sciences
  • Asmita Mukherjee Indian Institute of Technology Bombay
  • Sreeraj Nair The Institute of Modern Physics of the Chinese Academy of Sciences
  • Xingbo Zhao Chinese Academy of Sciences



Light-front, quark-diquark, generalized form factors, mechanical properties


We present our recent calculation of the gravitational form factors (GFFs) of proton using the light-front quark-diquark model constructed by the soft-wall AdS/QCD. We extract the four quark GFFs by calculating the matrix elements of the symmetric energy momentum tensor. Using the D-term we calculate the pressure and shear distributions of quarks inside the proton in the impact parameter space. The GFFs, A(Q2) and B(Q2) are found to be consistent with the lattice QCD, while the qualitative behavior of the D-term form factor is in agreement with the extracted data from the deeply virtual Compton scattering (DVCS) experiments at JLab, the lattice QCD, and the predictions of different phenomenological models.


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How to Cite

Chakrabarti D, Mondal C, Mukherjee A, Nair S, Zhao X. Proton gravitational form factors and mechanical properties in a light-front quark-diquark model. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 14 [cited 2024 May 20];3(3):0308103 1-5. Available from: