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arXiv · 2306.08683

Sum rules for the Gravitational Form Factors using light-front dressed quark state

Jai More·Asmita Mukherjee·Sreeraj Nair·Sudeep Saha
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Abstract

We consider a light-front dressed quark state, per se, instead of a proton state, we consider a simple composite spin-1/2 state of a quark dressed with a gluon. This perturbative model incorporates gluonic degrees of freedom, which enable us to evaluate the gravitational form factors (GFFs) of the quark as well as the gluon in this model \cite{More:2021stk, More:2023pcy}. We employ the Hamiltonian framework and choose the light-front gauge $A^+=0$. We calculate the four GFFs and corroborate the sum rules that GFFs satisfy. The GFF $D$ is attributed to information like pressure, shear, and energy distributions. We analyze some of these distributions for a dressed quark state at one loop in QCD.

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Jai More, Asmita Mukherjee, Sreeraj Nair, Sudeep Saha. 2023-06-14. Sum rules for the Gravitational Form Factors using light-front dressed quark state. https://doi.org/10.1007/s00601-023-01841-w

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