RT Journal Article
T1 Constraining the energy-momentum tensor through the DVCS dispersion relation beyond leading power
A1 Martínez Fernández, Víctor
A1 Binosi, Daniele
A1 Mezrag, Cédric
A1 Yao, Zhao-Quian
AB In this paper, we analyze and interpret the kinematic power corrections to deeply virtual Compton scattering dispersion relation. We show that the kinematic corrections at twist-four can be connected to other form factors of the energy-momentum tensor beyond the pressure distribution involved at leading power, namely the ones related to momentum and total angular momentum distributions. In the nucleon case, these corrections are not negligible at presently accessible virtualities. The deeply virtual Compton scattering (DVCS) subtraction constant becomes an experimental constraint on momentum distributions, pressure forces distributions, and total angular momentum distributions. Finally, we use continuum and lattice-QCD results to predict the expected size of the DVCS subtraction constant, and conclude that momentum distributions are responsible of roughly one-third of the experimental signal at Q2 = 2 GeV2.
PB American Physical Society
SN 2470-0010
SN 2470-0029 (electrónico)
YR 2026
FD 2026
LK https://hdl.handle.net/10272/28499
UL https://hdl.handle.net/10272/28499
LA eng
NO Martínez-Fernández, V., Binosi, D., Mezrag, C., & Yao, Z.-Q. (2026). Constraining the energy-momentum tensor through the DVCS dispersion relation beyond leading power. Physical Review D, 113(9). https://doi.org/10.1103/rqnd-gvlq
NO This research was funded in part by l’Agence Nationale de la Recherche (ANR), Project No. ANR-23-CE31-0019. This work was made possible by Institut Pascal at Université Paris-Saclay with the support of the program “Investissements d’avenir” ANR-11-IDEX-0003-01.
DS Repositorio Institucional de la Universidad de Huelva
RD 15 jul 2026