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DOE OSTI · 2589756

Study of deeply virtual Compton scattering at the future electron-ion collider

Sznajder, P. [National Centre for Nuclear Research (NCBJ)] (ORCID:000000022684803X)·Aschenauer, E. C. [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000238565475)·Batozskaya, V. [National Centre for Nuclear Research (NCBJ), Warsaw (Poland)] (ORCID:0000000310899200)·Fazio, S. [Univ. of Calabria, Rende (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Cosenza, Rende (Italy)] (ORCID:0000000243211946)·Jentsch, A. [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000173266991)·Kim, J. [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:000000031018810X)·Kumerički, K. [Univ. of Zagreb (Croatia)] (ORCID:0000000197585647)·Moutarde, H. [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000331436213)·Passek-K., K. [Ruđer Bošković Institute, Zagreb (Croatia)] (ORCID:0000000165203640)·Sokhan, D. [Univ. of Glasgow, Scotland (United Kingdom)] (ORCID:0000000272045860)·Spiesberger, H. [Johannes Gutenberg Univ., Mainz (Germany)] (ORCID:0000000216743736)·Tezgin, K. [Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000194929512)
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Abstract

This study presents the impact of future measurements of deeply virtual Compton scattering (DVCS) with the ePIC detector at the electron-ion collider (EIC), currently under construction at Brookhaven National Laboratory. The considered process is sensitive to generalized parton distributions (GPDs), the understanding of which is a cornerstone of the EIC physics program. Our study marks a milestone in the preparation of DVCS measurements at EIC and provides a reference point for future analyses. In addition to presenting distributions of basic kinematic variables obtained with the latest ePIC design and simulation software, we examine the impact of future measurements on the understanding of nucleon tomography and DVCS Compton form factors, which are directly linked to GPDs. We also assess the impact of radiative corrections and background contribution arising from exclusive π 0 production.

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Sznajder, P. [National Centre for Nuclear Research (NCBJ)] (ORCID:000000022684803X), Aschenauer, E. C. [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000238565475), Batozskaya, V. [National Centre for Nuclear Research (NCBJ), Warsaw (Poland)] (ORCID:0000000310899200), Fazio, S. [Univ. of Calabria, Rende (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Cosenza, Rende (Italy)] (ORCID:0000000243211946), Jentsch, A. [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000173266991), Kim, J. [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:000000031018810X), Kumerički, K. [Univ. of Zagreb (Croatia)] (ORCID:0000000197585647), Moutarde, H. [Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France). Institut de Recherche sur les lois Fondamentales de l'Univers (IRFU); Univ. Paris-Saclay, Gif-sur-Yvette (France)] (ORCID:0000000331436213), Passek-K., K. [Ruđer Bošković Institute, Zagreb (Croatia)] (ORCID:0000000165203640), Sokhan, D. [Univ. of Glasgow, Scotland (United Kingdom)] (ORCID:0000000272045860), Spiesberger, H. [Johannes Gutenberg Univ., Mainz (Germany)] (ORCID:0000000216743736), Tezgin, K. [Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000194929512). 2025-08-15. Study of deeply virtual Compton scattering at the future electron-ion collider. https://doi.org/10.1103/fy8y-bjc9

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