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Nuclear Physics Seminars at BNL
Imaging Nuclei Through Exclusive Vector Meson Production
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US/Eastern
Small seminar room
Small seminar room
Description
One of the major goals of modern nuclear experiments is to study the distributions of gluons inside nuclei at high energy. A key measurement is exclusive vector meson (VM) production in diffractive electron-nucleus collisions (e+A). In coherent production, the gluon spatial distribution inside the nucleus can be obtained through a Fourier transform of the momentum transfer distribution (|t|).
This research aims to overcome the two main obstacles of the |t| measurement: limited precision arising from the momentum resolution of the outgoing electron and the overwhelming incoherent background. We demonstrate that by measuring the projected |t| distribution along the direction perpendicular to the electron scattering plane, the effect of the outgoing electron’s momentum resolution can be effectively mitigated, and the diffractive pattern is largely restored. Furthermore, we propose to measure the angular distribution of the VM’s decay daughters to statistically remove the incoherent background. This study provides a possible solution to overcome the challenges met by utilizing the diffractive VM production for imaging gluon distributions in nuclei at the Electron-Ion Collider (EIC)
Recording:
Organised by
Prithwish Tribedy
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