Mar 19 – 23, 2018
Other Institutes
Europe/Berlin timezone

Geometry tagging with heavy ions at the EIC

Mar 20, 2018, 4:05 PM


Dr Pawel Nadel-Turonski (Stony Brook University)


The Electron-Ion Collider (EIC) will provide the first opportunity to study electron-nucleus (eA) scattering at high energies. For heavy ions, key measurements include QCD at high gluon densities and the onset of saturation, mapping of the transverse spatial gluon distribution through coherent diffraction, and parton/hadron propagation in cold nuclear matter. All these measurements greatly benefit from, or in the case of coherent diffraction critically rely on, an excellent capability to detect the outgoing nuclear fragments (geometry tagging). Knowing the path length traversed inside the nucleus allows a better understanding of parton propagation, and being able to select central collisions at low-x gives a significant boost to the nuclear thickness (and effective gluon density) beyond the average value for a heavy nucleus. It has also been shown that for coherent diffraction, a sufficient suppression of the large incoherent background can be achieved if, in addition to emitted nucleons and light ions, also the residual nucleus can be detected (including A-1 nuclei). This talk will present the physics opportunities and detection requirements for geometry tagging in eA at an EIC, and discuss some specific results from a project on this topic funded through JLab LDRD.

Primary author

Dr Pawel Nadel-Turonski (Stony Brook University)


Mark Baker (University of Surrey) Vasiliy Morozov (Jefferson Lab) Alberto Accardi (Hampton U. and Jefferson Lab) William King Brooks (Federico Santa Maria Technical University (CL)) Raphael Dupre (IPN Orsay) Kawtar Hafidi (Argonne National Lab) Charles Hyde (Old Dominion University) Kijun Park (Old Dominion University) Tobias Toll Liang Zheng (China University of Geosciences) Mr Caleb Fogler Mr Mathieu Ehrhart (IPN Orsay) Mr Stukes James Dr Guohui Wei (Jefferson Lab) Dr Amy Sy (Jefferson Lab)

Presentation materials