One contribution of 21 to a Theo Murphy meeting issue 'Cosmic-ray muography'.

The proposed high-luminosity high-energy Electron-Ion Collider (EIC) will provide a clean environment to precisely study several fundamental questions in the fields of high-energy and nuclear physics. A low material budget and high granularity silicon vertex/tracking detector is critical to carry out a series of hadron and jet measurements at the future EIC especially for the heavy flavor product reconstruction or tagging. The conceptual design of a proposed forward silicon tracking detector with the pseudorapidity coverage from 1.2 to 3.5 has been developed in integration with different magnet options and the other EIC detector sub-systems. The tracking performance of this detector enables precise heavy flavor hadron and jet measurements in the hadron beam going direction. The detector R&D for the proposed silicon technology candidates: Low Gain Avalanche Diode (LGAD) and radiation hard depleted Monolithic Active Pixel Sensor (MALTA), which can provide good spatial and timing resolutions, is underway. Bench test results of the LGAD and MALTA prototype sensors will be discussed.

PHENIX results on system size dependence of J/ψ nuclear modification in p, d, 3 He+A collisions at √ s NN =200 GeV J. Matthew Durham, for the PHENIX Collaboration *

The future Electron-Ion Collider (EIC) will utilize a series of high-luminosity high-energy elec-tron+proton (𝑒 + 𝑝) and electron+nucleus (𝑒 + 𝐴) collisions to explore the inner structure of nucleon and nucleus and the matter formation process. Heavy flavor hadron and jet measurements at the EIC will play an essential role in determining the nucleon/nucleus parton distribution function and heavy quark hadronization process in not well constrained kinematic regions. A high granularity and low material budget forward silicon tracker will enable precise forward heavy flavor measurements at the EIC, which have enhanced sensitivities to access these kinematic extremes. A Forward Silicon Tracker (FST) detector is under design and R&D for the EIC. Two advanced silicon technologies, the Depleted Monolithic Active Pixel Sensor (DMAPS) and the AC coupled Low Gain Avalanche Diode (AC-LGAD), which can provide fine spatial and timing resolutions, have been considered as candidates for the EIC silicon tracking detector. Progresses and results about the FST conceptual design and ongoing DMAPS and LGAD detector R&D will be presented. The path towards an integrated EIC detector will be discussed as well.

The study of the bound states of heavy quarks in a QCD medium is an important foundation of heavy ion physics. Two major experiments at the Relativistic Heavy Ion Collider (PHENIX and STAR) and four major experiments at the Large Hadron Collider (ALICE, ATLAS, CMS, and LHCb) are all producing new results and refining previous observations with unprecedented precision and kinematic reach. In addition, measurements of the interactions of exotic heavy quark states with a QCD medium are becoming accessible for the first time. The proceedings discuss new results and remaining puzzles in quarkonium measurements, the first experimental results on exotic hadrons in the QCD medium, and give a brief outlook on future facilities.