Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider
Abstract
:1. Introduction
2. A New Physics Regime
3. The Electron Ion Collider
3.1. EIC Requirements
- Large luminosity (–10),
- Center of mass energy (30–140) GeV,
- Hadron and electron beams with high longitudinal spin polarization,
- Ion beams from deuteron to the heaviest stable nuclei,
- Large detector acceptance, in particular for small angle scattered hadrons,
- Optimized high luminosity and high acceptance running modes.
3.2. EIC Designs
- New electron injector,
- 5–18 GeV electron energy,
- Energy of heavy ions up to 100 GeV/u,
- : 20–140 GeV,
- Peak luminosity of ∼0.4 × cm sA as a base design and /A achievable with strong cooling.
- New hadron injector,
- A “figure-8” layout for the booster and collider rings which preserves spin polarization,
- 3–12 GeV electron energy,
- Energy of heavy ions up to 80 GeV/u that could be upgraded to 160 GeV/u,
- : 20–100 GeV that could be upgraded to 140 GeV,
- Average luminosity per run /A.
4. Physics at the Energy Frontier: Selection of Recent Results
4.1. QGP Onset and Strangeness Enhancement
4.2. Heavy Flavor vs. Multiplicity
4.3. Hydrodynamic Flow
4.4. Nuclear Modification Factor and Energy Loss in the Medium
4.5. Nuclear Parton Distribution Functions
5. Conclusions
Funding
Acknowledgments
Conflicts of Interest
References
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1 | While lattice calculations address these problems directly, results emerging from the lattice typically require large time scales. The accuracy of the obtained results is largely correlated with the amount of computing power allocated to pursuing these calculations. |
2 | Multiplicity is the number of charged particles in the final state. In pPb and PbPb, this quantity is related to the centrality of the collision. |
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Morreale, A. Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider. Universe 2019, 5, 98. https://doi.org/10.3390/universe5050098
Morreale A. Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider. Universe. 2019; 5(5):98. https://doi.org/10.3390/universe5050098
Chicago/Turabian StyleMorreale, Astrid. 2019. "Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider" Universe 5, no. 5: 98. https://doi.org/10.3390/universe5050098