5-12 July 2017
Venice, Italy
Europe/Zurich timezone
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Heavy ions at the Future Circular Collider

7 Jul 2017, 17:30
Room Mangano (Palazzo del Casinò)

Room Mangano

Palazzo del Casinò

Parallel Talk Heavy Ion Physics Heavy ion physics


Carlos Albert Salgado Lopez (Universidade de Santiago de Compostela (ES))


This presentation will review the projected accelerator performance and the physics opportunities for a heavy-ion programme at FCC-hh [1]. In addition, the status of the FCC-hh detector design studies will be discussed.

The FCC-hh Design Study will assess the feasibility and potential of a hadron collider with a centre-of-mass of 100 TeV for pp collisions.

Operating FCC-hh with heavy-ion beams would provide Pb-Pb and p-Pb collisions at center of mass energy of 39 and 63 TeV per NN pair, respectively. Current estimates indicate that a luminosity of about 30/nb could be integrated during a one-month Pb-Pb run, that is more than one order of magnitude above the maximum projections for the LHC. The FCC-hh beams could also be used for fixed-target collisions, either with beam extraction or gaseous target.

The Quark-Gluon Plasma state produced in Pb-Pb collisions at 39 TeV is expected to have initial temperature and energy density substantially larger than at LHC energy, a stronger flow field and freeze-out volume twice as large. The larger temperature could entail novel features, like e.g. abundant in-medium production of charm quarks. The latter could determine an increase in the number of degrees of freedom of the QGP and provide a new tool to study its temperature evolution. New, rarer, hard probes would be available, like boosted top quarks, which could give access to the time-evolution of the medium opacity.

The physics of high gluon densities at small Bjorken-x and the onset of saturation can be studied using pA, AA, and γA collisions. The FCC-hh will provide access to the region down to x<10−6 with perturbative probes like heavy quarks and quarkonia and to the region of high Q2 down to x∼10−4 with W, Z and top. High-energy photon-photon interactions in ultraperipheral AA collisions will also enable the study of very rare processes such as light-by-light scattering and γγ→W+W−.

[1] A. Dainese et al., Heavy ions at the Future Circular Collider, arXiv:1605.01389

Primary author

Carlos Albert Salgado Lopez (Universidade de Santiago de Compostela (ES))

Presentation Materials