One fluid might not rule them all
Research output: Contribution to journal › Conference article › Research › peer-review
In this proceeding, we present our recent investigations on hydrodynamic collectivity in high-multiplicity proton-proton collisions at root s = 13 TeV using the iEBE-VISHNU hybrid model with different initial condition models, called HIJING, super-MC and TRENTo. We find that with carefully tuned parameters, hydrodynamic simulations can give reasonable descriptions of the measured two-particle correlations. However, multi-particle single and mixed harmonics cumulants can not be described by hydrodynamics with these three initial conditions, even for the signs in a few cases. Further studies show that the non-linear response plays an important role in the hydrodynamic expansion of the p-p systems. Such an effect can change c(2){4} from a negative value in the initial state to a positive value in the final state. The failure of the hydrodynamic description of multi-particle cumulant triggers the questions on whether the hydrodynamics can rule all collision systems, including p-p collisions at the LHC.
Original language | English |
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Article number | 121908 |
Journal | Nuclear Physics A |
Volume | 1005 |
Number of pages | 4 |
ISSN | 0375-9474 |
DOIs | |
Publication status | Published - 1 Jan 2021 |
Event | 28th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter) - Wuhan Duration: 4 Nov 2019 → 9 Nov 2019 |
Conference
Conference | 28th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter) |
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City | Wuhan |
Period | 04/11/2019 → 09/11/2019 |
- hydrodynamics, flow, proton-proton collisions, COLLECTIVITY, COLLISIONS
Research areas
Links
- https://arxiv.org/pdf/2005.02684.pdf
Submitted manuscript
ID: 256623147