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Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap / Kurkela, Aleksi (Stavanger U.) ; Rajagopal, Krishna (MIT, Cambridge, CTP ; CERN) ; Steinhorst, Rachel (MIT, Cambridge, CTP)
We demonstrate that astrophysical constraints on the dense-matter equation of state place an upper bound on the color-superconducting gap in dense matter above the transition from nuclear matter to quark matter. Pairing effects in the color-flavor locked (CFL) quark matter phase increase the pressure at high density, and if this effect is sufficiently large then the requirements of causality and mechanical stability make it impossible to reach such a pressure in a way that is consistent with what is known at lower densities. [...]
arXiv:2401.16253; MIT-CTP/5671.- 2024-06-24 - 8 p. - Published in : Phys. Rev. Lett. 132 (2024) 262701 Fulltext: PDF;

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QCD in the Cores of Neutron Stars / Kurkela, Eero Aleksi (speaker)
Gravity meets QCD in a very concrete way in neutron stars. Their cores contain ultra-dense hadronic matter whose densities reach as high as those realized in ultrarelativistic heavy-ion collisions at the LHC. [...]
2023 - 2031. Conferences, Workshops & Schools; QCD Meets Gravity 2023 External links: Talk details; Event details In : QCD Meets Gravity 2023

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Matching the non-equilibrium initial stage of heavy ion collisions to hydrodynamics with QCD kinetic theory / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (U. Heidelberg, ITP) ; Paquet, Jean-Francois (Duke U.) ; Schlichting, Sören (Bielefeld U.) ; Teaney, Derek (SUNY, Stony Brook)
In the collision of nuclei at high energies the produced matter reinteracts and forms a plasma which ultimately equilibrates and exhibits collective hydrodynamic flow. While a general theory of the equilibration process has been outlined previously, there were no practical frameworks to smoothly connect the early gluon production in classical field simulations with hydrodynamic simulations of the late time plasma expansion. [...]
SISSA, 2019 - 10 p. - Published in : PoS Confinement2018 (2019) 152 Fulltext: PDF;
In : 13th Quark Confinement and the Hadron Spectrum, Maynooth, Ireland, 31 Jul - 6 Aug 2018, pp.152

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Initial conditions for heavy ion collisions with QCD kinetic theory / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (Heidelberg U.) ; Paquet, Jean-Francois (Duke U.) ; Schlichting, Soeren (Bielefeld U.) ; Teaney, Derek (YITP, Stony Brook)
We employ the leading order QCD kinetic theory to describe a consistent matching betweenthe initial stage of a heavy ion collision and the subsequent hydrodynamic evolution. We usethe linearized kinetic response functions around the non-equilibirum longitudinally expandingbackground to map initial energy and momentum perturbations to the energy momentum tensorat hydrodynamic initialization time τ hydro . [...]
SISSA, 2018 - 6 p. - Published in : PoS High-pT2017 (2019) 001 Fulltext: PDF;
In : 12th International workshop on high-pT physics in the RHIC/LHC era (HPT), Bergen, Norvege, 2 - 5 Oct 2017, pp.001

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Fundamental Physics in the Gravitational-Wave Era / Bernitt, Sonja (Jena U.) ; Bertone, Gianfranco (Amsterdam U.) ; Cardoso, Vitor (IST, Lisbon (main)) ; Emparan, Roberto (ICREA, Barcelona) ; Galatyuk, Tetyana (Darmstadt, GSI ; Darmstadt, Tech. Hochsch.) ; Kurkela, Aleksi (CERN) ; Larsen, Ann-Cecilie (Oslo U.) ; Nahrgang, Marlene (SUBATECH, Nantes) ; Nissanke, Samaya (Amsterdam U.) ; Pani, Paolo (Rome U.) et al.
Recording a GW […] has never been a big motivation for LIGO, the motivation has always been to open a new window to the Universe.—Kip Thorne (BBC interview, 2016)The landmark detection of gravitati....
2022 - 4 p. - Published in : Nucl. Phys. News 32 (2022) 16-19

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Collective flow in single-hit QCD kinetic theory / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (CERN) ; Törnkvist, Robin (Lund U., Dept. Theor. Phys.)
Motivated by recent interest in collectivity in small systems, we calculate the harmonic flow response to initial geometry deformations within weakly coupled QCD kinetic theory using the first correction to the free-streaming background. We derive a parametric scaling formula that relates harmonic flow in systems of different sizes and different generic initial gluon distributions. [...]
arXiv:2104.08179; CERN-TH-2021-056.- 2021-11-29 - 29 p. - Published in : JHEP 2111 (2021) 216 Fulltext: 2104.08179 - PDF; document - PDF;

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Discovering partonic rescattering in light nucleus collisions / Kurkela, Eero Aleksi (speaker) (University of Stavanger (NO))
Medium induced parton energy loss is not conclusively established neither in very peripheral heavy-ion collisions nor in proton-ion collisions. However, the standard interpretation of azimuthal momentum anisotropies in theses systems implies some partonic rescattering [...]
2021 - 0:21:58. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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Predicting parton energy loss in small collision systems / Huss, Alexander (CERN) ; Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (CERN) ; Paatelainen, Risto (CERN) ; van der Schee, Wilke (CERN) ; Wiedemann, Urs Achim (CERN)
Medium induced parton energy loss is not conclusively established neither in very peripheral heavy-ion collisions nor in proton-ion collisions. However, the standard interpretation of azimuthal momentum anisotropies in theses systems implies some partonic rescattering. [...]
arXiv:2007.13758; CERN-TH-2020-127.- 2021-05-12 - 18 p. - Published in : Phys. Rev. C 103 (2021) 054903 Article from SCOAP3: PDF; Fulltext: PDF;

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Discovering partonic rescattering in light nucleus collisions / Huss, Alexander (CERN) ; Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (CERN) ; Paatelainen, Risto (CERN) ; van der Schee, Wilke (CERN) ; Wiedemann, Urs Achim (CERN)
We demonstrate that oxygen-oxygen (OO) collisions at the LHC provide unprecedented sensitivity to parton energy loss in a system whose size is comparable to those created in very peripheral heavy-ion collisions. With leading and next-to-leading order calculations of nuclear modification factors, we show that the baseline in the absence of partonic rescattering is known with up to 2% theoretical accuracy in inclusive OO collisions [...]
arXiv:2007.13754; CERN-TH-2020-126.- 2021-05-12 - 6 p. - Published in : Phys. Rev. Lett. 126 (2021) 192301 Article from SCOAP3: PDF; Fulltext: PDF;

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Hydrodynamization in systems with detailed transverse profiles / Kurkela, Aleksi (CERN ; Stavanger U.) ; Taghavi, Seyed Farid (Munich, Tech. U.) ; Wiedemann, Urs Achim (CERN) ; Wu, Bin (CERN)
The observation of fluid-like behavior in nucleus-nucleus, proton-nucleus and high-multiplicity proton-proton collisions motivates systematic studies of how different measurements approach their fluid-dynamic limit. We have developed numerical methods to solve the ultra-relativistic Boltzmann equation for systems of arbitrary size and transverse geometry. [...]
arXiv:2007.06851; CERN-TH-2020-118.- 2020-12-10 - 8 p. - Published in : Phys. Lett. B 811 (2020) 135901 Article from SCOAP3: PDF; Fulltext: PDF;

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See also: similar author names
7	Kurkela, A
10	Kurkela, A.

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