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Hydrodynamization in hybrid Bjorken flow attractors
Indexado
WoS WOS:001255973800002
Scopus SCOPUS_ID:85190164890
DOI 10.1007/JHEP04(2024)041
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Hybrid fluid models, consisting of two sectors with more weakly and more strongly self-interacting degrees of freedom coupled consistently as in the semi-holographic framework, have been shown to exhibit an attractor surface for Bjorken flow. Retaining only the simple viscid fluid descriptions of both sectors, we find that, on the attractor surface, the hydrodynamization times of both subsectors decrease with increasing total energy density at the respective point of hydrodynamization following a conformal scaling, reach their minimum values, and subsequently rise rapidly. The minimum values are obtained when the respective energy densities are of the order of the inverse of the dimensionful inter-system coupling. Restricting to attractor curves which can be matched to glasma models at a time set by the saturation scale for both p-p and Pb-Pb collisions, we find that the more weakly coupled sector hydrodynamizes much later, and the strongly coupled sector hydrodynamizes earlier in p-p collisions, since the total energy densities at the respective hydrodynamization times of these sectors fall inside and outside of the conformal window. This holds true also for phenomenologically relevant solutions that are significantly away from the attractor surface at the time we match to glasma models.

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Disciplinas de Investigación



WOS
Physics, Particles & Fields
Scopus
Sin Disciplinas
SciELO
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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Mitra, Toshali - Asia Pacific Center for Theoretical Physics (APCTP) - Corea del Sur
Institute of Mathematical Sciences India - India
Homi Bhabha National Institute - India
Postech - Corea del Sur
Inst Math Sci - India
Homi Bhabha Natl Inst - India
2 Mondkar, Sukrut - Homi Bhabha National Institute - India
Indian Institute of Technology Madras - India
Harish Chandra Research Institute - India
Homi Bhabha Natl Inst - India
Indian Inst Technol Madras - India
Harish Chandra Res Inst - India
3 Mukhopadhyay, Ayan - Indian Institute of Technology Madras - India
Pontificia Universidad Católica de Valparaíso - Chile
Indian Inst Technol Madras - India
4 Rebhan, Anton - Technische Universität Wien - Austria
Tech Univ Wien - Austria
5 Soloviev, Alexander - Technische Universität Wien - Austria
Univerza v Ljubljani - Eslovenia
Tech Univ Wien - Austria
Univ Ljubljana - Eslovenia

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Financiamiento



Fuente
Indian Institute of Technology Madras
Austrian Science Fund (FWF)
Austrian Science Fund
Department of Science and Technology, Ministry of Science and Technology, India
ECR award of the Department of Science and Technology of India
Ramanujan Fellowship
New Faculty Seed Grant of IIT Madras

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Agradecimientos



Agradecimiento
The authors would like to thank Michal Heller, Edmond Iancu and Jean-Yves Ollitrault for useful discussions. AM acknowledges support from the Ramanujan Fellowship and ECR award of the Department of Science and Technology of India and also the New Faculty Seed Grant of IIT Madras. AS is supported by the Austrian Science Fund (FWF), project no. J4406.
The authors would like to thank Michal Heller, Edmond Iancu and Jean-Yves Ollitrault for useful discussions. AM acknowledges support from the Ramanujan Fellowship and ECR award of the Department of Science and Technology of India and also the New Faculty Seed Grant of IIT Madras. AS is supported by the Austrian Science Fund (FWF), project no. J4406.

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