Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector
The first measurement of longitudinal decorrelations of harmonic flow amplitudes v<sub>n</sub> for n = 2-4 in Xe + Xe collisions at √s<sub>NN</sub> = 5.44 TeV is obtained using 3 μb⁻¹ of data with the ATLAS detector at the LHC. The decorrelation signal for v₃ and v₄ is foun...
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| Autores principales: | , , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2021
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/142274 |
| Aporte de: |
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I19-R120-10915-142274 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física Collective flow Particle correlations & fluctuations Quark-gluon plasma Relativistic heavy-ion collisions |
| spellingShingle |
Ciencias Exactas Física Collective flow Particle correlations & fluctuations Quark-gluon plasma Relativistic heavy-ion collisions Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Orellana, Gonzalo Enrique Wahlberg, Hernán Pablo The ATLAS Collaboration Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector |
| topic_facet |
Ciencias Exactas Física Collective flow Particle correlations & fluctuations Quark-gluon plasma Relativistic heavy-ion collisions |
| description |
The first measurement of longitudinal decorrelations of harmonic flow amplitudes v<sub>n</sub> for n = 2-4 in Xe + Xe collisions at √s<sub>NN</sub> = 5.44 TeV is obtained using 3 μb⁻¹ of data with the ATLAS detector at the LHC. The decorrelation signal for v₃ and v₄ is found to be nearly independent of collision centrality and transverse momentum (p<sub>T</sub>) requirements on final-state particles, but for v₂ a strong centrality and p<sub>T</sub> dependence is seen. When compared with the results from Pb + Pb collisions at √s<sub>NN</sub> = 5.02 TeV, the longitudinal decorrelation signal in midcentral Xe + Xe collisions is found to be larger for v₂, but smaller for v₃. Current hydrodynamic models reproduce the ratios of the v<sub>n</sub> measured in Xe + Xe collisions to those in Pb + Pb collisions but fail to describe the magnitudes and trends of the ratios of longitudinal flow decorrelations between Xe + Xe and Pb + Pb. The results on the system-size dependence provide new insights and an important lever arm to separate effects of the longitudinal structure of the initial state from other early and late time effects in heavy-ion collisions. |
| format |
Articulo Articulo |
| author |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Orellana, Gonzalo Enrique Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_facet |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Orellana, Gonzalo Enrique Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_sort |
Alonso, Francisco |
| title |
Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector |
| title_short |
Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector |
| title_full |
Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector |
| title_fullStr |
Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector |
| title_full_unstemmed |
Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector |
| title_sort |
longitudinal flow decorrelations in xe + xe collisions at √s<sub>nn</sub> = 5.44 tev with the atlas detector |
| publishDate |
2021 |
| url |
http://sedici.unlp.edu.ar/handle/10915/142274 |
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Repositorios |
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