The evolution of the near-side peak in two-particle number and transverse momentum correlations in Pb-Pb collisions from ALICE

  • Yazar/lar KARASU UYSAL, Ayben
    ALICE Collaboration
  • Yayın Türü Makale
  • Yayın Tarihi 2019
  • DOI Numarası 10.1016/j.nuclphysa.2018.09.055
  • Yayıncı ELSEVIER SCIENCE BV
  • Tek Biçim Adres http://hdl.handle.net/20.500.12498/4448

Two-particle number and transverse momentum correlations are powerful tools for studying the medium produced in heavy-ion collisions. Correlations in the angular separation of pairs of hadrons can provide information on the medium transport characteristics. In particular, the transverse momentum correlations are sensitive to momentum currents, and provide information about the system life time, the shear viscosity over entropy density ratio (eta/s) and the system relaxation time (tau(pi)). Furthermore, the interaction of the jets produced in the initial stages of a collision can be studied using number correlations, by observing the medium-induced modification of the near-side jet peak. Measurements of both sets of correlations from Pb-Pb collisions are reported as a function of centrality. Theoretical interpretations and results from Monte Carlo generators are then confronted with the experimental data.

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Eser Adı
(dc.title)
The evolution of the near-side peak in two-particle number and transverse momentum correlations in Pb-Pb collisions from ALICE
Yayın Türü
(dc.type)
Makale
Yazar/lar
(dc.contributor.author)
KARASU UYSAL, Ayben
Yazar/lar
(dc.contributor.author)
ALICE Collaboration
DOI Numarası
(dc.identifier.doi)
10.1016/j.nuclphysa.2018.09.055
Atıf Dizini
(dc.source.database)
Wos
Yayıncı
(dc.publisher)
ELSEVIER SCIENCE BV
Yayın Tarihi
(dc.date.issued)
2019
Kayıt Giriş Tarihi
(dc.date.accessioned)
2020-08-07T14:18:07Z
Açık Erişim tarihi
(dc.date.available)
2020-08-07T14:18:07Z
Kaynak
(dc.source)
NUCLEAR PHYSICS A
ISSN
(dc.identifier.issn)
0375-9474
Özet
(dc.description.abstract)
Two-particle number and transverse momentum correlations are powerful tools for studying the medium produced in heavy-ion collisions. Correlations in the angular separation of pairs of hadrons can provide information on the medium transport characteristics. In particular, the transverse momentum correlations are sensitive to momentum currents, and provide information about the system life time, the shear viscosity over entropy density ratio (eta/s) and the system relaxation time (tau(pi)). Furthermore, the interaction of the jets produced in the initial stages of a collision can be studied using number correlations, by observing the medium-induced modification of the near-side jet peak. Measurements of both sets of correlations from Pb-Pb collisions are reported as a function of centrality. Theoretical interpretations and results from Monte Carlo generators are then confronted with the experimental data.
Yayın Dili
(dc.language.iso)
en
Tek Biçim Adres
(dc.identifier.uri)
http://hdl.handle.net/20.500.12498/4448
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