Balance functions of (un)identified hadrons in Pb-Pb, p-Pb, and pp collisions at the LHC

  • Yazar/lar KARASU UYSAL, Ayben
    ALICE Collaboration
  • Yayın Türü Makale
  • Yayın Tarihi 2019
  • DOI Numarası 10.1016/j.nuclphysa.2018.09.022
  • Yayıncı ELSEVIER SCIENCE BV
  • Tek Biçim Adres http://hdl.handle.net/20.500.12498/4446

In ultrarelativistic heavy-ion collisions, correlations of particles with opposite quantum numbers provide insight into quark production mechanisms and time scales, collective motion, and re-scattering in the hadronic phase. The longitudinal and azimuthal widths of balance functions for charged kaons and charged pions are used to examine the two-wave quark production model proposed to explain quark-antiquark production within the QGP, which predicts a large increase in up and down quark pairs relative to strange quark pairs around the time of hadronization. Balance functions are also analyzed in small collision systems such as p-Pb and pp to study fragmentation effects and possible collective effects in high-multiplicity events. A comprehensive set of balance functions has been measured using the ALICE detector, including results for unidentified hadrons in Pb-Pb and p-Pb collisions at root s(NN) = 5.02 TeV, for charged pions in Pb-Pb collisions at root s(NN) = 2.76 TeV, p-Pb collisions at root s(NN) = 5.02 TeV and pp collisions at root s = 7 TeV, and for charged kaons in Pb-Pb collisions at root s(NN) = 2.76 TeV. The first balance function yield results are also presented.

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ISSN
(dc.identifier.issn)
0375-9474
Yayıncı
(dc.publisher)
ELSEVIER SCIENCE BV
Eser Adı
(dc.title)
Balance functions of (un)identified hadrons in Pb-Pb, p-Pb, and pp collisions at the LHC
Özet
(dc.description.abstract)
In ultrarelativistic heavy-ion collisions, correlations of particles with opposite quantum numbers provide insight into quark production mechanisms and time scales, collective motion, and re-scattering in the hadronic phase. The longitudinal and azimuthal widths of balance functions for charged kaons and charged pions are used to examine the two-wave quark production model proposed to explain quark-antiquark production within the QGP, which predicts a large increase in up and down quark pairs relative to strange quark pairs around the time of hadronization. Balance functions are also analyzed in small collision systems such as p-Pb and pp to study fragmentation effects and possible collective effects in high-multiplicity events. A comprehensive set of balance functions has been measured using the ALICE detector, including results for unidentified hadrons in Pb-Pb and p-Pb collisions at root s(NN) = 5.02 TeV, for charged pions in Pb-Pb collisions at root s(NN) = 2.76 TeV, p-Pb collisions at root s(NN) = 5.02 TeV and pp collisions at root s = 7 TeV, and for charged kaons in Pb-Pb collisions at root s(NN) = 2.76 TeV. The first balance function yield results are also presented.
Yayın Tarihi
(dc.date.issued)
2019
Kayıt Giriş Tarihi
(dc.date.accessioned)
2020-08-07T14:18:06Z
Açık Erişim tarihi
(dc.date.available)
2020-08-07T14:18:06Z
Yayın Dili
(dc.language.iso)
eng
Yayın Türü
(dc.type)
Makale
Yazar/lar
(dc.contributor.author)
KARASU UYSAL, Ayben
Yazar/lar
(dc.contributor.author)
ALICE Collaboration
Tek Biçim Adres
(dc.identifier.uri)
http://hdl.handle.net/20.500.12498/4446
DOI Numarası
(dc.identifier.doi)
10.1016/j.nuclphysa.2018.09.022
Atıf Dizini
(dc.source.database)
Wos
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