Event-shape- and multiplicity-dependent identified particle production in pp collisions at 13 TeV with ALICE at the LHC

  • Yazar/lar KARASU UYSAL, Ayben
    ALICE Collaboration
  • Yayın Türü Makale
  • Yayın Tarihi 2019
  • DOI Numarası 10.1016/j.nuclphysa.2018.08.021
  • Yayıncı ELSEVIER SCIENCE BV
  • Tek Biçim Adres http://hdl.handle.net/20.500.12498/4456

Multiplicity-dependent measurements of identified particle production led to the discovery of collective-like behavior in pp collisions at the LHC. Better understanding of the effects attributed to well-understood physics, like multiple hard scatterings, is required to establish whether this behaviour is truly collective in origin. Experimentally, those effects can be controlled using event shapes, like transverse spherocity, which allows the classification of pp collisions either as jetty or isotropic events. The transverse momentum (p(T)) spectra of light-flavor hadrons in pp collisions measured over a broad range provide important input to study particle production mechanisms in the soft and hard scattering regimes of the QCD. In this work, they are used to perform a comprehensive study as a function of the event multiplicity, collision energy, and event shapes. The proton-to-pion and kaon-to-pion particle ratios as a function of p(T) are also reported and the results compared to QCD-inspired models.

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ISSN
(dc.identifier.issn)
0375-9474
Yayıncı
(dc.publisher)
ELSEVIER SCIENCE BV
Eser Adı
(dc.title)
Event-shape- and multiplicity-dependent identified particle production in pp collisions at 13 TeV with ALICE at the LHC
Özet
(dc.description.abstract)
Multiplicity-dependent measurements of identified particle production led to the discovery of collective-like behavior in pp collisions at the LHC. Better understanding of the effects attributed to well-understood physics, like multiple hard scatterings, is required to establish whether this behaviour is truly collective in origin. Experimentally, those effects can be controlled using event shapes, like transverse spherocity, which allows the classification of pp collisions either as jetty or isotropic events. The transverse momentum (p(T)) spectra of light-flavor hadrons in pp collisions measured over a broad range provide important input to study particle production mechanisms in the soft and hard scattering regimes of the QCD. In this work, they are used to perform a comprehensive study as a function of the event multiplicity, collision energy, and event shapes. The proton-to-pion and kaon-to-pion particle ratios as a function of p(T) are also reported and the results compared to QCD-inspired models.
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
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/20.500.12498/4456
DOI Numarası
(dc.identifier.doi)
10.1016/j.nuclphysa.2018.08.021
Atıf Dizini
(dc.source.database)
Wos
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