• Medientyp: E-Artikel
  • Titel: Two-particle Bose–Einstein correlations in $${ pp }$$ collisions at $$\mathbf {\sqrt{s} = 13}$$ TeV measured with the ATLAS detector at the LHC
  • Beteiligte: Aad, G.; Abbott, B.; Abbott, D. C.; Abed Abud, A.; Abeling, K.; Abhayasinghe, D. K.; Abidi, S. H.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Acharya, B. S.; Achkar, B.; Adachi, S.; Adam, L.; Adam Bourdarios, C.; Adamczyk, L.; Adamek, L.; Adelman, J.; Adersberger, M.; Adiguzel, A.; Adorni, S.; Adye, T.; [...]
  • Erschienen: Springer Science and Business Media LLC, 2022
  • Erschienen in: The European Physical Journal C, 82 (2022) 7
  • Sprache: Englisch
  • DOI: 10.1140/epjc/s10052-022-10472-0
  • ISSN: 1434-6052
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: AbstractThis paper presents studies of Bose–Einstein correlations (BEC) in proton–proton collisions at a centre-of-mass energy of 13 TeV, using data from the ATLAS detector at the CERN Large Hadron Collider. Data were collected in a special low-luminosity configuration with a minimum-bias trigger and a high-multiplicity track trigger, accumulating integrated luminosities of 151 $$\upmu $$ μ b$$^{-1}$$ - 1 and 8.4 nb$$^{-1}$$ - 1 , respectively. The BEC are measured for pairs of like-sign charged particles, each with $$|\eta | < 2.5$$ | η | < 2.5 , for two kinematic ranges: the first with particle $$p_{\mathrm {T}} > 100$$ p T > 100  MeV and the second with particle $$p_{\mathrm {T}} > 500$$ p T > 500  MeV. The BEC parameters, characterizing the source radius and particle correlation strength, are investigated as functions of charged-particle multiplicity (up to 300) and average transverse momentum of the pair (up to 1.5 GeV). The double-differential dependence on charged-particle multiplicity and average transverse momentum of the pair is also studied. The BEC radius is found to be independent of the charged-particle multiplicity for high charged-particle multiplicity (above 100), confirming a previous observation at lower energy. This saturation occurs independent of the transverse momentum of the pair.
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