Acharya S., Adamová D., Adler A., Adolfsson J., Aglieri Rinella G., Agnello M., ...Daha Fazla
JOURNAL OF HIGH ENERGY PHYSICS, sa.5, 2021 (SCI-Expanded, Scopus)
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Yayın Türü:
Makale / Tam Makale
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Basım Tarihi:
2021
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Doi Numarası:
10.1007/jhep05(2021)290
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Dergi Adı:
JOURNAL OF HIGH ENERGY PHYSICS
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Derginin Tarandığı İndeksler:
Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, INSPEC, zbMATH, Directory of Open Access Journals
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Anahtar Kelimeler:
Heavy Ion Experiments
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Açık Arşiv Koleksiyonu:
AVESİS Açık Erişim Koleksiyonu
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Yıldız Teknik Üniversitesi Adresli:
Hayır
Özet
Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-(eta similar to 0) and long-range (1.6 < || < 1.8) in pseudorapidity are extracted on the near-side ( 0). They are reported as a function of transverse momentum (p(T)) in the range 1 < p(T)< 4 GeV/c. Furthermore, the event-scale dependence is studied for the first time by requiring the presence of high-p(T) leading particles or jets for varying p(T) thresholds. The results demonstrate that the long-range "ridge" yield, possibly related to the collective behavior of the system, is present in events with high-p(T) processes as well. The magnitudes of the short- and long-range yields are found to grow with the event scale. The results are compared to EPOS LHC and PYTHIA 8 calculations, with and without string-shoving interactions. It is found that while both models describe the qualitative trends in the data, calculations from EPOS LHC show a better quantitative agreement for the p(T) dependency, while overestimating the event-scale dependency.