Simulation Studies of R2(Δ η, Δ ϕ) and P2(Δ η, Δ ϕ) Correlation Functions in pp Collisions with the PYTHIA and HERWIG Models
(2022) 24th DAE-BRNS High Energy Physics Symposium, 2020 In Springer Proceedings in Physics 277. p.349-352- Abstract
We presented a study of charge-independent (CI) and charge-dependent (CD) two-particle differential number correlation functions R2 and transverse momentum correlation functions P2 in pp collisions at s=2.76 TeV with the PYTHIA and HERWIG models.Calculations were presented for unidentified hadrons in three pT ranges 0.2 < pT≤ 2.0 GeV/c, 2.0 < pT≤ 5.0 GeV/c, and 5.0 < pT≤ 30.0 GeV/c.PYTHIA and HERWIG both qualitatively reproduce the near-side peak and away-side ridge correlation features reported by experiments.At low pT, both models produce narrower near-side peaks in P2 correlations than in R2 as reported by the ALICE... (More)
We presented a study of charge-independent (CI) and charge-dependent (CD) two-particle differential number correlation functions R2 and transverse momentum correlation functions P2 in pp collisions at s=2.76 TeV with the PYTHIA and HERWIG models.Calculations were presented for unidentified hadrons in three pT ranges 0.2 < pT≤ 2.0 GeV/c, 2.0 < pT≤ 5.0 GeV/c, and 5.0 < pT≤ 30.0 GeV/c.PYTHIA and HERWIG both qualitatively reproduce the near-side peak and away-side ridge correlation features reported by experiments.At low pT, both models produce narrower near-side peaks in P2 correlations than in R2 as reported by the ALICE collaboration in p–Pb and Pb–Pb collisions.This suggests that the narrower shape of the P2 near-side peak is largely determined by the pT dependent angular ordering of hadrons produced in jets.Both PYTHIA and HERWIG predict widths that decrease with increasing pT.Widths extracted for P2 correlators are typically significantly narrower than those of the R2 counterparts [1].
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- author
- Sahoo, Baidyanath
; Nandi, Basanta Kumar
; Pujahari, Prabhat
; Basu, Sumit
LU
and Pruneau, Claude
- organization
- publishing date
- 2022
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings of the 24th DAE-BRNS High Energy Physics Symposium, 2020
- series title
- Springer Proceedings in Physics
- editor
- Mohanty, Bedangadas ; Swain, Sanjay Kumar ; Singh, Ranbir and Kashyap, Varchaswi K.
- volume
- 277
- pages
- 4 pages
- publisher
- Springer Science and Business Media B.V.
- conference name
- 24th DAE-BRNS High Energy Physics Symposium, 2020
- conference location
- Jatni, India
- conference dates
- 2020-12-14 - 2020-12-18
- external identifiers
-
- scopus:85140732975
- ISSN
- 0930-8989
- 1867-4941
- ISBN
- 9789811923531
- DOI
- 10.1007/978-981-19-2354-8_63
- language
- English
- LU publication?
- yes
- id
- bbc4d352-2c9d-4ae8-b396-5cebdd40e58b
- date added to LUP
- 2022-12-19 13:53:09
- date last changed
- 2025-02-07 22:25:56
@inproceedings{bbc4d352-2c9d-4ae8-b396-5cebdd40e58b, abstract = {{<p>We presented a study of charge-independent (CI) and charge-dependent (CD) two-particle differential number correlation functions R<sub>2</sub> and transverse momentum correlation functions P<sub>2</sub> in pp collisions at s=2.76 TeV with the PYTHIA and HERWIG models.Calculations were presented for unidentified hadrons in three p<sub>T</sub> ranges 0.2 &lt; p<sub>T</sub>≤ 2.0 GeV/c, 2.0 &lt; p<sub>T</sub>≤ 5.0 GeV/c, and 5.0 &lt; p<sub>T</sub>≤ 30.0 GeV/c.PYTHIA and HERWIG both qualitatively reproduce the near-side peak and away-side ridge correlation features reported by experiments.At low p<sub>T</sub>, both models produce narrower near-side peaks in P<sub>2</sub> correlations than in R<sub>2</sub> as reported by the ALICE collaboration in p–Pb and Pb–Pb collisions.This suggests that the narrower shape of the P<sub>2</sub> near-side peak is largely determined by the p<sub>T</sub> dependent angular ordering of hadrons produced in jets.Both PYTHIA and HERWIG predict widths that decrease with increasing p<sub>T</sub>.Widths extracted for P<sub>2</sub> correlators are typically significantly narrower than those of the R<sub>2</sub> counterparts [1].</p>}}, author = {{Sahoo, Baidyanath and Nandi, Basanta Kumar and Pujahari, Prabhat and Basu, Sumit and Pruneau, Claude}}, booktitle = {{Proceedings of the 24th DAE-BRNS High Energy Physics Symposium, 2020}}, editor = {{Mohanty, Bedangadas and Swain, Sanjay Kumar and Singh, Ranbir and Kashyap, Varchaswi K.}}, isbn = {{9789811923531}}, issn = {{0930-8989}}, language = {{eng}}, pages = {{349--352}}, publisher = {{Springer Science and Business Media B.V.}}, series = {{Springer Proceedings in Physics}}, title = {{Simulation Studies of R<sub>2</sub>(Δ η, Δ ϕ) and P<sub>2</sub>(Δ η, Δ ϕ) Correlation Functions in pp Collisions with the PYTHIA and HERWIG Models}}, url = {{http://dx.doi.org/10.1007/978-981-19-2354-8_63}}, doi = {{10.1007/978-981-19-2354-8_63}}, volume = {{277}}, year = {{2022}}, }