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

Sahoo, Baidyanath; Nandi, Basanta Kumar; Pujahari, Prabhat; Basu, Sumit; Pruneau, Claude

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

Mark

Sahoo, Baidyanath ; Nandi, Basanta Kumar ; Pujahari, Prabhat ; Basu, Sumit ^LU

and Pruneau, Claude (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 p_T ranges 0.2 < p_T≤ 2.0 GeV/c, 2.0 < p_T≤ 5.0 GeV/c, and 5.0 < p_T≤ 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_T, 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 p_T ranges 0.2 < p_T≤ 2.0 GeV/c, 2.0 < p_T≤ 5.0 GeV/c, and 5.0 < p_T≤ 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_T, 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 p_T dependent angular ordering of hadrons produced in jets.Both PYTHIA and HERWIG predict widths that decrease with increasing p_T.Widths extracted for P₂ correlators are typically significantly narrower than those of the R₂ counterparts [1].
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Please use this url to cite or link to this publication: https://lup.lub.lu.se/record/bbc4d352-2c9d-4ae8-b396-5cebdd40e58b

author

Sahoo, Baidyanath ; Nandi, Basanta Kumar ; Pujahari, Prabhat ; Basu, Sumit ^LU

and Pruneau, Claude

organization

Particle and nuclear physics

publishing date

2022

type

Chapter in Book/Report/Conference proceeding

publication status

published

subject

Subatomic Physics

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

1867-4941

0930-8989

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

2024-04-04 14:20:17

@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 &amp;lt; p<sub>T</sub>≤ 2.0 GeV/c, 2.0 &amp;lt; p<sub>T</sub>≤ 5.0 GeV/c, and 5.0 &amp;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         = {{1867-4941}},
  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}},
}

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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