Benchmarking the Non-flow Contributions to the Elliptic Flow Parameter ($v_{_2}$) in Proton-Proton Collisions
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866909331121766400 |
|---|---|
| author | Abdulhamid, M. I. Hamed, A. M. Osama, E. A. Rateb, M. Sadoun, N. K. Sawy, F. H. |
| author_facet | Abdulhamid, M. I. Hamed, A. M. Osama, E. A. Rateb, M. Sadoun, N. K. Sawy, F. H. |
| contents | This manuscript reports on the elliptic flow parameter, $v_{_2}$, in proton-proton (p-p) collisions using PYTHIA8 event generator simulations. The typical Event Plane ($EP$) method $v_{_2}$($EP$) as the one used for the real data analysis has been adopted to measure the $v_{_2}$ of particles composed of different quark flavors, and produced at mid-pseudorapidity $|η| \le 1$ at center-of-mass energy $\sqrt{s}$ = 200 GeV and $\sqrt{s}$ = 13 TeV. The event plane has been constructed using the soft charged particles with transverse momentum ($p{_{_T}} < $ 2 GeV/c) produced in various $η$ ranges. The pseudorapidity gap technique ($Δη$) between the particle of interest and the soft charged particles contributed to the event plane constructions has been utilized to benchmark the non-flow contributions. The $v_{_2}^{π^{^\pm,}π^{^0}}$, $v_{_2}^{J/ψ,Υ, K, D, B}$, and the $v_{_2}^{γ_{dir}}$ show similar pattern dependence on the transverse momentum for the same $Δη$, at both $\sqrt{s}$ = 200 GeV and $\sqrt{s}$ = 13 TeV. At each center-of-mass energy, the measured $v_{_2}$ shows obvious dependence on the quark flavor contents where $v_{_2}^{γ_{dir}}$ $\le$ $v_{_2}^{J/ψ, Υ, K, D, B}$ $\le$ $v_{_2}^{π^{^\pm,}π^{^0}}$ for similar $Δη$ gap. The measured $v_{_2}$ shows slightly higher values at smaller $\sqrt{s}$ for particles of similar values of $Δη$ gaps, particularly at small $Δη$ gap. The measured $v_{_2}$ for all particles shows systematic decreases with increasing the $Δη$ gap as expected from the previous experimental results. Because PYTHIA8 simulations do not incorporate final state interactions, the $v_{_2}(EP)$ values reported here primarily reflect the non-flow contributions and its dependence on the quark contents, pseudorapidity gap as a function on $p_{T}$ at each center of mass-energy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_13981 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Benchmarking the Non-flow Contributions to the Elliptic Flow Parameter ($v_{_2}$) in Proton-Proton Collisions Abdulhamid, M. I. Hamed, A. M. Osama, E. A. Rateb, M. Sadoun, N. K. Sawy, F. H. High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment This manuscript reports on the elliptic flow parameter, $v_{_2}$, in proton-proton (p-p) collisions using PYTHIA8 event generator simulations. The typical Event Plane ($EP$) method $v_{_2}$($EP$) as the one used for the real data analysis has been adopted to measure the $v_{_2}$ of particles composed of different quark flavors, and produced at mid-pseudorapidity $|η| \le 1$ at center-of-mass energy $\sqrt{s}$ = 200 GeV and $\sqrt{s}$ = 13 TeV. The event plane has been constructed using the soft charged particles with transverse momentum ($p{_{_T}} < $ 2 GeV/c) produced in various $η$ ranges. The pseudorapidity gap technique ($Δη$) between the particle of interest and the soft charged particles contributed to the event plane constructions has been utilized to benchmark the non-flow contributions. The $v_{_2}^{π^{^\pm,}π^{^0}}$, $v_{_2}^{J/ψ,Υ, K, D, B}$, and the $v_{_2}^{γ_{dir}}$ show similar pattern dependence on the transverse momentum for the same $Δη$, at both $\sqrt{s}$ = 200 GeV and $\sqrt{s}$ = 13 TeV. At each center-of-mass energy, the measured $v_{_2}$ shows obvious dependence on the quark flavor contents where $v_{_2}^{γ_{dir}}$ $\le$ $v_{_2}^{J/ψ, Υ, K, D, B}$ $\le$ $v_{_2}^{π^{^\pm,}π^{^0}}$ for similar $Δη$ gap. The measured $v_{_2}$ shows slightly higher values at smaller $\sqrt{s}$ for particles of similar values of $Δη$ gaps, particularly at small $Δη$ gap. The measured $v_{_2}$ for all particles shows systematic decreases with increasing the $Δη$ gap as expected from the previous experimental results. Because PYTHIA8 simulations do not incorporate final state interactions, the $v_{_2}(EP)$ values reported here primarily reflect the non-flow contributions and its dependence on the quark contents, pseudorapidity gap as a function on $p_{T}$ at each center of mass-energy. |
| title | Benchmarking the Non-flow Contributions to the Elliptic Flow Parameter ($v_{_2}$) in Proton-Proton Collisions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment |
| url | https://arxiv.org/abs/2405.13981 |