Skip to main content
Log in

Estimating Non-Flow Effects in Measurements of Anisotropic Flow of Protons with the HADES Experiment at GSI

  • Published:
Physics of Particles and Nuclei Aims and scope Submit manuscript

Abstract

Centrality dependence of the directed flow of protons in Au + Au collisions at the beam energy of 1.23 \(A\) GeV collected by the HADES experiment at GSI is presented. Measurements are performed with respect to the spectators plane estimated using the Forward Wall hodoscope. Biases due to non-flow correlations and correlated detector effects are evaluated. The corresponding systematic uncertainties are quantified using estimates of the spectators plane from various forward rapidity regions constructed from groups of Forward Wall channels and protons reconstructed with the HADES tracking system.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.

Similar content being viewed by others

REFERENCES

  1. J. Adamczewski-Musch et al. (HADES Collab.), “Directed, elliptic and higher order flow harmonics of protons, deuterons and tritons in Au + Au collisions at \(\sqrt {{{s}_{{NN}}}} \) = 2.4 GeV,” arXiv:2005.12217 (2020).

  2. S. A. Voloshin, A. M. Poskanzer, and R. Snellings.” Landolt–Bornstein 23, 293–333 (2010); arXiv: 0809.2949 [nucl-ex] (2008).

  3. N. Borghini, P. M. Dinh, and J. Y. Ollitrault, “Are flow measurements at SPS reliable?,” Phys. Rev. C 62, 034902 (2000); arXiv:nucl-th/0004026.

    Article  ADS  Google Scholar 

  4. A. Bilandzic, R. Snellings, and S. Voloshin, “Flow analysis with cumulants: Direct calculations,” Phys. Rev. C 83, 044913 (2011); arXiv:1010.0233 [nucl-ex] (2010).

  5. A. Bilandzic, C. H. Christensen, K. Gulbrandsen, A. Hansen, and Y. Zhou, “Generic framework for anisotropic flow analyses with multiparticle azimuthal correlations,” Phys. Rev. C 89, 064904 (2014); arXiv: 1312.3572 [nucl-ex] (2013).

  6. S. A. Voloshin et al. (STAR Collab.), “Energy and system size dependence of elliptic flow: Using rapidity gaps to suppress non-flow contribution,” AIP Conf. Proc. 870, 691–694 (2006); arXiv:nucl-ex/0610038.

  7. G. Agakishiev et al. (HADES Collab.), “The high-acceptance dielectron spectrometer HADES,” Eur. Phys. J. A 41, 243–277 (2009); arXiv:0902.3478 [nucl-ex].

    Article  ADS  Google Scholar 

  8. J. Adamczewski-Musch et al. (HADES Collab.), “Centrality determination of Au + Au collisions at 1.23A GeV with HADES,” Eur. Phys. J. A 54, 85 (2018); arXiv:1712.07993.

  9. I. Selyuzhenkov and S. Voloshin,” Phys. Rev. C 77, 034904 (2008); arXiv:0707.4672 [nucl-th].

    Article  ADS  Google Scholar 

  10. I. Selyuzhenkov and L. Kreiz, “QnTool framework,” https://github.com/HeavyIonAnalysis/QnTools (2020).

  11. V. Gonzalez, J. Onderwaater, and I. Selyuzhenkov, https://github.com/FlowCorrections/FlowVectorCorrections (2018).

Download references

Funding

The work is supported by the Ministry of Science and Higher Education of the Russian Federation, Project “Fundamental properties of elementary particles and cosmology” no. 0723-2020-0041, the Russian Foundation for Basic Research funding within the research project no. 18-02-40086, the European Union’s Horizon 2020 research and innovation program under grant agreement no. 871072, the National Research Nuclear University MEPhI in the framework of the Russian Academic Excellence Project (contract no. 02.a03.21.0005, 27.08.2013).

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to M. Mamaev, O. Golosov or I. Selyuzhenkov.

Ethics declarations

The authors declare that they have no conflicts of interest.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Mamaev, M., Golosov, O. & Selyuzhenkov, I. Estimating Non-Flow Effects in Measurements of Anisotropic Flow of Protons with the HADES Experiment at GSI. Phys. Part. Nuclei 53, 277–281 (2022). https://doi.org/10.1134/S1063779622020514

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1063779622020514

Navigation