Erratum to: Measurements of \(\pi ^-\) production in \(^7\hbox {Be}+{}^9\hbox {Be}\) collisions at beam momenta from 19A to 150\(A\,\text{ Ge } \text{ V }/c\) in the NA61/SHINE experiment at the CERN SPS

NA61/SHINE Collaboration

The Original Article was published on 19 October 2020

Fig. 14
figure1

Ratio of normalized transverse mass spectra: Be+Be/p+p (left) and Be+Be/Pb+Pb (right) at the SPS energies

Erratum to: Eur. Phys. J. C. (2020) 80:961 https://doi.org/10.1140/epjc/s10052-020-08514-6

In this erratum, we clarify the details of the comparison of \(m_T\) spectra between p+p, Be+Be, and Pb+Pb. In the published paper, the normalization of \(m_T\) spectra was found inconsistent in Fig. 14. It was checked that not all spectra were normalized to the spectrum’s integral in the range \(0.24< m_T - m_{\pi ^-} < 0.72\) given in the paper. In this erratum, the ratios with correct normalization in the described region are shown. The normalized Be+Be spectra were then divided by the corresponding p+p and Pb+Pb spectra used as a reference. The resulting corrected ratios of the normalized spectra are presented in Fig. 1.

Correct normalization does not change the conclusions given in the paper. The shape of \(m_T\) spectra in central Be+Be collisions is significantly different from the one observed in inelastic p+p interactions (Fig. 1left). However, it is important to note that the Be+Be system is isospin symmetric whereas p+p has \(I_3 =1\). Comparing Be+Be to Pb+Pb (Fig. 1right) reveals that both shapes are similar. Note that Pb+Pb is to a large extent isospin symmetric.

A corrected version of the article is also available on the arXiv (arXiv:2008.06277).

Acknowledgements

We would like to thank the CERN EP, BE, HSE and EN Departments for the strong support of NA61/SHINE. We thank A. Kubala-Kukuś and D. Banaś from the Institute of Physics, Jan Kochanowski University for the target purity measurements with the WDXRF technique. This work was supported by the Hungarian Scientific Research Fund (grant NKFIH 123842/123959), the Polish Ministry of Science and Higher Education (grants 667/N-CERN/2010/0, NN 202 48 4339, NN 202 23 1837 and DIR/WK/2016/2017/10-1), the National Science Centre Poland (grants 2014/14/E/ST2/00018, 2014/15/B/ST2 /02537 and 2015/18/M/ST2/00125, 2015/19/N/ST2 /01689, 2016/23/B/ST2/00692, 2017/25/N/ST2/02575, 2018/30/A/ST2/00226, 2018/31/G/ST2/03910), the Russian Science Foundation, grant 16-12-10176 and 17-72-20045, the Russian Academy of Science and the Russian Foundation for Basic Research (grants 08-02-00018, 09-02-00664 and 12-02-91503-CERN), the Russian Foundation for Basic Research (RFBR) funding within the research project no. 18-02-00086, the National Research Nuclear University MEPhI in the framework of the Russian Academic Excellence Project (contract No. 02.a03.21.0005, 27.08.2013), the Ministry of Science and Higher Education of the Russian Federation, Project “Fundamental properties of elementary particles and cosmology” No 0723-2020-0041, the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 871072, the Ministry of Education, Culture, Sports, Science and Technology, Japan, Grant-in-Aid for Scientific Research (grants 18071005, 19034011, 19740162, 20740160 and 20039012), the German Research Foundation (grant GA 1480/8-1), the Bulgarian Nuclear Regulatory Agency and the Joint Institute for Nuclear Research, Dubna (bilateral contract No. 4799-1-18/20), Bulgarian National Science Fund (grant DN08/11), Ministry of Education and Science of the Republic of Serbia (grant OI171002), Swiss Nationalfonds Foundation (grant 200020117913/1), ETH Research Grant TH-01 07-3 and the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359 and the IN2P3-CNRS (France).

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Acharya, A., Adhikary, H., Aduszkiewicz, A. et al. Erratum to: Measurements of \(\pi ^-\) production in \(^7\hbox {Be}+{}^9\hbox {Be}\) collisions at beam momenta from 19A to 150\(A\,\text{ Ge } \text{ V }/c\) in the NA61/SHINE experiment at the CERN SPS. Eur. Phys. J. C 81, 144 (2021). https://doi.org/10.1140/epjc/s10052-021-08926-y

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