- Open Access
Study of electron-positron annihilation into four pions within chiral effective field theory in the low energy region
Phys. Rev. D 113, 054029 – Published 20 March, 2026
DOI: https://doi.org/10.1103/f9xp-k4y2
Abstract
In this paper, we employ chiral effective field theory to study the process of electron-positron annihilation into four pions in the low energy region within . The prediction of the cross section is obtained through chiral perturbation theory up to the next-to-leading order, which is smaller than the experimental data in the energy region [0.6–0.65] GeV, though the data has only a few points and poor statistics. Then, the resonance chiral theory is applied to include the resonance contribution, with the lightest scalars and vectors written in the effective Lagrangians. A series of relevant decay widths and the masses of the vectors are studied to fix the unknown couplings. The resonance contribution should be one order larger than that of the chiral perturbation theory but still one to two orders smaller than the data. The significant discrepancy urged the new experimental measurements to give more guidance. We also compute the leading order hadronic vacuum polarization contribution from the four pion channels to the anomalous magnetic moment of the muon, . In the energy range from threshold up to 0.6 GeV within resonance chiral theory, the contributions are and for the processes of , , respectively.
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References (70)
- S. Weinberg, Physica (Amsterdam) 96A, 327 (1979).
- J. Gasser and H. Leutwyler, Ann. Phys. (N.Y.) 158, 142 (1984).
- J. Gasser and H. Leutwyler, Nucl. Phys. B250, 465 (1985).
- F. Jegerlehner, The Anomalous Magnetic Moment of the Muon (Springer, Cham, 2017), Vol. 274.
- G. W. Bennett et al. (Muon g-2 Collaboration), Phys. Rev. D 73, 072003 (2006).
- B. Abi et al. (Muon g-2 Collaboration), Phys. Rev. Lett. 126, 141801 (2021).
- D. P. Aguillard et al. (Muon g-2 Collaboration), Phys. Rev. Lett. 131, 161802 (2023).
- T. Aoyama et al., Phys. Rep. 887, 1 (2020).
- A. Keshavarzi, D. Nomura, and T. Teubner, Phys. Rev. D 97, 114025 (2018).
- G. Colangelo, F. Hagelstein, M. Hoferichter, L. Laub, and P. Stoffer, J. High Energy Phys. 03 (2020) 101.
- M. Davier, A. Hoecker, B. Malaescu, and Z. Zhang, Eur. Phys. J. C 80, 241 (2020); 80, 410(E) (2020).
- A. Keshavarzi, D. Nomura, and T. Teubner, Phys. Rev. D 101, 014029 (2020).
- W. Qin, L.-Y. Dai, and J. Portoles, J. High Energy Phys. 03 (2021) 092.
- S.-J. Wang, Z. Fang, and L.-Y. Dai, J. High Energy Phys. 07 (2023) 037.
- G. V. Fedotovich (CMD-3 Collaboration), Moscow Univ. Phys. Bull. 79, 86 (2024).
- S. Borsanyi et al., Nature (London) 593, 51 (2021).
- M. Cè et al., Phys. Rev. D 106, 114502 (2022).
- C. Alexandrou et al. (Extended Twisted Mass Collaboration), Phys. Rev. D 107, 074506 (2023).
- A. Bazavov et al. (Fermilab Lattice Collaboration, HPQCD Collaboration and MILC Collaboration), Phys. Rev. D 107, 114514 (2023).
- T. Blum et al. (RBC Collaboration and UKQCD Collaboration), Phys. Rev. D 108, 054507 (2023).
- D. Erb, A. Gerardin, H. B. Meyer, J. Parrino, V. Pascalutsa, and V. Biloshytskyi, Proc. Sci. LATTICE2024 (2024) 236 [arXiv:2412.14760].
- G. Colangelo, M. Hoferichter, B. Kubis, M. Niehus, and J. R. de Elvira, Phys. Lett. B 825, 136852 (2022).
- F. V. Ignatov et al. (CMD-3 Collaboration), Phys. Rev. D 109, 112002 (2024).
- F. V. Ignatov et al. (CMD-3 Collaboration), Phys. Rev. Lett. 132, 231903 (2024).
- J. A. Miranda and P. Roig, J. High Energy Phys. 11 (2018) 038.
- M. Hoferichter, G. Colangelo, B.-L. Hoid, B. Kubis, J. R. de Elvira, D. Schuh, D. Stamen, and P. Stoffer, Phys. Rev. Lett. 131, 161905 (2023).
- D. Gómez Dumm and P. Roig, Eur. Phys. J. C 73, 2528 (2013).
- R. Aliberti et al., Phys. Rep. 1143, 1 (2025).
- R. Unterdorfer, J. High Energy Phys. 07 (2002) 053.
- G. Ecker and R. Unterdorfer, Eur. Phys. J. C 24, 535 (2002).
- G. Ecker, J. Gasser, A. Pich, and E. de Rafael, Nucl. Phys. B321, 311 (1989).
- G. Ecker, J. Gasser, H. Leutwyler, A. Pich, and E. de Rafael, Phys. Lett. B 223, 425 (1989).
- V. Cirigliano, G. Ecker, M. Eidemuller, R. Kaiser, A. Pich, and J. Portoles, Nucl. Phys. B753, 139 (2006).
- Z. H. Guo, J. J. Sanz Cillero, and H. Q. Zheng, J. High Energy Phys. 06 (2007) 030.
- J. Portoles, AIP Conf. Proc. 1322, 178 (2010).
- L. Y. Dai, J. Portoles, and O. Shekhovtsova, Phys. Rev. D 88, 056001 (2013).
- B.-H. Qin, W. Qin, and L.-Y. Dai, Phys. Rev. D 111, 034025 (2025).
- J. Bijnens and G. Ecker, Annu. Rev. Nucl. Part. Sci. 64, 149 (2014).
- R. L. Workman et al. (Particle Data Group), Prog. Theor. Exp. Phys. 2022, 083C01 (2022).
- S. Scherer and M. R. Schindler, A Primer for Chiral Perturbation Theory (Springer, Berlin, Heidelberg, 2012), Vol. 830.
- P. D. Ruiz-Femenia, A. Pich, and J. Portoles, J. High Energy Phys. 07 (2003) 003.
- D. G. Dumm, P. Roig, A. Pich, and J. Portoles, Phys. Rev. D 81, 034031 (2010).
- L. Y. Dai, X. G. Wang, and H. Q. Zheng, Commun. Theor. Phys. 57, 841 (2012).
- D.-L. Yao, L.-Y. Dai, H.-Q. Zheng, and Z.-Y. Zhou, Rep. Prog. Phys. 84, 076201 (2021).
- M. Jamin, J. A. Oller, and A. Pich, Nucl. Phys. B622, 279 (2002).
- L.-Y. Dai, J. Fuentes-Martín, and J. Portolés, Phys. Rev. D 99, 114015 (2019).
- H. Czyz and J. H. Kuhn, Eur. Phys. J. C 18, 497 (2001).
- E. Weil, G. Eichmann, C. S. Fischer, and R. Williams, Phys. Rev. D 96, 014021 (2017).
- F. James and M. Roos, Comput. Phys. Commun. 10, 343 (1975).
- L.-Y. Dai and M. R. Pennington, Phys. Lett. B 736, 11 (2014).
- L.-Y. Dai and M. R. Pennington, Phys. Rev. D 90, 036004 (2014).
- B. Efron, in Breakthroughs in Statistics: Methodology and Distribution (Springer, New York, 1992), p. 569–593.
- J. P. Lees et al. (BABAR Collaboration), Phys. Rev. D 85, 112009 (2012).
- A. Pich, in The Phenomenology of Large N(c) QCD (World Scientific, Singapore, 2002), p. 239–258.
- S. J. Brodsky and E. De Rafael, Phys. Rev. 168, 1620 (1968).
- B. E. Lautrup and E. De Rafael, Phys. Rev. 174, 1835 (1968).
- G. Passarino and M. J. G. Veltman, Nucl. Phys. B160, 151 (1979).
- R. Unterdorfer and G. Ecker, J. High Energy Phys. 10 (2005) 017.
- B. A. Kniehl, Phys. Rep. 240, 211 (1994).
- G. ’t Hooft and M. J. G. Veltman, Nucl. Phys. B153, 365 (1979).
- J. Wess and B. Zumino, Phys. Lett. B 37, 95 (1971).
- E. Witten, Nucl. Phys. B223, 422 (1983).
- I. Rosell, J. J. Sanz-Cillero, and A. Pich, J. High Energy Phys. 08 (2004) 042.
- I. Rosell, J. J. Sanz-Cillero, and A. Pich, J. High Energy Phys. 01 (2007) 039.
- A. Pich, I. Rosell, and J. J. Sanz-Cillero, J. High Energy Phys. 02 (2011) 109.
- J. Nieves, A. Pich, and E. Ruiz Arriola, Phys. Rev. D 84, 096002 (2011).
- A. Dobado and J. R. Pelaez, Phys. Rev. D 56, 3057 (1997).
- D. Gomez Dumm, A. Pich, and J. Portoles, Phys. Rev. D 69, 073002 (2004).
- D. Gomez Dumm, A. Pich, and J. Portoles, AIP Conf. Proc. 806, 11 (2006).
- D. G. Dumm, P. Roig, A. Pich, and J. Portoles, Phys. Lett. B 685, 158 (2010).