Abstract
The final-state interaction of pions in K e4 decay allows to obtain the value of the isospin and angular-momentum-zero ππ scattering length a 00 .We take into account the electromagnetic interaction of pions and isospin-symmetry-breaking effects caused by different masses of neutral and charged pions and estimate the impact of these effects on the procedure of scattering-length extraction from K e4 decays.
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References
B. Ananthanarayan, G. Colangelo, J. Gasser, and H. Leutwyler, Phys. Rep. 353, 207 (2001).
G. Colangelo, J. Gasser, and H. Leutwyler, Nucl. Phys. B 603, 125 (2001).
S. Pislak et al., Phys. Rev. Lett. 87, 221801 (2001); Phys. Rev. D 67, 072004 (2003).
L. Masetti, in Proc. of the Intern. Conf. on Heavy Quarks and Leptons, Munich, Germany, Oct. 2006
B. Bloch-Devaux, PoS (KAON), 035 (2008).
J. R. Batley et al., Eur. Phys. J. C 54, 411 (2008).
N. Cabibbo and A. Maksymowicz, Phys. Rev. 137, B438 (1965).
A. Pais and S. B. Treiman, Phys. Rev. 168, 1858 (1968).
G. Amoros and J. Bijnens, J. Phys. G 25, 1607 (1999).
K. M. Watson, Phys. Rev. 88, 1163 (1952).
J. Gasser and A. Rusetsky, Isospin Violations in K e4 decays, Internal note to the NA48/2 Collaboration (March, 2007).
S. R. Gevorkyan, A. N. Sissakian, A. V. Tarasov, H. T. Torosyan, and O. O. Voskresenskaya, arXiv: 0704.2675v1 [hep-ph].
J. Gasser, PoS (KAON), 033 (2008), arXiv: 0710.3048 [hep-ph].
G. Colangelo, J. Gasser, and A. Rusetsky, Eur. Phys. J. C 59, 777 (2009), arXiv:0811.0775v1 [hep-ph].
S. R. Gevorkyan, A. N. Sissakian, A. V. Tarasov, H. T. Torosyan, and O. O. Voskresenskaya, arXiv:0711.4618v2 [hep-ph].
G. Colangelo, J. Gasser, B. Kubis, and A. Rusetsky, Phys. Lett. 638, 187 (2006).
N. Cabibbo, Phys. Rev. Lett. 93, 121801 (2004).
N. Cabibbo and G. Isidori, J. High Energy Phys. 0503, 021 (2005).
S. R. Gevorkyan, A. V. Tarasov, and O.O. Voskresenskaya, Phys. Lett. B 649, 159 (2007).
L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 3: Quantum Mechanics: Non-Relativistic Theory (Nauka, Moscow, 1989; Pergamon, New York, 1977).
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The text was submitted by the authors in English.
On leave of absence from Yerevan Physics Institute, Armenia.
On leave of absence from Siberian Physical-Technical Institute, Tomsk, Russia.
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Gevorkyan, S.R., Sissakian, A.N., Tarasov, A.V. et al. The electromagnetic effects in K e4 decay. Phys. Atom. Nuclei 73, 937–940 (2010). https://doi.org/10.1134/S1063778810060049
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DOI: https://doi.org/10.1134/S1063778810060049