8He Spectroscopy in Stopped Pion Absorption By 9Be

Abstract

Level structure of 8He has been studied in the reaction of stopped pion absorption by 9Be nuclei. The missing mass spectrum in the range 0 MeV ≤ MM ≤ 10 MeV has been described by the superposition of phase-space distributions and the three states of 8He. Parameters of these states have been compared with data of other experimental and theoretical works.

References
[1] D. R. Tilley et al., Nucl. Phys. A, 745, 155 (2005).


[2] M. V. Zhukov et al., Phys. Rev. C, 50, R1 (1994).


[3] L.V. Chulkov et al., Nucl. Phys. A, 759, 43 (2005).


[4] F. Scaza et al., Nucl. Phys. A, 788, 260c (2007).


[5] K. Hagino et al., Phys. Rev. C, 77, 054317 (2008).


[6] Y. Kanada-Enyo et al., Nucl. Phys. A, 805, 392c (2008).


[7] L. V. Grigorenko et al., Physics-Uspekhi, 59, 321 (2016).


[8] L. V. Grigorenko et al., Phys. Part. Nucl. Lett., 6, 118 (2009).


[9] K. K. Seth, Nucl. Phys. A, 434, 287 (1985).


[10] Yu. B. Gurov et al., JETP Lett., 84, 3 (2006).


[11] Yu. B. Gurov et al., Bull. Rus. Acad. Sci., Phys. 79, 470 (2015).


[12] Yu. B. Gurov et al., JETP Lett. 101, 69 (2015).


[13] M. G. Gornov et al., Nucl. Instrum. Methods Phys. Res., A, 446, 461 (2000).


[14] Yu. B. Gurov et al., Phys. Part. Nucl., 40, 558 (2009).


[15] V. Lapoux et al., J. Phys. Conf. Ser., 49, 161 (2006).


[16] M. S. Golovkov et al., Phys. Lett. B,. 672, 22 (2009).


[17] A. M. Gorbatov et al., Sov. J. Nucl. Phys., 50, 1551 (1989).


[18] A. A. Wolters et al., Phys. Rev. C, 42, 2062 (1990).


[19] N. Michel et al., Phys. Rev. C, 67, 054311 (2003).