Abstract
Space Star (SS) anomaly in nd breakup cross section was first reported in 1989 at E n = 13 MeV (Strate et al. in Nucl Phys A 501:51, 1989), but its origin has not been found yet. In order to obtain suggestions for its origin, we made systematic measurements of pd breakup cross section around SS. In SS configuration, three outgoing nucleons form an equilateral triangle and the triangle is perpendicular to the beam axis. Necessity of the equilateral and perpendicular conditions of SS anomaly was investigated by systematic experiments. Also energy dependence of SS anomaly is being studied at energies from E p = 7.5 to 13 MeV.
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Strate J. et al.: Differential cross section of the 2H(n, nnp)-reaction at E n = 13 MeV. Nucl. Phys. A 501, 51 (1989)
Setze H.R. et al.: Verification of the space-star anomaly in nd breakup. Phys. Lett. B 388, 299 (1996)
Rauprich G. et al.: Study of the kinematically complete breakup reaction \({{}^2{\rm H}({\overline{p}}, pp)n}\) at E p = 13 MeV with polarized protons. Nucl. Phys. A 535, 313 (1991)
Ishida T. et al.: Search for Space Star Anomaly in pd breakup reaction at 13 MeV. Mod. Phys. Lett. A 18, 436 (2003)
Deltuva A., Fonseca C.A., Sauer U.P.: Momentum-space description of three-nucleon breakup reactions including the Coulomb interaction. Phys. Rev. C 72, 054004 (2005)
Ley J. et al.: Cross sections and tensor analyzing powers A yy of the reaction 1H(p, pp)n in symmetric constant relative energy geometries at E d = 19 MeV. Phys. Rev. C 73, 064001 (2006)
Sagara K. et al.: Energy dependence of analyzing power A y and cross section for p + d scattering below 18 MeV. Phys. Rev. C 50, 576 (1994)
Deltuva, A.: Private communication
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Ohnaka, K., Sagara, K., Maeda, Y. et al. Systematic Measurement of pd Breakup Cross Section Around Space Star. Few-Body Syst 55, 725–728 (2014). https://doi.org/10.1007/s00601-014-0890-7
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DOI: https://doi.org/10.1007/s00601-014-0890-7