Effect of supersymmetric CP phases on the B → Xsγ and B → XsI+I- decays in the minimal supergravity model

Toru Goto, Y. Y. Keum, Takeshi Nihei, Yasuhiro Okada, Yasuhiro Shimizu

研究成果: Article査読

67 被引用数 (Scopus)

抄録

We investigate the effect of supersymmetric CP violating phases on the B→Xsγ and B→XsI+I- decays in the minimal supergravity model. We show that the phase of the trilinear scalar coupling constant for top squarks is strongly suppressed and aligned to that of the gaugino mass due to a renormalization effect from the Planck scale to the electroweak scale. As a result, the effect of supersymmetric CP violating phases on the B → Xsγ and B → XsI+ I- decays are small taking into account the neutron and the electron electric dipole moment constraints. For the B → Xsy decay, the amplitude has almost no new CP violating phase and the direct CP asymmetry is less than 2%. For the B→XSI+I- decay, the branching ratio can be sizably different from that in the standard model only when the sign of the B → Xsy amplitude is opposite to that in the standard model.

本文言語English
ページ(範囲)333-340
ページ数8
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
460
3-4
DOI
出版ステータスPublished - 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

フィンガープリント 「Effect of supersymmetric CP phases on the B → X<sub>s</sub>γ and B → X<sub>s</sub>I<sup>+</sup>I<sup>-</sup> decays in the minimal supergravity model」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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