A simplified approach to determine α and the penguin amplitude in Bd → pipi

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Date

January, 1995

type
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  • handle:  10670/1.cvi9i8
  • Hamzaoui, Chérif et Xing, Zhi-zhong (1995). « A simplified approach to determine α and the penguin amplitude in Bd → pipi ». Physics Letters B, 360(1-2), pp. 131-137.

Keywords

Penguin amplitude


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Chérif Hamzaoui et al., « A simplified approach to determine α and the penguin amplitude in Bd → pipi », UQAM Archipel : articles scientifiques, ID : 10670/1.cvi9i8


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Abstract 0

The effect of inelastic final-state interactions (IFSI's) on the determination of the weak phase α from the isospin triangles of B→ππ is qualitatively illustrated. Neglecting the electroweak penguins and IFSI's and assuming the dominance of the top-quark loop in strong penguin diagrams, we propose an experimentally accessible way to approximately determine α and the penguin amplitude in Bd→ππ. This approach relies on a simplified isospin consideration and the factorization approximation, and its feasibility is irrelevant to the time-dependent measurements of Bd→ππ.

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