Searching for new physics in the b → d FCNC using B s 0 (t) → φK s and B d 0 (t) → K 0 K 0

Choong Sun Kim, D. London, T. Yoshikawa

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Time-dependent measurements of the decays B s 0 (t) → φK s and B d 0 (t) → K 0 K 0 can be used to compare the weak phases of B d 0 -B d 0 mixing and the t-quark contribution to the b → d penguin. Since these two phases are equal in the standard model, any discrepancy would be a sign of new physics, specifically in the b → d flavour-changing neutral current (FCNC). The method can be applied to other pairs of decays, such as B s 0 (t) → J/ψK s and B d 0 (t)→ J/ψπ 0 .

Original languageEnglish
Pages (from-to)361-369
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume458
Issue number2-3
DOIs
Publication statusPublished - 1999 Jan 1

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neutral currents
physics
decay
quarks

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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Searching for new physics in the b → d FCNC using B s 0 (t) → φK s and B d 0 (t) → K 0 K 0 . / Kim, Choong Sun; London, D.; Yoshikawa, T.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 458, No. 2-3, 01.01.1999, p. 361-369.

Research output: Contribution to journalArticle

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