Searching for new physics in the b → d FCNC using Bs0(t) → φKs and Bd0(t) → K0K0

C. S. Kim; D. London; T. Yoshikawa

doi:10.1016/S0370-2693(99)00591-2

Searching for new physics in the b → d FCNC using B_s⁰(t) → φK_s and B_d⁰(t) → K⁰K⁰

C. S. Kim, D. London, T. Yoshikawa

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Time-dependent measurements of the decays B_s⁰(t) → φK_s and B_d⁰(t) → K⁰K⁰ can be used to compare the weak phases of B_d⁰-B_d⁰ 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_s⁰(t) → J/ψK_s and B_d⁰(t)→ J/ψπ⁰.

Original language	English
Pages (from-to)	361-369
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	458
Issue number	2-3
DOIs	https://doi.org/10.1016/S0370-2693(99)00591-2
Publication status	Published - 1999

Bibliographical note

Funding Information:
C.S.K. wishes to acknowledge the financial support of 1997-sughak program of Korean Research Foundation. The work of D.L. was financially supported by NSERC of Canada and FCAR du Québec. The work of T.Y. was supported in part by Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan and in part by JSPS Research Fellowships for Young Scientists.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(99)00591-2

Cite this

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title = "Searching for new physics in the b → d FCNC using Bs0(t) → φKs and Bd0(t) → K0K0",

abstract = "Time-dependent measurements of the decays Bs0(t) → φKs and Bd0(t) → K0K0 can be used to compare the weak phases of Bd0-Bd0 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 Bs0(t) → J/ψKs and Bd0(t)→ J/ψπ0.",

author = "Kim, {C. S.} and D. London and T. Yoshikawa",

note = "Funding Information: C.S.K. wishes to acknowledge the financial support of 1997-sughak program of Korean Research Foundation. The work of D.L. was financially supported by NSERC of Canada and FCAR du Qu{\'e}bec. The work of T.Y. was supported in part by Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan and in part by JSPS Research Fellowships for Young Scientists.",

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AU - Yoshikawa, T.

N1 - Funding Information: C.S.K. wishes to acknowledge the financial support of 1997-sughak program of Korean Research Foundation. The work of D.L. was financially supported by NSERC of Canada and FCAR du Québec. The work of T.Y. was supported in part by Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan and in part by JSPS Research Fellowships for Young Scientists.

PY - 1999

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AB - Time-dependent measurements of the decays Bs0(t) → φKs and Bd0(t) → K0K0 can be used to compare the weak phases of Bd0-Bd0 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 Bs0(t) → J/ψKs and Bd0(t)→ J/ψπ0.

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