$B^{0} - {\bar{B}}^{0}$ mixing and the weak-interaction phase

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1 December 1983

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 28 (11) , 2915-2917
https://doi.org/10.1103/physrevd.28.2915

Abstract

The amount of

B^{0} - {\bar{B}}^{0}

mixing as seen in the rate of same-sign leptons in

e^{+} e^{-} \to B^{0} {\bar{B}}^{0} \to llX

is a sensitive way to measure the phase (

sign of cos δ

) in the Kobayashi-Maskawa matrix. It is shown how a rough measurement of the same-sign dilepton rate can determine the quadrant

δ

is in.

Keywords

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