Isospin analysis of CP asymmetries in B decays

There is some theoretical uncertainty in the predictions for {ital CP}-violating hadronic asymmetries in neutral-{ital B} decays to {ital CP} eigenstates due to the existence of penguin diagrams. Using isospin relations, we show that it is possible to remove this uncertainty for the decays {ital B}{...

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Veröffentlicht in:	Physical review letters 1990-12, Vol.65 (27), p.3381-3384
Hauptverfasser:	GRONAU, M, LONDON, D
Format:	Artikel
Sprache:	eng
Schlagworte:	645202 - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties 645204 - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties AMPLITUDES B MESONS BOSONS CHARM PARTICLES CHARMED MESONS CP INVARIANCE D MESONS DECAY DECAY AMPLITUDES ELEMENTARY PARTICLES Exact sciences and technology FIELD THEORIES HADRONIC PARTICLE DECAY HADRONS INVARIANCE PRINCIPLES ISOSPIN KOBAYASHI-MASKAWA MATRIX MATRICES MESONS PARAMETRIC ANALYSIS PARTICLE DECAY PARTICLE PROPERTIES Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALAR MESONS Quantum statistical mechanics Statistical physics, thermodynamics, and nonlinear dynamical systems SYMMETRY BREAKING TRANSITION AMPLITUDES UNIFIED-FIELD THEORIES
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Beschreibung
Zusammenfassung:	There is some theoretical uncertainty in the predictions for {ital CP}-violating hadronic asymmetries in neutral-{ital B} decays to {ital CP} eigenstates due to the existence of penguin diagrams. Using isospin relations, we show that it is possible to remove this uncertainty for the decays {ital B}{sub {ital d}}{sup 0}{r arrow}{pi}{pi}.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.65.3381