Dispersive Approach to Abelian Axial Anomaly and $η-η'$ Mixing

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dc.creatorKlopot, Y. N.
dc.creatorOganesian, A. G.
dc.creatorTeryaev, O. V.
dc.date2008-10-07
dc.date.accessioned2026-07-07T10:08:08Z
dc.date.available2026-07-07T10:08:08Z
dc.descriptionWe investigate what can be learnt about the $η$ -$η'$ mixing by means of dispersive representation of axial anomaly. We show that our method leads to the strong bounds for the $η-η'$ mixing angle: $θ= -15.3^o \pm 1^o$. Moreover, our result manifests also a dramatic dependence of the width $Γ_{η\to 2γ}$ on the mixing angle $θ$. This property explains how the relatively small mixing strongly effects the decay width.
dc.description11 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0810.1217
dc.identifierhttp://arxiv.org/abs/0810.1217
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170891
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDispersive Approach to Abelian Axial Anomaly and $η-η'$ Mixing
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