Long vs. short distance dispersive two-photon K_L \to μ^+ μ^- amplitude

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dc.creatorEeg, J. O.
dc.creatorKumericki, K.
dc.creatorPicek, I.
dc.date1999-01-21
dc.date.accessioned2026-07-07T04:06:16Z
dc.date.available2026-07-07T04:06:16Z
dc.descriptionWe report on the calculation of the two-loop electroweak, two-photon mediated short-distance dispersive K_L \to μ^+μ^- decay amplitude. QCD corrections change the sign of this contribution and reduce it by an order of magnitude. The resulting amplitude enables us to provide a constraint on the otherwise uncertain long-distance dispersive amplitude.
dc.description5 pages, 2 figures, presented by K.K. on the conference "Nuclear and Particle Physics with CEBAF", Dubrovnik, Croatia, Nov 3-10, 1998
dc.identifierhttps://arxiv.org/abs/hep-ph/9901372
dc.identifierhttp://arxiv.org/abs/hep-ph/9901372
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/48704
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLong vs. short distance dispersive two-photon K_L \to μ^+ μ^- amplitude
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