A scalar gluonium contribution to $K\rightarrowππ$ decay

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dc.creatorPenin, A. A.
dc.creatorPivovarov, A. A.
dc.date1995-07-17
dc.date.accessioned2026-07-07T12:03:13Z
dc.date.available2026-07-07T12:03:13Z
dc.descriptionWe study a new $K\rightarrowππ$ decay channel with gluons in intermediate state which is normally neglected within the factorization framework. Both short-distance and long-distance parts of the amplitude are calculated. The chiral Lagrangian approach is used for obtaining the long-distance contribution. The nonperturbative contribution gives an additional enhancement to $K\rightarrowππ$ decay amplitude with $ΔI=1/2$. A sizable violation of factorization in the $p^4$ order of chiral perturbation theory is found.
dc.descriptionLaTeX file
dc.identifierhttps://arxiv.org/abs/hep-ph/9507316
dc.identifierhttp://arxiv.org/abs/hep-ph/9507316
dc.identifierNuovoCim.A107:1211-1217,1994
dc.identifierdoi:10.1007/BF02775761
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207707
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA scalar gluonium contribution to $K\rightarrowππ$ decay
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