Leading SU(3) breaking in lightcone distribution amplitudes

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dc.creatorKim, Chul
dc.creatorLeibovich, Adam K.
dc.date2008-06-30
dc.date.accessioned2026-07-07T11:52:10Z
dc.date.available2026-07-07T11:52:10Z
dc.descriptionThe lightcone formalism including SU(3) breaking effects for the light pseudoscalar mesons is studied using soft-collinear effective theory (SCET), where the conformal symmetries needed for the expansion can be clearly implemented. The lightcone distribution amplitudes (LCDAs) are well-defined at each order in the SCET power counting, lambda. Relations between the LCDAs are reproduced using the SCET formalism. Treating the SU(3) breaking perturbatively, the leading breaking effects can be described in a simple manner. As a result, a new relationship among the LCDAs for the light mesons pi, K, and eta is developed, valid to leading order in the SU(3) breaking.
dc.description25 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0806.4957
dc.identifierhttp://arxiv.org/abs/0806.4957
dc.identifierPhys.Rev.D78:054026,2008
dc.identifierdoi:10.1103/PhysRevD.78.054026
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204138
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLeading SU(3) breaking in lightcone distribution amplitudes
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