To a question on the η\to π^0 γγdecay width in meson-baryon chiral model

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dc.creatorKuraev, E. A.
dc.creatorPervushin, V. N.
dc.creatorVolkov, M. K.
dc.date2007-05-30
dc.date2007-06-24
dc.date.accessioned2026-07-07T10:55:56Z
dc.date.available2026-07-07T10:55:56Z
dc.descriptionIt is shown in the work of one of the authors in 1979 (MKV) that the contribution to the amplitude of this decay from diagrams with one baryon loop is equal to zero and contributions from diagrams with meson loops appear very small. However, pole diagrams with intermediate vector mesons were not considered there. Here it is shown that contributions of these pole diagrams dominate. The meson-baryon chiral model used here is compared with known quark chiral models. The obtained results are in satisfactory agreement with recent experimental data.
dc.description4 pages, 1 pic
dc.identifierhttps://arxiv.org/abs/0705.4383
dc.identifierhttp://arxiv.org/abs/0705.4383
dc.identifierJETPLett.86:164-166,2007
dc.identifierdoi:10.1134/S0021364007150039
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186243
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTo a question on the η\to π^0 γγdecay width in meson-baryon chiral model
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