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Are Cabibbo suppressed decays really suppressed in D$^{+}$ decays?

Two classes of proposals have been made to account for the 'anomalies' reported in charm decays, namely (a) strong 20-plet dominance and (b) W exchange. It is pointed out that 20-plet dominance leads to rather striking effects for the Cabibbo disfavoured decays of D/sup +/, namely the abse...

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Detalles Bibliográficos
Autor principal: Bigi, Ikaros I
Lenguaje:eng
Publicado: 1979
Materias:
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(80)90079-9
http://cds.cern.ch/record/133534
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author Bigi, Ikaros I
author_facet Bigi, Ikaros I
author_sort Bigi, Ikaros I
collection CERN
description Two classes of proposals have been made to account for the 'anomalies' reported in charm decays, namely (a) strong 20-plet dominance and (b) W exchange. It is pointed out that 20-plet dominance leads to rather striking effects for the Cabibbo disfavoured decays of D/sup +/, namely the absence of strong Cabibbo suppression. The W exchange mechanism does not seem to lead to such effects. (16 refs).
id cern-133534
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1979
record_format invenio
spelling cern-1335342019-09-30T06:29:59Zdoi:10.1016/0370-2693(80)90079-9http://cds.cern.ch/record/133534engBigi, Ikaros IAre Cabibbo suppressed decays really suppressed in D$^{+}$ decays?Particle Physics - PhenomenologyTwo classes of proposals have been made to account for the 'anomalies' reported in charm decays, namely (a) strong 20-plet dominance and (b) W exchange. It is pointed out that 20-plet dominance leads to rather striking effects for the Cabibbo disfavoured decays of D/sup +/, namely the absence of strong Cabibbo suppression. The W exchange mechanism does not seem to lead to such effects. (16 refs).CERN-TH-2767oai:cds.cern.ch:1335341979-10-26
spellingShingle Particle Physics - Phenomenology
Bigi, Ikaros I
Are Cabibbo suppressed decays really suppressed in D$^{+}$ decays?
title Are Cabibbo suppressed decays really suppressed in D$^{+}$ decays?
title_full Are Cabibbo suppressed decays really suppressed in D$^{+}$ decays?
title_fullStr Are Cabibbo suppressed decays really suppressed in D$^{+}$ decays?
title_full_unstemmed Are Cabibbo suppressed decays really suppressed in D$^{+}$ decays?
title_short Are Cabibbo suppressed decays really suppressed in D$^{+}$ decays?
title_sort are cabibbo suppressed decays really suppressed in d$^{+}$ decays?
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(80)90079-9
http://cds.cern.ch/record/133534
work_keys_str_mv AT bigiikarosi arecabibbosuppresseddecaysreallysuppressedinddecays