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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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Lenguaje: | eng |
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1979
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Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(80)90079-9 http://cds.cern.ch/record/133534 |
_version_ | 1780879584575619072 |
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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 |