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The $X_c$(3250) as a $D^∗\Delta$ molecule
A new structure at 3.25 GeV/c2 has been recently reported by the BaBar collaboration which has received the name of Xc(3250). A preliminary fit to this structure gives a mass M=3245± 20 MeV/c2 and a width G = 108±60 MeV/c2. A molecular interpretation as a D∗ 0(2400)N bound state has been proposed si...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/1698265 |
| _version_ | 1780936209369923584 |
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| author | Ortega, P G Entem, D R Fernández, F |
| author_facet | Ortega, P G Entem, D R Fernández, F |
| author_sort | Ortega, P G |
| collection | CERN |
| description | A new structure at 3.25 GeV/c2 has been recently reported by the BaBar collaboration which has received the name of Xc(3250). A preliminary fit to this structure gives a mass M=3245± 20 MeV/c2 and a width G = 108±60 MeV/c2. A molecular interpretation as a D∗ 0(2400)N bound state has been proposed since the threshold for this channel is close to the nominal mass. However the width of the D∗ 0 (2400) seems to be too large to explain the width of the Xc(3250). As the D∗D threshold is also close to the nominal mass of the state, we investigate the possibility to be a D∗D bound state. We find three possible molecules with I(JP) quantum numbers 2( 1 2 − ), 2(32 − ) and 1( 5 2 − ) which are compatible with the measured mass and width. |
| id | cern-1698265 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2014 |
| record_format | invenio |
| spelling | cern-16982652022-08-10T20:59:26Zhttp://cds.cern.ch/record/1698265engOrtega, P GEntem, D RFernández, FThe $X_c$(3250) as a $D^∗\Delta$ moleculeParticle Physics - PhenomenologyA new structure at 3.25 GeV/c2 has been recently reported by the BaBar collaboration which has received the name of Xc(3250). A preliminary fit to this structure gives a mass M=3245± 20 MeV/c2 and a width G = 108±60 MeV/c2. A molecular interpretation as a D∗ 0(2400)N bound state has been proposed since the threshold for this channel is close to the nominal mass. However the width of the D∗ 0 (2400) seems to be too large to explain the width of the Xc(3250). As the D∗D threshold is also close to the nominal mass of the state, we investigate the possibility to be a D∗D bound state. We find three possible molecules with I(JP) quantum numbers 2( 1 2 − ), 2(32 − ) and 1( 5 2 − ) which are compatible with the measured mass and width.oai:cds.cern.ch:16982652014 |
| spellingShingle | Particle Physics - Phenomenology Ortega, P G Entem, D R Fernández, F The $X_c$(3250) as a $D^∗\Delta$ molecule |
| title | The $X_c$(3250) as a $D^∗\Delta$ molecule |
| title_full | The $X_c$(3250) as a $D^∗\Delta$ molecule |
| title_fullStr | The $X_c$(3250) as a $D^∗\Delta$ molecule |
| title_full_unstemmed | The $X_c$(3250) as a $D^∗\Delta$ molecule |
| title_short | The $X_c$(3250) as a $D^∗\Delta$ molecule |
| title_sort | $x_c$(3250) as a $d^∗\delta$ molecule |
| topic | Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/1698265 |
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