Cargando…
Beautiful baryons from lattice QCD
We perform a lattice study of heavy baryons, containing one (\Lambda_b) or two b-quarks (\Xi_b). Using the quenched approximation we obtain for the mass of \Lambda_b M_{\Lambda_b}= 5.728 \pm 0.144 \pm 0.018 {\rm GeV}. The mass splitting between the \Lambda_b and the B-meson is found to increase by a...
| Autores principales: | , , , , , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
1994
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(94)90985-7 http://cds.cern.ch/record/266666 |
| _version_ | 1780886705183653888 |
|---|---|
| author | Alexandrou, C. Borrelli, A. Gusken, S. Jegerlehner, F. Schilling, K. Siegert, G. Sommer, R. |
| author_facet | Alexandrou, C. Borrelli, A. Gusken, S. Jegerlehner, F. Schilling, K. Siegert, G. Sommer, R. |
| author_sort | Alexandrou, C. |
| collection | CERN |
| description | We perform a lattice study of heavy baryons, containing one (\Lambda_b) or two b-quarks (\Xi_b). Using the quenched approximation we obtain for the mass of \Lambda_b M_{\Lambda_b}= 5.728 \pm 0.144 \pm 0.018 {\rm GeV}. The mass splitting between the \Lambda_b and the B-meson is found to increase by about 20\% if the light quark mass is varied from the chiral limit to the strange quark mass. ------- Figures obtained upon request from borrelli@psiclu.cern.ch. |
| id | cern-266666 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1994 |
| record_format | invenio |
| spelling | cern-2666662023-03-14T20:44:06Zdoi:10.1016/0370-2693(94)90985-7http://cds.cern.ch/record/266666engAlexandrou, C.Borrelli, A.Gusken, S.Jegerlehner, F.Schilling, K.Siegert, G.Sommer, R.Beautiful baryons from lattice QCDParticle Physics - TheoryWe perform a lattice study of heavy baryons, containing one (\Lambda_b) or two b-quarks (\Xi_b). Using the quenched approximation we obtain for the mass of \Lambda_b M_{\Lambda_b}= 5.728 \pm 0.144 \pm 0.018 {\rm GeV}. The mass splitting between the \Lambda_b and the B-meson is found to increase by about 20\% if the light quark mass is varied from the chiral limit to the strange quark mass. ------- Figures obtained upon request from borrelli@psiclu.cern.ch.We perform a lattice study of heavy baryons, containing one ($\Lambda_b$) or two $b$-quarks ($\Xi_b$). Using the quenched approximation we obtain for the mass of $\Lambda_b$ $$ M_{\Lambda_b}= 5.728 \pm 0.144 \pm 0.018 {\rm GeV}.$$ The mass splitting between the $\Lambda_b$ and the B-meson is found to increase by about 20\% if the light quark mass is varied from the chiral limit to the strange quark mass. ------- Figures obtained upon request from borrelli@psiclu.cern.ch.We perform a lattice study of heavy baryons, containing one ($\Lambda_b$) or two $b$-quarks ($\Xi_b$). Using the quenched approximation we obtain for the mass of $\Lambda_b$ $$ M_{\Lambda_b}= 5.728 \pm 0.144 \pm 0.018 {\rm GeV}.$$ The mass splitting between the $\Lambda_b$ and the B-meson is found to increase by about 20\% if the light quark mass is varied from the chiral limit to the strange quark mass. ------- Figures obtained upon request from borrelli@psiclu.cern.ch.We perform a lattice study of heavy baryons, containing one ($\Lambda_b$) or two $b$-quarks ($\Xi_b$). Using the quenched approximation we obtain for the mass of $\Lambda_b$ $$ M_{\Lambda_b}= 5.728 \pm 0.144 \pm 0.018 {\rm GeV}.$$ The mass splitting between the $\Lambda_b$ and the B-meson is found to increase by about 20\% if the light quark mass is varied from the chiral limit to the strange quark mass. ------- Figures obtained upon request from borrelli@psiclu.cern.ch.We perform a lattice study of heavy baryons, containing one ( Λ b ) or two b -quarks Ξ b . Using the quenched approximation we obtain for the mass of Λ b , M Λ b = 5.728 ± 0.144 ± 0.018 GeV. The mass splitting between the λ b and the B -meson is found to increase by about 20% if the light quark mass is varied from the chiral limit to the strange quark mass.We perform a lattice study of heavy baryons, containing one ($\Lambda_b$) or two $b$-quarks ($\Xi_b$). Using the quenched approximation we obtain for the mass of $\Lambda_b$ $$ M_{\Lambda_b}= 5.728 \pm 0.144 \pm 0.018 {\rm GeV}.$$ The mass splitting between the $\Lambda_b$ and the B-meson is found to increase by about 20\% if the light quark mass is varied from the chiral limit to the strange quark mass.hep-lat/9407027UCY-PHY-94-3CERN-TH-7382-94PSI-PR-94-22CERN-TH-7382-94PSI-PR-94-22UCY-PHY-94-3oai:cds.cern.ch:2666661994-07-29 |
| spellingShingle | Particle Physics - Theory Alexandrou, C. Borrelli, A. Gusken, S. Jegerlehner, F. Schilling, K. Siegert, G. Sommer, R. Beautiful baryons from lattice QCD |
| title | Beautiful baryons from lattice QCD |
| title_full | Beautiful baryons from lattice QCD |
| title_fullStr | Beautiful baryons from lattice QCD |
| title_full_unstemmed | Beautiful baryons from lattice QCD |
| title_short | Beautiful baryons from lattice QCD |
| title_sort | beautiful baryons from lattice qcd |
| topic | Particle Physics - Theory |
| url | https://dx.doi.org/10.1016/0370-2693(94)90985-7 http://cds.cern.ch/record/266666 |
| work_keys_str_mv | AT alexandrouc beautifulbaryonsfromlatticeqcd AT borrellia beautifulbaryonsfromlatticeqcd AT guskens beautifulbaryonsfromlatticeqcd AT jegerlehnerf beautifulbaryonsfromlatticeqcd AT schillingk beautifulbaryonsfromlatticeqcd AT siegertg beautifulbaryonsfromlatticeqcd AT sommerr beautifulbaryonsfromlatticeqcd |