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A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action
We present a calculation of $f_B$ in the static limit, obtained by numerical simulation of quenched QCD, at $\beta=6.2$ on a $18~3 \times 64$ lattice, using the SW-Clover quark action. The decay constant has been extracted by studying heavy(static)-light correlation functions of different smeared op...
| Autores principales: | , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1994
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(94)91325-0 http://cds.cern.ch/record/261601 |
| _version_ | 1780886270630690816 |
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| author | Allton, C.R. Crisafulli, M. Lubicz, V. Salina, G. Martinelli, G. Vladikas, A. Bartoloni, A. Battista, C. Cabasino, S. Cabibbo, N. Marzano, F. Paolucci, P.S. Pech, J. Rapuano, F. Sarno, R. Todesco, G.M. Torelli, M. Tross, W. Vicini, P. |
| author_facet | Allton, C.R. Crisafulli, M. Lubicz, V. Salina, G. Martinelli, G. Vladikas, A. Bartoloni, A. Battista, C. Cabasino, S. Cabibbo, N. Marzano, F. Paolucci, P.S. Pech, J. Rapuano, F. Sarno, R. Todesco, G.M. Torelli, M. Tross, W. Vicini, P. |
| author_sort | Allton, C.R. |
| collection | CERN |
| description | We present a calculation of $f_B$ in the static limit, obtained by numerical simulation of quenched QCD, at $\beta=6.2$ on a $18~3 \times 64$ lattice, using the SW-Clover quark action. The decay constant has been extracted by studying heavy(static)-light correlation functions of different smeared operators, on a sample of 220 gauge field configurations. We have obtained $f_B~{static}=(290 \pm 15 \pm 45)$ MeV, where the first error comes from the uncertainty in the determination of the matrix element and the second comes from the uncertainty in the lattice spacing. We also obtain $M_{B_s}-M_{B_d}= (70 \pm 10)$ MeV and $f~{stat}_{B_s}/f~{stat}_{B_d}=1.11(3)$. A comparison of our results with other calculations of the same quantity is made. |
| id | cern-261601 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1994 |
| record_format | invenio |
| spelling | cern-2616012023-03-14T19:55:36Zdoi:10.1016/0370-2693(94)91325-0http://cds.cern.ch/record/261601engAllton, C.R.Crisafulli, M.Lubicz, V.Salina, G.Martinelli, G.Vladikas, A.Bartoloni, A.Battista, C.Cabasino, S.Cabibbo, N.Marzano, F.Paolucci, P.S.Pech, J.Rapuano, F.Sarno, R.Todesco, G.M.Torelli, M.Tross, W.Vicini, P.A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover actionParticle Physics - TheoryWe present a calculation of $f_B$ in the static limit, obtained by numerical simulation of quenched QCD, at $\beta=6.2$ on a $18~3 \times 64$ lattice, using the SW-Clover quark action. The decay constant has been extracted by studying heavy(static)-light correlation functions of different smeared operators, on a sample of 220 gauge field configurations. We have obtained $f_B~{static}=(290 \pm 15 \pm 45)$ MeV, where the first error comes from the uncertainty in the determination of the matrix element and the second comes from the uncertainty in the lattice spacing. We also obtain $M_{B_s}-M_{B_d}= (70 \pm 10)$ MeV and $f~{stat}_{B_s}/f~{stat}_{B_d}=1.11(3)$. A comparison of our results with other calculations of the same quantity is made.We present a calculation of ƒ B in the static limit, obtained by numerical simulation of quenched QCD, at β =6.2 on a 18 3 × 64 lattice, using the SW-Clover quark action. The decay constant has been extracted by studying heavy (static)-light correlation functions of different smeared operators, on a sample of 220 gauge field configurations. We have obtained ƒ B static =(290±15±45) MeV , where the first error comes from the uncertainty in the determination of the matrix element and the second comes from the uncertainty in the lattice spacing. We also obtain M B s − M B d =(70±10) MeV and ƒ B s stat /ƒ B d stat =1.11 (3) . A comparison of our results with other calculations of the same quantity is made.hep-ph/9402343CERN-TH-7202-94ROME-981-1994ROMA-1-981CERN-TH-7202-94oai:cds.cern.ch:2616011994 |
| spellingShingle | Particle Physics - Theory Allton, C.R. Crisafulli, M. Lubicz, V. Salina, G. Martinelli, G. Vladikas, A. Bartoloni, A. Battista, C. Cabasino, S. Cabibbo, N. Marzano, F. Paolucci, P.S. Pech, J. Rapuano, F. Sarno, R. Todesco, G.M. Torelli, M. Tross, W. Vicini, P. A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action |
| title | A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action |
| title_full | A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action |
| title_fullStr | A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action |
| title_full_unstemmed | A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action |
| title_short | A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action |
| title_sort | high statistic lattice calculation of $\int_{b}^{static}$ at $\beta$ = 6.2 using the clover action |
| topic | Particle Physics - Theory |
| url | https://dx.doi.org/10.1016/0370-2693(94)91325-0 http://cds.cern.ch/record/261601 |
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