Bounds on the Slope and Curvature of Isgur-Wise Function in a QCD-Inspired Quark Model
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2011
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| author | Bhaskar Jyoti Hazarika |
| author_facet | Bhaskar Jyoti Hazarika |
| contents | Bounds on the Slope and Curvature of Isgur-Wise Function in a QCD-Inspired Quark Model Bhaskar Jyoti Hazarika D. K. Choudhury Física, Astronomía y Matemáticas Isgur Slope Curvature Wise function Dalgarno method The quantum chromodynamics-inspired potential model pursued by us earlier has been recently modified to incorporate an additional factor 'c' in the linear cum Coulomb potential. While it felicitates the inclusion of standard confinement parameter b = 0.183 GeV2 unlike in previous work, it still falls short of explaining the Isgur-Wise function for the B mesons without ad hoc adjustment of the strong coupling constant. In this work, we determine the factor 'c' from the experimental values of decay constants and masses and show that the reality constraint on 'c' yields bounds on the strong coupling constant as well as on slope and curvature of Isgur-Wise function allowing more flexibility to the model. 2011 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46421602011 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2-3 Vol.41 |
| format | Artículo científico |
| id | redalyc_46421602011 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Bounds on the Slope and Curvature of Isgur-Wise Function in a QCD-Inspired Quark Model Bhaskar Jyoti Hazarika Física, Astronomía y Matemáticas Isgur Slope Curvature Wise function Dalgarno method Bounds on the Slope and Curvature of Isgur-Wise Function in a QCD-Inspired Quark Model Bhaskar Jyoti Hazarika D. K. Choudhury Física, Astronomía y Matemáticas Isgur Slope Curvature Wise function Dalgarno method The quantum chromodynamics-inspired potential model pursued by us earlier has been recently modified to incorporate an additional factor 'c' in the linear cum Coulomb potential. While it felicitates the inclusion of standard confinement parameter b = 0.183 GeV2 unlike in previous work, it still falls short of explaining the Isgur-Wise function for the B mesons without ad hoc adjustment of the strong coupling constant. In this work, we determine the factor 'c' from the experimental values of decay constants and masses and show that the reality constraint on 'c' yields bounds on the strong coupling constant as well as on slope and curvature of Isgur-Wise function allowing more flexibility to the model. 2011 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46421602011 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2-3 Vol.41 |
| title | Bounds on the Slope and Curvature of Isgur-Wise Function in a QCD-Inspired Quark Model |
| topic | Física, Astronomía y Matemáticas Isgur Slope Curvature Wise function Dalgarno method |
| url | https://www.redalyc.org/articulo.oa?id=46421602011 |