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| Author | : Giuseppe Nicola Lacagnina |
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| Total Pages | : 0 |
| Release | : 2000 |
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| Author | : Giuseppe Nicola Lacagnina |
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| Release | : 2000 |
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| Release | : 1998 |
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In lattice QCD, obtaining properties of heavy-light mesons has been easier said than done. Focusing on the B meson's decay constant, it is argued that towards the end of 1997 the last obstacles were removed, at least in the quenched approximation. These developments, which resulted from a fuller understanding and implementation of ideas in effective field theory, bode well for current studies of neutral meson mixing and of semileptonic decays.
| Author | : Inger Hanmann |
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| Total Pages | : 20 |
| Release | : 1972 |
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| Release | : 2009 |
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We present the leptonic decay constants f{sub D{sub s}} and f{sub D{sup +}} computed on the MILC collaboration's 2+1 flavor asqtad gauge ensembles. We use clover heavy quarks with the Fermilab interpretation and improved staggered light quarks. The simultaneous chiral and continuum extrapolation, which determines both decay constants, includes partially-quenched lattice results at lattice spacings a (almost equal to) 0.09, 0.12 and 0.15 fm. We have made several recent improvements in our analysis: (a) we include terms in the fit describing leading order heavy-quark discretization effects, (b) we have adopted a more precise input r1 value consistent with our other D and B meson studies, (c) we have retuned the input bare charm masses based upon the new r1. Our preliminary results are f{sub D{sub s}} = 260 ± 10 MeV and f{sub D{sup +}} = 217 ± 10 MeV.
| Author | : Krishna Kingkar Pathak |
| Publisher | : LAP Lambert Academic Publishing |
| Total Pages | : 120 |
| Release | : 2014-11-18 |
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| ISBN | : 9783659622885 |
The book deals with an introductory idea of Leptonic and semileptonic decay of Heavy-Light mesons. It also highlight the application of a specific QCD potential model in this area of physics. Specifically, it also addresses the application of quantum mechanical perturbation method and explicitly the Dalagarno method of perturbation in this context. The necessity of modification of the model within the constraints of QCD and the model itself is explained and also improved accordingly. Out of the five chapters, the second and third chapters address the leptonic decay of B and D mesons whereas in the last two chapters, the study of semileptonic decay in terms of the universal form factor, Isgur-Wise function is well explained.
| Author | : John Jaros |
| Publisher | : World Scientific |
| Total Pages | : 952 |
| Release | : 2000 |
| Genre | : Science |
| ISBN | : 9789810241896 |
Stanford University hosted the XIX International Symposium on Lepton and Photon Interactions at High Energies on August 9 - 14, 1999, at the Law School on the Stanford University Campus, the site of the previous Symposia. This volume constitutes the proceedings of the Symposium.
| Author | : Ashley Noel Cooke |
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| Release | : 2014 |
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| Author | : Henning Hoeber |
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| Total Pages | : 0 |
| Release | : 1994 |
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| Author | : Lodovico Antonio Muratori |
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| Total Pages | : 14 |
| Release | : 1902 |
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