J an 1 99 9 REVIEW OF b - FLAVORED HADRON SPECTROSCOPY
نویسنده
چکیده
The current status of b-flavored hadron spectroscopy is reviewed.
منابع مشابه
ep - l at / 9 90 10 23 v 2 9 J ul 1 99 9 OVERVIEW FROM LATTICE QCD
I review recent Lattice results. In particular, the confinement mechanism and string breaking, glueballs and hybrid mesons as well as light hadron spectroscopy are discussed.
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We extend the approach based on the light-cone expansion and the heavy quark effective theory to the inclusive semileptonic decay of an unpolarized b-flavored hadron. It is applied to calculate the semileptonic decay width of the Λb baryon and its ratio to that of the B meson. We obtain ΓSL(Λb) = 51 ± 9 |Vcb| 2ps−1 and ΓSL(Λb)/ΓSL(B) = 1.052 ± 0.006. From the latter, the semileptonic branching ...
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The Constituent Quark Model has provided a remarkable description of the experimentally observed hadron spectrum but still has no firm theoretical basis. Attempts to provide a QCD justification discussed at Hadron99 include QCD Sum Rules, instantons, relativistic potential models and the lattice. Phenomenological analyses to clarify outstanding problems like the nature of the scalar and pseudos...
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