Erratum: Decay widths of excited heavy mesons from QCD sum rules at the leading order of HQET [Phys. Rev. D58, 094032 (1998)]
نویسندگان
چکیده
منابع مشابه
ρ-Decay Widths of Excited Heavy Mesons From Light-Cone QCD Sum Rules in the Leading Order of HQET
The couplings and decay widths of the processes (1+, 2+) → (0−, 1−) + ρ are studied with the light-cone QCD sum rules in the leading order of heavy quark effective theory. These processes are employed to estimate the two pion transition widths of the (1+, 2+) doublet through the low mass tail of the ρ resonance. The ambiguity due to the presence of two distinct 1+ states is solved. Our calculat...
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The couplings of pions with lowest three doublets (0−, 1−), (0+, 1+) and (1+, 2+) of heavy mesons are studied with light-cone QCD sum rules in the leading order of heavy quark effective theory. The ambiguity due to presence of two distinct 1+ states are solved. PACS number: 12.39.Hg, 14.40.Nd, 12.38.Lg
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In this talk, we focus on the L = 1 excited charm mesons. It is heuristic to illustrate them in the following way, although it is not accurate (L is not a conserved quantity). For the ground state (L = 0) mesons which we are familiar with, there are two states with the J quantum numbers: D(0) and D(1). Their difference only lies in the heavy quark spin direction. For the L = 1 case, there are f...
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The decay widths of the 0++ and 1−+ heavy-light hybrids to B(D) and pion are calculated by using the QCD sum rules. The interpolated current of the hybrid is chosen as gq̄γαG a αμT hv (x). In order to avoid the infrared problem, a two point correlation function between the pion and vacuum instead of the three point correlation function between the vacuum is used. We also keep the leading order o...
متن کاملCouplings of Pions with Heavy Baryons From Light-Cone QCD Sum Rules in the Leading Order of HQET
The couplings of pions with heavy baryons g2(Σ ∗,Σ) and g3(Σ∗,Λ) are studied with light-cone QCD sum rules in the leading order of heavy quark effective theory. Both sum rules are stable. Our results are g2 = 1.56±0.3±0.3, g3 = 0.94±0.06±0.2. PACS number: 12.39.Hg, 14.20.Lq, 13.75.Gx, 12.38.Lg
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1999
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.59.059901