Why current algebra and PCAC are applicable for charmed-meson and -baryon weak decays

1991 ◽  
Vol 43 (5) ◽  
pp. 1739-1741 ◽  
Author(s):  
R. E. Karlsen ◽  
M. D. Scadron
Keyword(s):  
Current Algebra ◽  
Charmed Meson ◽  
Weak Decays

COMPARING WEAK DECAYS K→2π AND D→2π

1996 ◽  
Vol 11 (35) ◽  
pp. 2743-2753 ◽  
Author(s):  
M.D. SCADRON
Keyword(s):  
Current Algebra ◽  
Weak Decays

We show that ΔI=3/2 transitions for quark W-emission K2π diagrams and independently the current algebra-PCAC consistency scheme for all three K2π amplitudes are extremely accurate, within 3% of the data. Although the same analysis applied to D2π decays roughly approximates recent experiments, the agreement is only valid to within 25%–40% of the data.

scholarly journals Study of theψ(1S,2S)andηc(1S,2S)Weak Decays intoDM

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Junfeng Sun ◽  
Yueling Yang ◽  
Jinshu Huang ◽  
Lili Chen ◽  
Qin Chang
Keyword(s):  
Branching Ratios ◽  
Light Meson ◽  
Heavy Flavor ◽  
Final States ◽  
Charmed Meson ◽  
Matrix Elements ◽  
High Luminosity ◽  
Factorization Approach ◽  
Weak Decays ◽  
Qcd Factorization

Inspired by the recent measurements on theJ/ψ(1S)→Dsρ,DuK⁎weak decays at BESIII and the potential prospects of charmonium at high-luminosity heavy-flavor experiments, we studyψ(1S,2S)andηc(1S,2S)weak decays into final states including one charmed meson plus one light meson, considering QCD corrections to hadronic matrix elements with QCD factorization approach. It is found that the Cabibbo-favoredψ(1S,2S)→Ds-ρ+,Ds-π+,D¯u0K¯⁎0decays have large branching ratios≳10-10, which might be accessible at future experiments.

PCAC consistency. II. Charmed meson two- and three-body nonleptonic weak decays

1992 ◽  
Vol 45 (11) ◽  
pp. 4113-4120 ◽  
Author(s):  
R. E. Karlsen ◽  
M. D. Scadron
Keyword(s):  
Charmed Meson ◽  
Weak Decays ◽  
Three Body

CABIBBO ANGLE-ENHANCED AND DOUBLY SUPPRESSED D→Kπ WEAK DECAYS AND PCAC

1995 ◽  
Vol 10 (36) ◽  
pp. 2733-2738
Author(s):  
M.D. SCADRON
Keyword(s):  
Current Algebra ◽  
Branching Ratio ◽  
Cabibbo Angle ◽  
Weak Decays

The observed branching ratio of D°→K+π− to K−π+ is obtained using current algebra-PCAC consistency. The latter approach also sets the scale for the three Cabibbo angle-enhanced [Formula: see text] decays in a manner compatible with data.

Current algebra and nonleptonic weak decays of charmed baryons

1985 ◽  
Vol 88 (2) ◽  
pp. 213-224 ◽  
Author(s):  
F. Hussain ◽  
K. Khan
Keyword(s):  
Current Algebra ◽  
Charmed Baryons ◽  
Weak Decays
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