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

scholarly journals Doubly Cabibbo-suppressed decays of antitriplet charmed baryons

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Guanbao Meng ◽  
Sam Ming-Yin Wong ◽  
Fanrong Xu
Keyword(s):  
Current Algebra ◽  
Branching Fractions ◽  
Final States ◽  
Pole Model ◽  
Bag Model ◽  
Charmed Baryons ◽  
Weak Decays ◽  
Mit Bag Model ◽  
Cabibbo Suppressed ◽  
Diagram Approach

Abstract Doubly Cabibbo-suppressed (DCS) nonleptonic weak decays of antitriplet charmed baryons are studied systematically in this work. The factorizable and nonfactorizable contributions can be classified explicitly in the topological-diagram approach and treated separately. In particular, the evaluation of nonfactorizable terms is based on the pole model in conjunction with current algebra. All three types of relevant non- perturbative parameters contributing factorizable and nonfactorizable terms are estimated in the MIT bag model. Branching fractions of all the DCS decays are predicted to be of order 10−4 ∼ 10−6. In particular, we find that the three modes $$ {\Xi}_c^{+}\to {\Sigma}^{+}{K}^0,{\Sigma}^0{K}^{+} $$ Ξ c + → Σ + K 0 , Σ 0 K + and $$ {\Xi}_c^0\to {\Sigma}^{-}{K}^{+} $$ Ξ c 0 → Σ − K + are as large as (1 ∼ 2) × 10−4, which are the most promising DCS channels to be measured. We also point out that the two DCS modes $$ {\Xi}_c^{+}\to {\Sigma}^{+}{K}^0 $$ Ξ c + → Σ + K 0 and $$ {\Xi}_c^0\to {\Sigma}^0{K}^0 $$ Ξ c 0 → Σ 0 K 0 are possible to be distinguished from $$ {\Xi}_c^{+}\to {\Sigma}^{+}{K}_S $$ Ξ c + → Σ + K S and $$ {\Xi}_c^0\to {\Sigma}^0{K}_S $$ Ξ c 0 → Σ 0 K S . The decay asymmetries for all the channels with a kaon in their final states are found to be large in magnitude and negative in sign.

scholarly journals Two-body weak decays of doubly charmed baryons

2020 ◽  
Vol 101 (3) ◽  
Author(s):  
Hai-Yang Cheng ◽  
Guanbao Meng ◽  
Fanrong Xu ◽  
Jinqi Zou
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

scholarly journals Charmed baryon decay to a strange baryon plus a pion using QCD sum rules

2019 ◽  
Vol 34 (03n04) ◽  
pp. 1950015 ◽  
Author(s):  
Leonard S. Kisslinger ◽  
Bijit Singha
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Strange Baryon ◽  
Weak Decays ◽  
Baryon Decay

This is an extension of the prediction of strange baryon decays to the decays of charmed baryons using QCD sum rules. Using QCD sum rules, we estimate the decay [Formula: see text]. Although some weak decays of the [Formula: see text] have been measured, since it is difficult to measure [Formula: see text] our estimates should be useful for future experiments.

scholarly journals Two-body hadronic weak decays of antitriplet charmed baryons

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Jinqi Zou ◽  
Fanrong Xu ◽  
Guanbao Meng ◽  
Hai-Yang Cheng
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

Weak decays of charmed baryons

1979 ◽  
Vol 2 (2) ◽  
pp. 117-135 ◽  
Author(s):  
J. G. K�rner ◽  
G. Kramer ◽  
J. Willrodt
Keyword(s):  
Charmed Baryons ◽  
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.

Nonleptonic weak decays of charmed baryons

1992 ◽  
Vol 46 (3) ◽  
pp. 1042-1059 ◽  
Author(s):  
Hai-Yang Cheng ◽  
B. Tseng
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

scholarly journals SU(3)flavoranalysis of two-body weak decays of charmed baryons

1997 ◽  
Vol 55 (11) ◽  
pp. 7067-7074 ◽  
Author(s):  
K. K. Sharma ◽  
R. C. Verma
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

scholarly journals Erratum: Nonleptonic weak decays of charmed baryons [Phys. Rev.D 46, 1042 (1992)]

1997 ◽  
Vol 55 (3) ◽  
pp. 1697-1697 ◽  
Author(s):  
Hai-Yang Cheng ◽  
B. Tseng
Keyword(s):  
Charmed Baryons ◽  
Weak Decays
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