scholarly journals RESONANCES AND WEAK INTERACTIONS IN D+→ π+π−π+ DECAYS

2007 ◽  
Vol 16 (09) ◽  
pp. 2876-2879 ◽  
Author(s):  
DIOGO R. BOITO ◽  
BRUNO EL-BENNICH ◽  
BENOÎT LOISEAU ◽  
OLIVIER LEITNER

We describe the ππS-wave in D+→ π+π−π+ decays using a unitary model for the ππ Final State Interactions (FSI). The three body decay is treated as a quasi two-body process where, at the weak vertex, the D meson decays into a resonance and a pion. The weak part of the decay amplitude is evaluated using the effective weak Hamiltonian within the factorization approximation.

2007 ◽  
Vol 790 (1-4) ◽  
pp. 675c-678c ◽  
Author(s):  
A. Reis

2007 ◽  
Vol 22 (02n03) ◽  
pp. 645-648
Author(s):  
L. LEŚNIAK ◽  
R. KAMIŃSKI ◽  
B. EL-BENNICH ◽  
B. LOISEAU ◽  
A. FURMAN

Analysis of charged and neutral B meson decays into π+π-K, K+K-K and [Formula: see text] is performed using a unitary representation of the ππ and [Formula: see text] final state interactions. Comparison of the theoretical model with the experimental data of the Belle and BaBar Collaborations indicates that charming penguin contributions are necessary to describe the B → f0(980) K and B → ρ(770)0 K decays.


1990 ◽  
Vol 238 (1) ◽  
pp. 20-24 ◽  
Author(s):  
G.E. Brown ◽  
J.W. Durso ◽  
M.B. Johnson ◽  
J. Speth

2021 ◽  
pp. 136824
Author(s):  
I. Bediaga ◽  
T. Frederico ◽  
P.C. Magalhães ◽  
D. Torres Machado

Meson 2002 ◽  
2003 ◽  
Author(s):  
RAYMOND J. STEFANSKI ◽  

1961 ◽  
Vol 21 (6) ◽  
pp. 988-1000 ◽  
Author(s):  
G. Barton ◽  
C. Kacser

2005 ◽  
Vol 20 (02n03) ◽  
pp. 482-492 ◽  
Author(s):  
◽  
PAOLO DINI

Charm meson decay-dynamics has been extensively studied in the last decade. Dalitz plot analysis has revealed as a powerful tool for investigating effects of resonant substructures, interference patterns and final-state-interactions in the charm sector. Recent results from FOCUS on D+ and Ds decays will be presented with particular emphasis on the decay amplitude formalism; Isobar model and K-matrix model results will be compared and discussed.


2005 ◽  
Vol 20 (13) ◽  
pp. 947-963 ◽  
Author(s):  
E. O. ALT ◽  
B. F. IRGAZIEV ◽  
A. M. MUKHAMEDZHANOV

Coulomb breakup of a projectile in the Coulomb field of a fully stripped heavy nucleus is at present one of the most popular experimental methods to obtain information on reactions of interest in nuclear astrophysics. Its theoretical interpretation presents, however, considerable difficulties, due to the three-body nature and the infinite range of the Coulomb forces involved. Among the uncertainties affecting present analyses, the possible modification of the dissociation cross-section by three-body Coulomb final-state interactions plays a major role. Various methods which have been proposed to deal with it are briefly reviewed. However, none of them is based on a consistent and mathematically satisfactory quantum mechanical treatment, with the exception of the one proposed recently. The latter, being based on the prior form of the dissociation amplitude, makes use of a genuine three-charged particle wave function for the final state which is an exact solution of the three-body Schrödinger equation, albeit only asymptotically, i.e. for large distances. Nevertheless, interesting conclusion can be drawn concerning the influence of three-body Coulomb final-state interactions on quantities of astrophysical interest.


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