Three-body decay of B0→D¯*(2007) 0π+π−

2015 ◽  
Vol 93 (3) ◽  
pp. 339-343 ◽  
Author(s):  
Behnam Mohammadi ◽  
Hossein Mehraban
Keyword(s):  
Form Factor ◽  
Dalitz Plot ◽  
Decay Constant ◽  
Axial Vector ◽  
Branching Ratio ◽  
Transition Matrix Element ◽  
Experimental Result ◽  
Factorization Approach ◽  
Plot Analysis ◽  
Three Body

We investigate the [Formula: see text] decay using Dalitz plot analysis. There are two tree diagrams for this decay mode in the factorization approach: the transition matrix element is factorized into a B0 → π+π− form factor multiplied by [Formula: see text] decay constant; and a [Formula: see text] form factor multiplied by a π+ decay constant. In this research we evaluate the matrix elements of the vector and axial vector currents between the B0 and [Formula: see text] meson states by using the B*+ pole. The contributions of intermediate resonances, such as f0(980), f0(1370), f0(1500) and ρ(770), ρ(1450), ρ(1700), have been taken into account. According to the QCD factorization approach and using Dalitz plot analysis, we calculate the branching ratio of [Formula: see text] decay and obtain 3.81 ± 1.31 × 10−4 and 7.49 ± 2.71 × 10−4 at the μ = mb and 2mb scales, respectively, whereas the experimental result is (6.20 ± 2.20) × 10−4.

scholarly journals Studies of Three-Body Decay ofBtoJ/ψηKandB(Bs)toηcπK*

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Behnam Mohammadi ◽  
Hossein Mehraban
Keyword(s):  
Form Factor ◽  
Dalitz Plot ◽  
Decay Constant ◽  
Transition Matrix Element ◽  
Experimental Results ◽  
Factorization Approach ◽  
Decay Modes ◽  
Qcd Factorization ◽  
Plot Analysis ◽  
Three Body

We investigate theB0→J/ψηK0andB+→J/ψηK+decay by using the Dalitz plot analysis. As we know there are tree, penguin, emission, and emission-annihilation diagrams for these decay modes in the factorization approach. The transition matrix element is factorized into aB→ηKform factor multiplied byJ/ψdecay constant and also aB→Kform factor multiplied byJ/ψηdecay constant. According to QCD factorization approach and using the Dalitz plot analysis, we calculate the branching ratios of theB0→J/ψηK0andB+→J/ψηK+three-body decay in view of theη-η'mixing and obtain the value of the(9.22-1.47+2.67)×10-5, while the experimental results of them are(8±4)×10-5and(10.8±3.3)×10-5, respectively. In this research we also analyze theB(Bs)→ηcπK*decay which is similar to the previous decay, but there is no experimental data for the last decay. Since for calculations of theB(Bs)→ηcπK*decay we use assumptions of theB→J/ψηKdecay, we hope that if this decay will be measured by the LHCb in the future, the experimental results will be in agreement with our calculations.

Three-body decays of Ds+ → η(η′)π+π0

2017 ◽  
Vol 32 (18) ◽  
pp. 1750110
Author(s):  
Amin Asadi ◽  
Hossein Mehraban ◽  
Zahra Shahryari
Keyword(s):  
Simple Model ◽  
Dalitz Plot ◽  
Branching Ratios ◽  
Experimental Results ◽  
Final State ◽  
Factorization Approach ◽  
Decay Modes ◽  
Plot Analysis ◽  
Experimental Values ◽  
Three Body

In this paper, we investigate the three-body decays of [Formula: see text] meson to [Formula: see text] and [Formula: see text] final state mesons, using a simple model based on the framework of the factorization approach. As we know, there are tree and emission-annihilation diagrams for these decay modes in the factorization approach. We calculate the total [Formula: see text] and [Formula: see text] branching ratios, including the nonresonant and resonances contributions, and in view of the [Formula: see text] mixing, by applying the Dalitz plot analysis and obtain [Formula: see text] and [Formula: see text], while the experimental values are [Formula: see text] and [Formula: see text], respectively. The branching ratios obtained in our model are partly compatible with the experimental results.

The branching ratio in the decay of 7Be

1984 ◽  
Vol 62 (11) ◽  
pp. 1139-1144 ◽  
Author(s):  
H. C. Evans ◽  
I. P. Johnstone ◽  
J. R. Leslie ◽  
W. McLatchie ◽  
H.-B. Mak ◽  
...  
Keyword(s):  
Axial Vector ◽  
Branching Ratio ◽  
Experimental Result ◽  
Vector Coupling ◽  
A Value ◽  
Axial Vector Coupling ◽  
Absolute Efficiency ◽  
Γ Rays ◽  
Ge Detector ◽  
The Absolute

A measurement of the branching ratio for electron capture (EC) decay of 7Be to the 478-keV level in 7Li is reported. The reaction 10B(p, α)7Be was used and the 7Be recoils were detected and stopped in a particle detector thin enough to transmit the protons. The absolute γ-ray emission rate of 478-keV γ rays from the implanted detector was determined with a well-shielded intrinsic Ge detector. The absolute efficiency of the Ge detector was established with 22Na, 137Cs, and 88Y standard sources. A value of 11.4 ± 0.7% was obtained for the EC branch to the 478-keV state. Calculations suggest that the axial vector coupling constant GA must be reduced by a factor of 0.94 ± 0.02 to obtain agreement with the experimental result.

scholarly journals Dalitz Plot Analysis of Three-body Charmonium Decays at BABAR

2018 ◽  
Vol 181 ◽  
pp. 01021
Author(s):  
Antimo Palano
Keyword(s):  
Dalitz Plot ◽  
Partial Wave Analysis ◽  
Initial State ◽  
Radiation Process ◽  
Two Photon ◽  
Plot Analysis ◽  
State Radiation ◽  
Model Independent ◽  
Three Body ◽  
Photon Interactions

We present results on the measurement of the I=½ Kπ S-wave through a model independent partial wave analysis of ηc decays to K0sK+π− and K+K−π0 produced in two-photon interactions. We also perform Dalitz plot analyses of the J/Ψ decays to π+π−π0, K+K−π0 and K0sK±π∓ produced in the initial state radiation process.

scholarly journals Probing the ∆U = 0 rule in three body charm decays

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Avital Dery ◽  
Yuval Grossman ◽  
Stefan Schacht ◽  
Abner Soffer
Keyword(s):  
Cp Violation ◽  
Dalitz Plot ◽  
Complete System ◽  
Time Dependent ◽  
Full Generality ◽  
Charm Decays ◽  
Charm Decay ◽  
Plot Analysis ◽  
Three Body

Abstract CP violation in charm decay was observed in the decays D0→ P±P∓ of a D0 meson to two pseudoscalars. When interpreted within the SM, the results imply that the ratio of the relevant rescattering amplitudes has a magnitude and phase that are both of O(1). We discuss ways to probe similar ratios in D0→ V±P∓ decays, where V is a vector that decays to two pseudoscalars, from the Dalitz-plot analysis of time-integrated three-body decays. Compared to two-body decays, three-body decays have the advantage that the complete system can be solved without the need for time-dependent CP violation measurements or use of correlated $$ {D}^0-{\overline{D}}^0 $$ D 0 − D ¯ 0 production. We discuss the decays D0→ π+π−π0 and D0→ K+K−π0 as examples by considering a toy model of only two overlapping charged resonances, treating the underlying pseudo two-body decays in full generality.

scholarly journals CHARM PHYSICS AT BESIII

2014 ◽  
Vol 35 ◽  
pp. 1460412
Author(s):  
GUANG ZHAO ◽  
Keyword(s):  
Dalitz Plot ◽  
Decay Constant ◽  
Rare Decay ◽  
Form Factors ◽  
Charm Physics ◽  
Text Search ◽  
Strong Phase ◽  
Plot Analysis ◽  
Selection Of

We present a selection of recent charm results from the BESIII Collaboration. The topics include measurements of strong phase in D0 → Kπ decay and yCP, decay constant fD+ measurement from D+ → μ+ν, form-factors measurement in D0 → K−e+ν, π−e+ν, Dalitz plot analysis of [Formula: see text], search for D0 → γγ rare decay and Ds decays.

Measurement of CP-Violating Asymmetries in B0 → (ρπ)0 Using a Time-Dependent Dalitz Plot Analysis

2005 ◽  
Vol 20 (15) ◽  
pp. 3551-3553
Author(s):  
◽  
ATTILA MIHALYI
Keyword(s):  
Form Factor ◽  
Maximum Likelihood ◽  
Decay Rate ◽  
Bilinear Form ◽  
Dalitz Plot ◽  
Time Dependent ◽  
Preliminary Measurement ◽  
Plot Analysis ◽  
B Factory ◽  
Babar Detector

We present the preliminary measurement of CP-violating asymmetries in B0 → (ρπ)0 → π+π-π0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 213 million [Formula: see text] decays, collected by the BaBar detector at the PEPII asymmetric-energy B -Factory at SLAC. We measure 16 coefficients of the bilinear form factor terms occurring in the time-dependent decay rate of the B0 meson with the use of a maximum-likelihood fit. The physically relevant CP parameters are derived from these coefficients.

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