scholarly journals The decay τ → K0K−ντ in the extended Nambu–Jona-Lasinio model

2016 ◽  
Vol 31 (23) ◽  
pp. 1650138 ◽  
Author(s):  
M. K. Volkov ◽  
A. A. Pivovarov
Keyword(s):  
Experimental Data ◽  
Satisfactory Agreement ◽  
Vector Mesons ◽  
Intermediate Vector

The full and differential widths of the decay [Formula: see text] are calculated in the framework of the extended Nambu–Jona-Lasinio model.The contributions of the subprocesses with the intermediate vector mesons [Formula: see text](770) and [Formula: see text](1450) are taken into account. The obtained results are in satisfactory agreement with the experimental data.

scholarly journals The processes e+e−→ K±(K∗∓(892),K∗∓(1410)) and e+e−→ (η,η′(958))(ϕ(1020),ϕ(1680)) in the extended Nambu–Jona-Lasinio model

2016 ◽  
Vol 31 (27) ◽  
pp. 1650155 ◽  
Author(s):  
M. K. Volkov ◽  
A. A. Pivovarov
Keyword(s):  
Experimental Data ◽  
Excited States ◽  
Satisfactory Agreement ◽  
Cross Sections ◽  
Vector Mesons ◽  
The Cross ◽  
Intermediate Vector

The processes [Formula: see text] and [Formula: see text] are calculated in the framework of the extended Nambu–Jona-Lasinio model. The intermediate vector mesons [Formula: see text], [Formula: see text], [Formula: see text] and their first radially excited states are taken into account. The obtained results are in satisfactory agreement with the experimental data. The predictions for the cross-sections of the reactions [Formula: see text], [Formula: see text] and [Formula: see text] were made.

scholarly journals The decay τ → K−π0ντ in the Nambu–Jona-Lasinio model

2016 ◽  
Vol 31 (07) ◽  
pp. 1650043 ◽  
Author(s):  
M. K. Volkov ◽  
A. A. Pivovarov
Keyword(s):  
Experimental Data ◽  
Satisfactory Agreement ◽  
Njl Model ◽  
Vector Formula ◽  
Intermediate Vector

In this paper, the width of the decay [Formula: see text] is calculated in the framework of the Nambu–Jona-Lasinio (NJL) model. The contributions of the intermediate vector [Formula: see text] and scalar [Formula: see text] mesons are taken into account. It is shown that the main contribution to the width of this decay is given by the subprocesses with the intermediate [Formula: see text]-boson and vector [Formula: see text] meson. The scalar channel with the intermediate [Formula: see text] meson gives an insignificant contribution. In Appendix A, it is shown that the contribution of the subprocess with the intermediate [Formula: see text] meson is negligible as well. The obtained results are in satisfactory agreement with the experimental data.

SEMIEMPIRICAL SCF–LCAO–MO TREATMENT OF THIOPHENE, FURAN, AND PYRROLE

1965 ◽  
Vol 43 (5) ◽  
pp. 1569-1576 ◽  
Author(s):  
N. Solony ◽  
F. W. Birss ◽  
John B. Greenshields
Keyword(s):  
Experimental Data ◽  
Satisfactory Agreement ◽  
Electronic Structures ◽  
Spectroscopic Data ◽  
Variable Parameter ◽  
Coulomb Repulsion ◽  
Resonance Integral ◽  
Electronic Transitions ◽  
The Core ◽  
Lcao Mo

The semiempirical SCF–LCAO–MO method of Pariser–Parr–Pople is utilized in the study of the π-electronic structures of thiophene, furan, and pyrrole. The core Hamiltonian expansion contains a Uz++ term, the potential due to the ionized hetero-atom contributing two electrons to the π-system. The γzz, one-center coulomb repulsion integral for the hetero-atom is evaluated from the experimental spectroscopic data only. With the resonance integral βczc as the only variable parameter, the calculated π*–π electronic transitions are in a satisfactory agreement with the experimental data.

Gas transport in a model derived from Hansen-Ampaya anatomical data of the human lung

1976 ◽  
Vol 41 (1) ◽  
pp. 115-119 ◽  
Author(s):  
M. Paiva ◽  
L. M. Lacquet ◽  
L. P. van der Linden
Keyword(s):  
Experimental Data ◽  
Transport Equation ◽  
Satisfactory Agreement ◽  
Dead Space ◽  
Empirical Formula ◽  
Molecular Diffusion ◽  
Human Lung ◽  
Gas Transport ◽  
Gas Mixing ◽  
Anatomical Data

The anatomical data of the human lung published by Hansen and Ampaya are used in a model of gas transport in the lung. The Bohr dead space is calculated from solutions of a transport equation where diffusivity is given by an empirical formula obtained by Sherer et al. A satisfactory agreement is found with experimental data obtained from simultaneous washouts of H2 and SF6 for respiratory frequencies ranging between 15 and 60 min-1 and tidal volumes between 200 and 1,800 ml. The results support the idea that molecular diffusion is the main but not the only physical phenomenom which intervenes in gas mixing during breathing.

Study of photofission fragment mass distribution of 232Th, 238U, 237Np and 240Pu isotopes in various γ-ray energies

2018 ◽  
Vol 27 (03) ◽  
pp. 1850018 ◽  
Author(s):  
M. R. Pahlavani ◽  
P. Mehdipour
Keyword(s):  
Experimental Data ◽  
Satisfactory Agreement ◽  
Mass Distribution ◽  
Fission Fragment ◽  
Scission Point ◽  
Fragment Mass ◽  
Pu Isotopes ◽  
Induced Fission ◽  
Γ Ray ◽  
Peak To Valley Ratio

Photofission of [Formula: see text]Th, [Formula: see text]U, [Formula: see text]Np and [Formula: see text]Pu isotopes are investigated. Modified version of Gorodisskiy approach that is developed to study the neutron-induced fission are employed to simulate fission fragment mass distribution for these isotopes in different energies. The effect of emitted neutron prior to scission point is studied. Peak to valley ratio is also extracted. Obtained results using this approach are compared with original Gorodisskiy model as well as available experimental data. Satisfactory agreement is achieved between theoretical and experimental data especially in medium and low [Formula: see text]-ray energies than original formalism of Gorodisskiy.

The evolution and bifurcation of a pendant drop

1994 ◽  
Vol 278 ◽  
pp. 83-100 ◽  
Author(s):  
R. M. S. M. Schulkes
Keyword(s):  
Experimental Data ◽  
Growth Rate ◽  
Satisfactory Agreement ◽  
Growth Rates ◽  
Pendant Drop ◽  
Large Growth ◽  
Comparison With Experimental Data

In this paper we calculate how a pendant drop evolves at the end of a nozzle when the volume of the drop increases steadily with time. We find that the character of the evolution is strongly dependent on the growth rate of the drop and the radius of the nozzle. Typically we find that once the drop has become unstable, two bifurcations occur shortly after each other when the growth rate of the drop is slow. For large growth rates the bifurcations are well-separated in time. We are able to calculate the volumes of the drops after the bifurcations. A comparison with experimental data shows a satisfactory agreement.

scholarly journals GENERALIZED POLARIZABILITY OF NEUTRAL PIONS OF THE PROCESS e-e+ →π0π0γ IN THE NJL MODEL

2011 ◽  
Vol 26 (20) ◽  
pp. 3337-3346
Author(s):  
A. I. AHMADOV ◽  
E. A. KURAEV ◽  
M. K. VOLKOV
Keyword(s):  
Dalitz Plot ◽  
Neutral Pion ◽  
Vector Mesons ◽  
Annihilation Channel ◽  
Neutral Pions ◽  
Njl Model ◽  
Electron Positron ◽  
Intermediate Vector

Differential distributions in the π0π0γ system created in the annihilation channel of an electron–positron collision are considered. The energy fractions of the pions (Dalitz-plot) distribution are presented in a general form and in approximation of intermediate vector mesons (excited and ordinary ones). It is pointed out that in relevant experiments the generalized polarizability of the neutral pion can be measured. Numerical illustrations are presented.

scholarly journals Spin observables of (d,p) reactions off $^{12}$C within the Paris potential

2019 ◽  
Vol 128 (1D) ◽  
Author(s):  
Hào Viết Nhân Trần ◽  
Nguyên Khắc Hồ ◽  
Vinh Nguyễn Thành Phạm
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Satisfactory Agreement ◽  
Analyzing Powers ◽  
Spin Observables ◽  
Paris Potential ◽  
Rank One ◽  
Three Body

Deuteron elastic scattering off $^{12}$C is described in the framework of three-body Faddeev-type equations. Analyzing powers are calculated using the PEST16 potential which is a separable rank-one representation of the Paris potential. Satisfactory agreement with the experimental data is found.

scholarly journals General principles for describing electronic and proton multiple scattering processes in solids

2021 ◽  
Vol 2144 (1) ◽  
pp. 012016
Author(s):  
V P Afanas’ev ◽  
L G Lobanova ◽  
D N Selyakov ◽  
M A Semenov-Shefov
Keyword(s):  
Experimental Data ◽  
Distribution Function ◽  
Analytical Solution ◽  
Multiple Scattering ◽  
Satisfactory Agreement ◽  
Length Distribution ◽  
Energy Spectra ◽  
Stopping Power ◽  
Reflected Light ◽  
Light Ions

Abstract Analytical solution for the reflected light ions Pass Length Distribution Function (PLDF) equation is obtained. Reflected ions energy spectra calculated on the basis of the developed method shows satisfactory agreement with experimental data. The effectiveness of the developed methodology in the procedure for verifying the stopping power value is indicated.

scholarly journals Strong coupling constants of doubly heavy baryons with vector mesons in QCD

2020 ◽  
Vol 80 (10) ◽  
Author(s):  
T. M. Aliev ◽  
K. Şimşek
Keyword(s):  
Experimental Data ◽  
Strong Coupling ◽  
Light Cone ◽  
Particle Distribution ◽  
Sum Rules ◽  
Magnetic Coupling ◽  
Coupling Constants ◽  
Vector Mesons ◽  
Heavy Baryons ◽  
Light Vector

AbstractUsing the most general form of the interpolating current for baryons, the strong electric and magnetic coupling constants of light vector mesons $$ \rho $$ ρ and $$ K^* $$ K ∗ with doubly heavy baryons are computed within the light-cone sum rules. We consider 2- and 3-particle distribution amplitudes of the aforementioned vector mesons. The obtained results can be useful in the analysis of experimental data on the properties of doubly heavy baryons conducted at LHC.

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