Band head spin determination of triaxial superdeformed bands in 163,164,165 Lu through two-parameter formulae

2018 ◽  
Vol 42 (11) ◽  
pp. 114102
Author(s):  
Honey Sharma ◽  
H. M. Mittal
Keyword(s):  
Band Head ◽  
Superdeformed Bands ◽  
Spin Determination ◽  
Two Parameter

Level spins of superdeformed bands in A ∼ 80 mass region

2016 ◽  
Vol 25 (06) ◽  
pp. 1650038 ◽  
Author(s):  
Anshul Dadwal ◽  
H. M. Mittal ◽  
Neha Sharma
Keyword(s):  
Mass Region ◽  
Band Head ◽  
Model Parameters ◽  
Mean Square ◽  
Transition Energies ◽  
Fitting Method ◽  
Superdeformed Bands ◽  
Variable Moment ◽  
Two Parameter ◽  
Good Agreement

The models variable moment of inertia (VMI), two-parameter [Formula: see text] formula and Harris [Formula: see text] expansion have been applied to 16 rotational superdeformed bands in the [Formula: see text] mass region to obtain band head spin [Formula: see text]. The band head spins of these 16 bands in the [Formula: see text] mass region are predicted by least-squares fitting method. Intraband [Formula: see text]-rays energies are fitted in these models to extract model parameters so as to obtain a minimum root mean square (RMS) deviation between calculated and the observed transition energies. The calculated transition energies depend upon the prescribed spins. When a legitimate band head spin is assigned, the calculated transition energies are in good agreement with the observed transition energies.

Determination of catastrophic sets of a tubular chemical reactor by two-parameter continuation method

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Marek Berezowski
Keyword(s):  
Continuation Method ◽  
Extreme Points ◽  
Chemical Reactor ◽  
Stationary States ◽  
Parameter Continuation Method ◽  
It Systems ◽  
Parametric Continuation ◽  
Parameter Continuation ◽  
Two Parameter

AbstractThe work relates to development and presentation a two-parameter continuation method for determining catastrophic sets of stationary states of a tubular chemical reactor with mass recycle. The catastrophic set is a set of extreme points occurring in the bifurcation diagrams of the reactor. There are many large IT systems that use the parametric continuation method. The most popular is AUTO’97. However, its use is sometimes not convenient. The method developed in this work allows to eliminate the necessity to use huge IT systems from the calculations. Unlike these systems, it can be inserted into the program as a short subroutine. In addition, this method eliminates time-consuming iterations from the calculations.

Spin determination of deeply-bound hole states from ( $$\vec d$$ ,3He) reactions

1980 ◽  
Vol 297 (4) ◽  
pp. 307-309 ◽  
Author(s):  
A. Stuirbrink ◽  
G. J. Wagner ◽  
K. T. Kn�pfle ◽  
Liu Ken Pao ◽  
G. Mairle ◽  
...  
Keyword(s):  
Spin Determination

Spin determination of the 12C + 12C resonance at Ec.m. = 6.25 MeV

1977 ◽  
Vol 67 (3) ◽  
pp. 262-264 ◽  
Author(s):  
W. Galster ◽  
W. Treu ◽  
P. Dück ◽  
H. Fröhlich ◽  
H. Voit
Keyword(s):  
Spin Determination

WISE data and sparse photometry used for shape reconstruction of asteroids

2015 ◽  
Vol 10 (S318) ◽  
pp. 170-176 ◽  
Author(s):  
Josef Ďurech ◽  
Josef Hanuš ◽  
Victor M. Alí-Lagoa ◽  
Marco Delbo ◽  
Dagmara A. Oszkiewicz
Keyword(s):  
Rotation Period ◽  
Shape Reconstruction ◽  
Physical Models ◽  
Inversion Method ◽  
Wide Field ◽  
Reflected Light ◽  
Space Data ◽  
Spin Determination ◽  
Infrared Survey

AbstractAsteroid disk-integrated sparse-in-time photometry can be used for determination of shapes and spin states of asteroids by the lightcurve inversion method. To clearly distinguish the correct solution of the rotation period from other minima in the parameter space, data with good photometric accuracy are needed. We show that if the low-quality sparse photometry obtained from ground-based astrometric surveys is combined with data from the Wide-field Infrared Survey Explorer (WISE) satellite, the correct rotation period can be successfully derived. Although WISE observed in mid-IR wavelengths, we show that for the period and spin determination, these data can be modelled as reflected light. The absolute fluxes are not required since only relative variation of the flux over the rotation is sufficient to determine the period. We also discuss the potential of combining all WISE data with the Lowell photometric database to create physical models of thousands of asteroids.

Determination of Discharge Coefficient for Ball Valves With Calibrated Inserts

2003 ◽  
Author(s):  
Gino James Rouss ◽  
William S. Janna
Keyword(s):  
Discharge Coefficient ◽  
Ball Valve ◽  
The Body ◽  
Orifice Diameter ◽  
Control Element ◽  
Flow Parameters ◽  
Experimental Process ◽  
Power Law Equation ◽  
Two Parameter

The valve coefficient was measured for 1/2-, 3/4- and 1 nominal ball valves. It was desired to use a recently designed orifice insert with these valves to obtain smaller valve coefficients. Orifice inserts were placed into the body of a threaded ball valve just upstream of the spherical control element. The valve coefficient was measured for each insert, and an expression was determined to relate the orifice diameter to other pertinent flow parameters. Two groups were chosen to correlate the collected data, and a graph was developed. These results can be used as an aid in sizing the orifice insert needed to obtain the desired valve coefficient. The study has shown that a two parameter power law equation can be used as an aid in predicting the desired results. Knowing pipe size and schedule, the diameter of the orifice insert needed to obtain the desired valve coefficient can be approximated with minimum error. An error analysis performed on the collected data shows that the results are highly accurate, and that the experimental process is repeatable.

scholarly journals Observables for model-independent detections of Z′ boson at the ILC

2015 ◽  
Vol 30 (16) ◽  
pp. 1550087
Author(s):  
V. Skalozub ◽  
I. Kucher
Keyword(s):  
Cross Section ◽  
Z Boson ◽  
Axial Vector ◽  
Effective Lagrangian ◽  
The Standard Model ◽  
Model Predictions ◽  
Model Independent ◽  
Vector Formula ◽  
Two Parameter

The integral observables for model-independent detections of Abelian Z′ gauge boson in e+e- → μ+μ-(τ+τ-) process with unpolarized beams at the ILC energies are proposed. They are based on the differential cross-section of deviations from the standard model predictions calculated with a low energy effective Lagrangian and taking into consideration the relations between the Z′ couplings to the fermions derived already. Due to these relations, the cross-section exhibits angular distribution giving a possibility for introducing one- or two-parameter observables which effectively fit the mass mZ′, the axial-vector [Formula: see text] and the product of vector couplings vevμ(vevτ). A discovery reach for the Z′ is estimated for two of introduced observables. Determination of the basic Z′ model is discussed. Comparison with other results and approaches is given.

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