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Your search keyword '"Andreev, A.V."' showing total 3 results
Start Over Author "Andreev, A.V." Publication Type Electronic Resources
3 results on '"Andreev, A.V."'

1. 178Hg and asymmetric fission of neutron-deficient pre-actinides

Author

Jhingan, A., Schmitt, Christelle, Lemasson, Alban, Biswas, Sovan, Kim, Y.H., Ramos, D., Andreyev, Andrei, Curien, Dominique, Ciemała, M., Clément, E., Dorvaux, O., De Canditiis, B., Didierjean, F., Duchene, D., Dudouet, J, Frankland, J., Fremont, G., Goupil, J., Jacquot, B, Raison, C., Ralet, D., Retailleau, B.-M., Stuttge, Louise, Tsekhanovich, I., Andreev, A.V., Goriely, Stéphane, Hilaire, Stéphane, Lemaître, Jean-François, Moller, P., Schmidt, K.-H., Jhingan, A., Schmitt, Christelle, Lemasson, Alban, Biswas, Sovan, Kim, Y.H., Ramos, D., Andreyev, Andrei, Curien, Dominique, Ciemała, M., Clément, E., Dorvaux, O., De Canditiis, B., Didierjean, F., Duchene, D., Dudouet, J, Frankland, J., Fremont, G., Goupil, J., Jacquot, B, Raison, C., Ralet, D., Retailleau, B.-M., Stuttge, Louise, Tsekhanovich, I., Andreev, A.V., Goriely, Stéphane, Hilaire, Stéphane, Lemaître, Jean-François, Moller, P., and Schmidt, K.-H.

Abstract

Fission at low excitation energy is an ideal playground to probe the impact of nuclear structure on nucleardynamics. While the importance of structural effects in the nascent fragments is well established in the(trans-)actinide region, the observation of asymmetric fission in several neutron-deficient pre-actinides canbe explained by various mechanisms. To deepen our insight into that puzzle, an innovative approach basedon inverse kinematics and an enhanced version of the VAMOS++ heavy-ion spectrometer was implementedat the GANIL facility, Caen. Fission of 178Hg was induced by fusion of 124Xe and 54Fe. The two fragmentswere detected in coincidence using VAMOS++ supplemented with a new SEcond Detection arm. For the firsttime in the pre-actinide region, access to the pre-neutron mass and total kinetic energy distributions, and thesimultaneous isotopic identification of one the fission fragment, was achieved. The present work describes theexperimental approach, and discusses the pre-neutron observables in the context of an extended asymmetricfissionisland located southwest of 208Pb. A comparison with different models is performed, demonstrating theimportance of this new asymmetric-fission island for elaborating on driving effects in fission., info:eu-repo/semantics/published

Published
2022

2. Methods of Mathematical Modeling of the Action of a Medium on a Conical Body

Author

Andreev A.V., Shamolin M.V., Andreev A.V., and Shamolin M.V.

Abstract

We consider a mathematical model of a plane-parallel action of a medium on a rigid body whose surface has a part which is a circular cone. We present a complete system of equations of motion under the quasi-stationarity conditions. The dynamical part of equations of motion form an independent system that possesses an independent second-order subsystem on a two-dimensional cylinder. We obtain an infinite family of phase portraits on the phase cylinder of quasi-velocities corresponding to the presence in the system of only a nonconservative pair of forces. © 2017, Springer Science+Business Media New York.

3. Simulation of the action of a medium on a conical body and the family of phase portraits in the space of quasivelocities

Author

Andreev A.V., Shamolin M.V., Andreev A.V., and Shamolin M.V.

Abstract

A mathematical model of the effect of a medium on a homogeneous rigid body whose outer surface includes a circumferential cone is considered. The complete system of equations of motion under quasistationarity conditions is given. In the dynamic part forming an independent third-order system, an independent second-order subsystem is distinguished. A new two-parameter family of phase portraits on the phase cylinder of quasivelocities is obtained. © 2015, Pleiades Publishing, Ltd.

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