Results 81 to 90 of about 536,195 (200)

Dynamical phase transitions in quantum mechanics

EPJ Web of Conferences, 2012
The nucleus is described as an open many-body quantum system with a non-Hermitian Hamilton operator the eigenvalues of which are complex, in general. The eigenvalues may cross in the complex plane (exceptional points), the phases of the eigenfunctions ...
Rotter Ingrid
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A new formula for nuclear level density

Physics Letters B, 1982
Abstract A new formula for the nuclear level density is derived without the use of the saddle-point approximation. The dependence of the level density on the finite dimension of the vector space is explicitly seen. The effect of the neglect of higher moments of the level-density distribution in the saddle-point method is observed at low temperature.
M. Rajasekaran, V. Devanathan
openaire   +1 more source

Theoretical study of cross sections of proton-induced reactions on cobalt

Nuclear Engineering and Technology, 2018
Nuclear fusion may be among the strongest sustainable ways to replace fossil fuels because it does not contribute to acid rain or global warming. In this context, activated cobalt materials in corrosion products for fusion energy are significant in ...
Mustafa Yiğit
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Long-standing problem: The nuclear level density angular-momentum dependence and isomeric data assessment

Physical Review Research
Recent ^{91,92,93}Tc activation for deuterons incident on ^{nat}Mo has become a challenge for the nuclear level density (NLD) angular-momentum dependence. Actually, replacement of the moment of inertia rigid-body value I_{r} by half of it, within a given
M. Avrigeanu, E. Šimečková, J. Mrázek, X. Ledoux, J. Novak, M. Štefánik, M. Ansorge, A. Cassisa, J. Kozic, C. Costache, V. Avrigeanu   +10 more
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Imprint of pairing correlation in (n, γ) and Maxwellian-averaged cross sections of an odd-odd 166Ho nucleus

Physics Letters B
The present paper investigates the impact of pairing correlation on the nuclear level density (NLD) and radiative strength function (RSF) of an odd-odd and rare-earth 166Ho nucleus. By employing the exact thermal pairing (EP) solution in conjunction with
Le Tan Phuc, Tran Vu Dong, Nguyen Dinh Dang, Bui Minh Hue, Le Thi Quynh Huong, Balaram Dey, Nguyen Ngoc Anh, Nguyen Quang Hung   +7 more
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DFT STUDY OF THE TUBULAR SIZE EFFECTS ON THE PROPERTIES OF ZIGZAG BORON NITRIDE NANOTUBES

Studia Universitatis Babes-Bolyai Chemia, 2017
Density functional theory (DFT) studies were performed on representative zigzag models of boron nitride nanotubes (BNNTs) with different structural sizes. To achieve minimized-energy structures and their properties, first, optimization calculations were
Fatemeh SHEKHOLIA LAVASANI, Abolghasem SHAMELI, Ebrahim BALALI   +2 more
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Properties of warm nuclei in the quasi-continuum

EPJ Web of Conferences, 2010
Nuclear thermodynamic quantities are extracted from nuclear level densities measured with the CACTUS detector array at the Oslo Cyclotron Laboratory. The experiments are performed with light-particle inelastic or transfer reactions.
Voinov A., Toft H.K., Nyhus H.T., Siem S., Mitchell G.E., Bürger A., Larsen A.C., Algin E., Agvaanluvsan U., Guttormsen M.   +9 more
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Stochastic estimation of nuclear level density in the nuclear shell model; An Application to parity-dependent level density in 58Ni [PDF]

Nuclear level density plays an important role in applications to nuclear energy and nuclear astrophysics, dominating neutron-capture cross sections. In this paper, we propose a new, practical and accurate method of estimating nuclear level density within
水崎 高浩, Futamura, Yasunori, Utsuno, Yutaka, Otsuka, Takaharu, 櫻井 鉄也, Shimizu, Noritaka, Sakurai, Tetsuya, 清水 則孝, 大塚 孝治, 宇都野 穣, 二村 保徳, Mizusaki, Takahiro   +11 more
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Vibrational Enhancement of Nuclear Level Density within Response Function Method [PDF]

, 2020
. The main results are summarized on the development of the response function method for a description of the vibrational state effect on nuclear level density. The enhancement factor is calculated and compared within different approaches. The results of
O M Gorbachenko, V A Plujko
core  

Moments Method for Shell-Model Level Density [PDF]

, 2016
. The modern form of the Moments Method applied to the calculation of the nuclear shell-model level density is explained and examples of the method at work are given.
R A Sen’kov, Zelevinsky, V., Horoi, M., V Zelevinsky, M Horoi, Sen′kov, Roman A.   +5 more
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