Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ahmed Abdul-Razzaq Selman"'
Autor:
Ahmed Abdul-Razzaq Selman
Publikováno v:
Iraqi Journal of Physics, Vol 9, Iss 16 (2011)
In an earlier paper, the basic analytical formula for particle-hole nuclear state densities was derived for non-Equidistant Spacing Model (non-ESM) approach. In this paper, an extension of the former equation was made to include pairing. Also a sugge
Externí odkaz:
https://doaj.org/article/7561f65e04964cb084e8ae42f20aee25
Autor:
Ahmed Abdul-Razzaq Selman
Publikováno v:
Iraqi Journal of Physics, Vol 9, Iss 14 (2011)
Nuclear emission rates for nucleon-induced reactions are theoretically calculated based on the one-component exciton model that uses state density with non-Equidistance Spacing Model (non-ESM). Fair comparison is made from different state density val
Externí odkaz:
https://doaj.org/article/e2ac37669a0c4b729e403ca1474a9ad5
Autor:
Ahmed Abdul-Razzaq Selman
Publikováno v:
Iraqi Journal of Physics, Vol 8, Iss 13 (2010)
The basic analytical formula for particle-hole state densities is derived based on the non-Equidistant Spacing Model (non-ESM) for the single-particle level density (s.p.l.d.) dependence on particle excitation energy u. Two methods are illustrated in
Externí odkaz:
https://doaj.org/article/6cad4910254b4f1f84053ee8b825c839
Publikováno v:
Baghdad Science Journal, Vol 5, Iss 2 (2008)
The intensities of the positron annihilation lifetime components are shown to be related to the free volume model, and the theoretical value of the ratio between the singlet to the triplet state intensities, described by the ratio η, is shown to fol
Externí odkaz:
https://doaj.org/article/e33a5320acd64684bf69e0dffb875a0b
Autor:
Ahmed Abdul-Razzaq Selman
Publikováno v:
Iraqi Journal of Physics. 21:21-33
At thermal energies near stellar conditions, nuclear reactions are sensitive to resonance strengths of the nuclear reaction cross-section. In this paper, the resonance strengths of nuclear reaction were evaluated numerically by means of nuclear react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a52834b58281d8160af505daa16ff8bc
https://doi.org/10.30723/ijp.v21i1.1086
https://doi.org/10.30723/ijp.v21i1.1086
Autor:
Noor Alhuda Kamel1 noornoorkamel1994@yahoo.com, Ahmed Abdul-Razzaq Selman1
Publikováno v:
Iraqi Journal of Science. 2019, Vol. 60 Issue 2, p411-425. 15p.
Autor:
Ahmed Abdul-Razzaq Selman, Lana Talib
Publikováno v:
Iraqi Journal of Science.
Both 13C 16O and 22Ne 25Mg reactions perform a cosmic role in the production of neutrons in AGB stars, which significantly contributes to the nucleosynthesis via the s-process. The astrophysical S-factor for both reactions is calculated in this resea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab9d1b37449ef7e81f9e7e18d27cec42
https://doi.org/10.24996/10.24996/ijs.2021.62.5.36
https://doi.org/10.24996/10.24996/ijs.2021.62.5.36
Autor:
Ahmed Abdul-Razzaq Selman, Lana T. Ali
Publikováno v:
Journal of Physics: Conference Series. 1818:012110
Initially-produced isotopes during the course of the s-process have a significant impact on the continuity and branching network of this process. Such isotopes can undergo various neutron capture mechanisms, of which (n, γ) is important. In this res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fae8f283c8b03ec4715d5030e4e76ab
https://doi.org/10.1088/1742-6596/1818/1/012110
https://doi.org/10.1088/1742-6596/1818/1/012110
Publikováno v:
IOSR Journal of Applied Physics. :43-52
Nuclear state density was calculated for the nuclear reaction inside the core of three different main- sequence stars namely, Sun, Sirius and Vega. The selected nuclei for present calculation were H 4 , C 12 , N 14 , and O 16 ; and the state density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b68b3332dc038eca4b88b2caf4be2b6
https://doi.org/10.9790/4861-0804014352
https://doi.org/10.9790/4861-0804014352
Publikováno v:
Journal of Al-Nahrain University Science. 12:68-75
The different interactions between cometary tail and solar wind ions are studied in the present paper based on three-dimensional Lax explicit method. The model used in this research is based on the continuity equations describing the cometary tail-so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::615e5a195e82c5432b1750699f212345
https://doi.org/10.22401/jnus.12.2.07
https://doi.org/10.22401/jnus.12.2.07