NDLI: Particular aspects related to the even-odd effects in prompt emission

Content Provider	Springer Nature Link
Author	Tudora, A. Hambsch, F. J. Giubega, G.
Copyright Year	2016
Abstract	The present paper focuses on several particular aspects related to the even-odd effects in prompt emission in fission synthesized as follows: 1) The even-odd effects in prompt emission are the result of two contributions, a dominant one due to the even-odd nuclear character of fission fragments reflected in their properties and consequently in the emitted prompt neutrons and gammas, and a weaker contribution brought by the even-odd effect in the fragment distribution (over which the prompt emission matrices are averaged). Oscillations with a periodicity of about 5 mass units are present in different prompt emission quantities corresponding to even-Z and odd-Z fragmentations independent of the size of the even-odd effect in the charge yield Y(Z) . 2) The oscillation periodicity $\Delta A\approx 5$ in the charge polarization $\Delta Z(A)$ and rms(A) of the isobaric charge distribution as well as in the fragment mass yields Y(A) of even-Z and odd-Z fragmentations is also due to the periodicity of nuclear properties being independent of the size of the even-odd effect in Y(Z) . Only the magnitude of the oscillation amplitudes of $\Delta Z(A)$ , rms(A) and Y(A) of even-Z and odd-Z fragmentations reflects in different ways the size of the even-odd effect in Y(Z) . 3) Not only the basic features of the global even-odd effect in fragment yields and prompt emission are the same but also the local even-odd effect in prompt emission --reported for the first time in this paper-- exhibits the same behaviour as the experimental data of the local even-odd effect in Y(Z) . 4) A correlation between the even-odd effect in Y(Z) and prompt emission quantities (e.g., $\nu(Z)$ exists. This interrelation is through the nuclear properties of the fission fragments. The presence of oscillations with a period $\Delta A\approx 5$ in both Y(A) and prompt emission quantities corresponding to even-Z and odd-Z fragmentations cannot be directly linked to the size of the even-odd effect in Y(Z) .
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	14346001
Journal	The European Physical Journal A - Hadrons and Nuclei
Volume Number	52
Issue Number	6
e-ISSN	1434601X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-06-29
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nuclear Physics, Heavy Ions, Hadrons Particle and Nuclear Physics Nuclear Fusion
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics

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