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Dynamical. and stat...
Dynamical. and statistical fragment emission properties in 200 A MeV Ne-20+Ar-40 collisions
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- Carlén, Lars (author)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Golubev, Pavel (author)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Jakobsson, Bo (author)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Avdeichikov, Vladimir (author)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Ekstrom, C (author)
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Friden, CJ (author)
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Kolozhvari, A (author)
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Westerberg, L (author)
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Siwek, A (author)
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Aleklett, K (author)
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Persson, H (author)
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Rouki, C (author)
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Botvina, AS (author)
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Bondorf, JP (author)
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Pshenichnov, IA (author)
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Mishustin, IN (author)
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(creator_code:org_t)
- Elsevier BV, 2006
- 2006
- English.
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In: Nuclear Physics, Section A. - : Elsevier BV. - 0375-9474. ; 764, s. 15-23
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Abstract
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- Dynamical and statistical fragment emission processes in 200 A MeV Ne-20 + Ar-40 collisions are well probed by measurements of charge (Z), mass (A) and momentum vector ((p) over right arrow) of all fragments in large parts of the available momentum space. We present such data obtained at the cluster-jet target of the CELSIUS storage ring, for the first time with an internal, ultra-high vacuum (UHV) compatible detector system (CHICSi). Energy and angular dependence in Z and A distributions are not reproduced by a single-step model, e.g., those based on molecular dynamics (MD), but require a complete three-step model. We use here the intranuclear cascade+ statistical multifragmentation + secondary evaporation model (CFEM). The angular dependence of isobaric ratios, like He-6/Li-6 at low emission velocities and temperatures extracted from isotopic (double) ratios, do exhibit differences, even from this model. These differences, which call for adjustment of model parameters, are discussed. (c) 2005 Elsevier B.V. All rights reserved.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- NUCLEAR REACTIONS Ar-40(Ne-20
- measured
- multifragmentation model
- Cascade plus statistical
- deduced reaction mechanism features
- isotopic yields and ratios
- fragments charge and angular distributions
- E=200 MeV/nucleon
- X)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Carlén, Lars
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Golubev, Pavel
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Jakobsson, Bo
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Avdeichikov, Vla ...
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Ekstrom, C
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Friden, CJ
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show more...
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Kolozhvari, A
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Westerberg, L
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Siwek, A
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Aleklett, K
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Persson, H
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Rouki, C
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Botvina, AS
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Bondorf, JP
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Pshenichnov, IA
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Mishustin, IN
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
- Articles in the publication
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Nuclear Physics, ...
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Lund University