Dynamical. and statistical fragment emission properties in 200 A MeV Ne20+Ar40 collisions
(2006) In Nuclear Physics, Section A 764. p.1523 Abstract
 Dynamical and statistical fragment emission processes in 200 A MeV Ne20 + Ar40 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 clusterjet target of the CELSIUS storage ring, for the first time with an internal, ultrahigh vacuum (UHV) compatible detector system (CHICSi). Energy and angular dependence in Z and A distributions are not reproduced by a singlestep model, e.g., those based on molecular dynamics (MD), but require a complete threestep model. We use here the intranuclear cascade+ statistical multifragmentation + secondary evaporation model (CFEM). The angular... (More)
 Dynamical and statistical fragment emission processes in 200 A MeV Ne20 + Ar40 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 clusterjet target of the CELSIUS storage ring, for the first time with an internal, ultrahigh vacuum (UHV) compatible detector system (CHICSi). Energy and angular dependence in Z and A distributions are not reproduced by a singlestep model, e.g., those based on molecular dynamics (MD), but require a complete threestep model. We use here the intranuclear cascade+ statistical multifragmentation + secondary evaporation model (CFEM). The angular dependence of isobaric ratios, like He6/Li6 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. (Less)
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https://lup.lub.lu.se/record/421251
 author
 organization
 publishing date
 2006
 type
 Contribution to journal
 publication status
 published
 subject
 keywords
 NUCLEAR REACTIONS Ar40(Ne20, measured, multifragmentation model, Cascade plus statistical, deduced reaction mechanism features, isotopic yields and ratios, fragments charge and angular distributions, E=200 MeV/nucleon, X)
 in
 Nuclear Physics, Section A
 volume
 764
 pages
 15  23
 publisher
 Elsevier
 external identifiers

 wos:000234580100002
 scopus:29744442269
 ISSN
 03759474
 DOI
 10.1016/j.nuclphysa.2005.09.009
 language
 English
 LU publication?
 yes
 id
 399c5c26402d4151b1b99c4d2e259c45 (old id 421251)
 date added to LUP
 20160401 15:53:19
 date last changed
 20210623 04:38:56
@article{399c5c26402d4151b1b99c4d2e259c45, abstract = {Dynamical and statistical fragment emission processes in 200 A MeV Ne20 + Ar40 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 clusterjet target of the CELSIUS storage ring, for the first time with an internal, ultrahigh vacuum (UHV) compatible detector system (CHICSi). Energy and angular dependence in Z and A distributions are not reproduced by a singlestep model, e.g., those based on molecular dynamics (MD), but require a complete threestep model. We use here the intranuclear cascade+ statistical multifragmentation + secondary evaporation model (CFEM). The angular dependence of isobaric ratios, like He6/Li6 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.}, author = {Carlén, Lars and Golubev, Pavel and Jakobsson, Bo and Avdeichikov, Vladimir and Ekstrom, C and Friden, CJ and Kolozhvari, A and Westerberg, L and Siwek, A and Aleklett, K and Persson, H and Rouki, C and Botvina, AS and Bondorf, JP and Pshenichnov, IA and Mishustin, IN}, issn = {03759474}, language = {eng}, pages = {1523}, publisher = {Elsevier}, series = {Nuclear Physics, Section A}, title = {Dynamical. and statistical fragment emission properties in 200 A MeV Ne20+Ar40 collisions}, url = {http://dx.doi.org/10.1016/j.nuclphysa.2005.09.009}, doi = {10.1016/j.nuclphysa.2005.09.009}, volume = {764}, year = {2006}, }