In reply to Jones Beene's message of Fri, 19 Dec 2014 17:27:27 -0800: Hi, [snip]
The term "Cold Fusion" has been used in superheavy atom production circles for years. It has nothing to do with what we know as CF. >Aside from the fact that this could be attempted humor published by two >Iranian jokers, Wiki does have an entry on element 110 and it kinda fits their >suggestion . > > > >Wiki: Darmstadtium was first created on November 9, 1994, at the Institute for >Heavy Ion Research (Gesellschaft für Schwerionenforschung) in Darmstadt, >Germany, by Armbruster and Münzenberg The team bombarded a lead-208 target >with accelerated nuclei of nickel-62 > > > >The idea is nickel + lead fusion -> fission with the ash being different >isotopes of the same elements, but the downfall of the attempted humor is that >the fission would result in a plethora of elements from the double hump >distribution NOT the same two that fused assuming they could fuse, which >they cant > > > >Its fairly clever > > > > > >From: Jed Rothwell > > > >M. R. Pahlavani and S. A. Alavi, Mod. Phys. Lett. A DOI: >10.1142/S0217732314502149 > > >Effects of level density parameter on the superheavy production in cold fusion > > >M. R. Pahlavani > >· Department of Nuclear Physics, University of Mazandaran, Babolsar >47415-416, Iran > >S. A. Alavi > >· Corresponding author > >· Department of Nuclear Physics, University of Mazandaran, Babolsar >47415-416, Iran > >Received: 10 July 2014 > >Revised: 29 October 2014 > >Accepted: 29 October 2014 > >Published: 18 December 2014 > >By using semiclassical method and considering WoodsSaxon and Coulomb >potentials, the level density parameter a was calculated for three superheavy >nuclei 270110, 278112 and 290116. Obtained results showed that the value of >level density parameter of these nuclei is near to the simple relation a?A/10. >In framework of the dinuclear system model, the effects of level density >parameter on the probability of the formation of a compound nucleus, the ratio >of neutron emission width and fission width, and evaporation residue >cross-section of three cold fusion reactions 62Ni+208Pb, 70Zn+208Pb and >82Se+208Pb, leading to superheavy elements were investigated. The findings >indicate that the level density parameter play a significant role in >calculations of heavy-ion fusionfission reactions. The obtained results in >the case of a = A/12 have larger values in comparison with calculated level >density parameter with WoodsSaxon potential (aWS) and a = A/10. The >theoretical results of the >evaporation residue cross-section are very sensitive to the choice of level >density parameter. The calculated values with aWS are in good agreement with >experimental values. > >Keywords: Semiclassical method; superheavy nuclei; WoodsSaxon potential; >level density > >PACS: 24.10.Pa, 25.70.Jj, 24.10.-i, 24.60.-k Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
