<p>The evaporation residual cross sections (ERCSs) of these reactions were calculated by using <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(^{144}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>144</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Sm, <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(^{160,164}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mrow> <mn>160</mn> <mo>,</mo> <mn>164</mn> </mrow> </mmultiscripts> </math></EquationSource> </InlineEquation>Dy, <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(^{165}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>165</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Ho, <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(^{166}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>166</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Er, <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(^{169}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>169</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Tm, <InlineEquation ID="IEq8"> <EquationSource Format="TEX">\(^{171,174}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mrow> <mn>171</mn> <mo>,</mo> <mn>174</mn> </mrow> </mmultiscripts> </math></EquationSource> </InlineEquation>Yb, <InlineEquation ID="IEq9"> <EquationSource Format="TEX">\(^{175}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>175</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Lu, <InlineEquation ID="IEq10"> <EquationSource Format="TEX">\(^{176-180}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mrow> <mn>176</mn> <mo>-</mo> <mn>180</mn> </mrow> </mmultiscripts> </math></EquationSource> </InlineEquation>Hf, <InlineEquation ID="IEq11"> <EquationSource Format="TEX">\(^{181}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>181</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Ta, <InlineEquation ID="IEq12"> <EquationSource Format="TEX">\(^{180,182}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mrow> <mn>180</mn> <mo>,</mo> <mn>182</mn> </mrow> </mmultiscripts> </math></EquationSource> </InlineEquation>W and <InlineEquation ID="IEq13"> <EquationSource Format="TEX">\(^{187}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>187</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Re targets with <InlineEquation ID="IEq14"> <EquationSource Format="TEX">\(^{40}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>40</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Ar projectiles in the theoretical framework of the dinuclear system (DNS) model. The de-excitation process of the compound nucleus was theoretically calculated using two different statistical models, namely the statistical model 1 and statistical model 2 (GEMINI++ model). The calculated ERCSs were also compared with the experimental data. The ERCSs of synthesizing new proton-rich nuclides were investigated based on the fusion evaporation reaction. Predictions were made for the ERCSs of new isotopes of Pu, Cm and Bk in the heavy nuclei region, while the new isotopes of Ds, Cn and Fl are predicted in the superheavy nuclei region of <InlineEquation ID="IEq15"> <EquationSource Format="TEX">\(Z \ge 104\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>Z</mi> <mo>≥</mo> <mn>104</mn> </mrow> </math></EquationSource> </InlineEquation>.</p>

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Production of proton-rich isotopes of Pu, Cm, Bk, Ds, Cn, Fl by fusion evaporation reactions with \(^{40}\)Ar projectile

  • Qing-Qing Yao,
  • Tian-Liang Zhao,
  • Xiao-Jun Bao

摘要

The evaporation residual cross sections (ERCSs) of these reactions were calculated by using \(^{144}\) 144 Sm, \(^{160,164}\) 160 , 164 Dy, \(^{165}\) 165 Ho, \(^{166}\) 166 Er, \(^{169}\) 169 Tm, \(^{171,174}\) 171 , 174 Yb, \(^{175}\) 175 Lu, \(^{176-180}\) 176 - 180 Hf, \(^{181}\) 181 Ta, \(^{180,182}\) 180 , 182 W and \(^{187}\) 187 Re targets with \(^{40}\) 40 Ar projectiles in the theoretical framework of the dinuclear system (DNS) model. The de-excitation process of the compound nucleus was theoretically calculated using two different statistical models, namely the statistical model 1 and statistical model 2 (GEMINI++ model). The calculated ERCSs were also compared with the experimental data. The ERCSs of synthesizing new proton-rich nuclides were investigated based on the fusion evaporation reaction. Predictions were made for the ERCSs of new isotopes of Pu, Cm and Bk in the heavy nuclei region, while the new isotopes of Ds, Cn and Fl are predicted in the superheavy nuclei region of \(Z \ge 104\) Z 104 .