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Bronis, A.*; Heberger, F. P.*; Antalic, S.*; Andel, B.*; Ackermann, D.*; Heinz, S.*; Hofmann, S.*; Khuyagbaatar, J.*; Kindler, B.*; Kojouharov, I.*; et al.
Physical Review C, 106(1), p.014602_1 - 014602_12, 2022/07
Times Cited Count:6 Percentile:69.74(Physics, Nuclear)Devaraja, H. M.*; Heinz, S.*; Beliuskina, O.*; Hofmann, S.*; Hornung, C.*; Mnzenberg, G.*; Ackermann, D.*; Gupta, M.*; Gambhir, Y. K.*; Henderson, R. A.*; et al.
European Physical Journal A, 55(2), p.25_1 - 25_9, 2019/02
Times Cited Count:15 Percentile:74.37(Physics, Nuclear)Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; Mnzenberg, G.*; Antalic, S.*; Barth, W.*; Burkhard, K. G.*; Dahl, L.*; Eberhardt, K.*; et al.
European Physical Journal A, 52(6), p.180_1 - 180_34, 2016/06
Times Cited Count:198 Percentile:93.94(Physics, Nuclear)Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; Mnzenberg, G.*; Antalic, S.*; Barth, W.*; Dahl, L.*; Eberhardt, K.*; Grzywacz, R.*; et al.
European Physical Journal A, 52(4), p.116_1 - 116_12, 2016/04
Times Cited Count:31 Percentile:87.26(Physics, Nuclear)Devaraja, H. M.*; Heinz, S.*; Beliuskina, O.*; Comas, V. F.*; Hofmann, S.*; Hornung, C.*; Mnzenberg, G.*; Nishio, Katsuhisa; Ackermann, D.*; Gambhir, Y. K.*; et al.
Physics Letters B, 748, p.199 - 203, 2015/09
Times Cited Count:72 Percentile:96.74(Astronomy & Astrophysics)Nishio, Katsuhisa; Ikezoe, Hiroshi; Hofmann, S.*; Ackermann, D.*; Aritomo, Yoshihiro*; Comas, V. F.*; Dllmann, Ch. E.*; Heinz, S.*; Heredia, J. A.*; He
berger, F. P.*; et al.
AIP Conference Proceedings 1524, p.68 - 72, 2013/04
Times Cited Count:0 Percentile:0.00(Physics, Nuclear)Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; Khuyagbaatar, J.*; Ackermann, D.*; Antalic, S.*; Barth, B.*; Block, M.*; Burkhard, H. G.*; et al.
European Physical Journal A, 48(5), p.62_1 - 62_23, 2012/05
Times Cited Count:176 Percentile:98.81(Physics, Nuclear)Nishio, Katsuhisa; Ikezoe, Hiroshi; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Aritomo, Yoshihiro; Comas, V. F.*; Dllmann, Ch. E.*; Gorshkov, A.*; Graeger, R.*; et al.
EPJ Web of Conferences, 17, p.09005_1 - 09005_4, 2011/10
Times Cited Count:2 Percentile:63.74(Physics, Nuclear)Nishio, Katsuhisa; Hofmann, S.*; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Aritomo, Yoshihiro; Comas, V. F.*; D
llmann, Ch. E.*; Gorshkov, A.*; Graeger, R.*; et al.
Physical Review C, 82(2), p.024611_1 - 024611_9, 2010/08
Times Cited Count:83 Percentile:95.97(Physics, Nuclear)Heberger, F. P.*; Antalic, S.*; Sulignano, B.*; Ackermann, D.*; Heinz, S.*; Hofmann, S.*; Kindler, B.*; Khuyagbaatar, J.*; Kojouharov, I.*; Kuusiniemi, P.*; et al.
European Physical Journal A, 43(1), p.55 - 66, 2010/01
Times Cited Count:76 Percentile:95.35(Physics, Nuclear)Nishio, Katsuhisa; Hofmann, S.*; Ikezoe, Hiroshi; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; et al.
Nuclear Physics A, 805(1-4), p.516 - 518, 2008/06
Dvorak, J.*; Brchle, W.*; Chelnokov, M.*; D
llmann, Ch. E.*; Dvorakova, Z.*; Eberhardt, K.*; J
ger, E.*; Kr
cken, R.*; Kuznetsov, A.*; Nagame, Yuichiro; et al.
Physical Review Letters, 100(13), p.132503_1 - 132503_4, 2008/04
Times Cited Count:130 Percentile:94.93(Physics, Multidisciplinary)Dvorak, J.*; Brchle, W.*; Chelnokov, M.*; D
llmann, Ch. E.*; Dvorakova, Z.*; Eberhardt, K.*; J
ger, E.*; Kr
cken, R.*; Kuznetsov, A.*; Nagame, Yuichiro; et al.
Physical Review Letters, 100(13), p.132503_1 - 132503_4, 2008/04
The analysis of a large body of heavy ion fusion reaction data with medium-heavy projectiles (6Z
18) and actinide targets suggests a disappearance of the 3
exit channel with increasing atomic number of the projectile. Here, we report a measurement of the excitation function of the reaction
Cm(
Mg,
)
Hs and the observation of the new nuclide
Hs produced in the 3
evaporation channel at a beam energy well below the Bass fusion barrier with a cross section comparable to the maxima of the 4
and 5
channels. This indicates the possible discovery of new neutron-rich transactinide nuclei using relatively light heavy ion beams of the most neutron-rich stable isotopes and actinide targets.
Nishio, Katsuhisa; Hofmann, S.*; Ikezoe, Hiroshi; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; et al.
Journal of Nuclear and Radiochemical Sciences, 8(2), p.73 - 78, 2007/10
Sulignano, B.*; Heinz, S.*; Heberger, F. P.*; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Kindler, B.*; Kojouharov, I.*; Kuusiniemi, P.*; Lommel, B.*; et al.
European Physical Journal A, 33(4), p.327 - 331, 2007/09
Times Cited Count:83 Percentile:96.28(Physics, Nuclear)Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Burkhard, H. G.*; Comas, V. F.*; Dressler, R.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; Heberger, F. P.*; et al.
European Physical Journal A, 32(3), p.251 - 260, 2007/06
Times Cited Count:269 Percentile:99.67(Physics, Nuclear)Nishio, Katsuhisa; Hofmann, S.*; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; Ikezoe, Hiroshi; et al.
AIP Conference Proceedings 891, p.71 - 79, 2007/03
Seaborgium isotopes were produced in the fusion reaction Si +
U as evaporation residues (ERs), and the cross sections were determined. The experiment was carried out at GSI in Darmstadt, Germany. At the center-of-mass energy of E
= 144 MeV, three
decay chains starting from
Sg were observed, and the corresponding ER cross section was determined to be 67 pb. At the sub-barrier energy of E
= 133 MeV, three spontaneous fission events of a new isotope
Sg were detected. The cross section was 10 pb. The half-life of
Sg was determined to be 120 ms. The ER cross sections were compared with a statistical model calculation. In the fusion process, the coupled channel calculation taking into account the prolate deformation of
U was adopted to determine the capture cross section. The calculated capture cross section agrees well with the fission cross section of
Si +
U obtained at the JAEA tandem accelerator. The measured cross section of
Sg at the sub-barrier energy is factor 10
larger than the calculation based on the one-dimensional model in the fusion process, showing the fusion enhancement caused by the deformation of
U. However, disagreement with the calculation suggests the presence of quasi-fission channel. At the above barrier energy of E
= 144 MeV, the measured cross section is well reproduced by the calculation. This means that the interaction of
Si at the equotorial side of
U has advantage on the fusion process.
Heberger, F. P.*; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Kindler, B.*; Kojouharov, I.*; Kuusiniemi, P.*; Leino, M.*; Lommel, B.*; Mann, R.*; et al.
European Physical Journal A, 30(3), p.561 - 569, 2006/12
Times Cited Count:53 Percentile:91.46(Physics, Nuclear)Decay properties of Rf,
No and
Fm were investigated by measuring the
and
decays. The experiment was carried out by using the linear accelerator UNILAC and velocity filter SHIP at GSI. The evaporation residues were separated by the SHIP and implanted into a silicon detector located at the focal plane. The
decays were detected by the silicon detector itself and the
rays were detected by Ge detectors. These isotopes were produced by the reaction
Pb(
Ti, 2n)
Rf and the
decay daughters from
Rf, or by the reaction
Pb(
Ca, 3n)
No and the
decay daughter of
No. It was found that (1) the 1.0 s isomeric state in
No is located in the level of 106 keV. (2) The new isomeric state with 2
s was found in
No, which was directly populated in the reaction
Pb(
Ca,3n)
No. The state is located at the level larger than 1700 keV and decays by accompanying two
rays. These two
-ray energies agreed with the lines which was followed by the
decay of
Rf.
Dvorak, J.*; Brchle, W.*; Chelnokov, M.*; Dressler, R.*; D
llmann, Ch. E.*; Eberhardt, K.*; Gorshkov, V.*; J
ger, E.*; Kr
cken, R.*; Kuznetsov, A.*; et al.
Physical Review Letters, 97(24), p.242501_1 - 242501_4, 2006/12
Times Cited Count:161 Percentile:96.05(Physics, Multidisciplinary)no abstracts in English
Nishio, Katsuhisa; Hofmann, S.*; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; Ikezoe, Hiroshi; et al.
European Physical Journal A, 29(3), p.281 - 287, 2006/09
Times Cited Count:66 Percentile:93.95(Physics, Nuclear)Seaborgium isotopes were produced in the fusion reaction Si +
U as evaporation residues (ERs), and the cross sections were determined. The experiment was carried out at GSI in Darmstadt, Germany. At the center-of-mass energy of E
= 144 MeV, three
decay chains starting from
Sg were observed, and the corresponding ER cross section was determined to be 67 pb. At the sub-barrier energy of E
= 133 MeV, three spontaneous fission events of a new isotope
Sg were detected. The cross section was 10 pb. The half-life of
Sg was determined to be 120 ms. The ER cross sections were compared with a statistical model calculation. In the fusion process, the coupled channel calculation taking into account the prolate deformation of
U was adopted to determine the capture cross section. The calculaed capture cross section agrees well with the fission cross section of
Si +
U obtained at the JAEA tandem accelerator. The measured cross section of
Sg at the sub-barrier energy is factor 10
larger than the calculation based on the one-dimensional model in the fusion process, showing the fusion enhancement caused by the deformation of
U. However, disagreement with the calculation suggests the presence of quasi-fission channel. At the above barrier energy of E
= 144 MeV, the measured cross section is well reproduced by the calculation. This means that the interaction of
Si at the equatorial side of
U has advantage on the fusion process.