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Journal Articles

Neutron-hole states in $$^{131}$$Sn and spin-orbit splitting in neutron-rich nuclei

Orlandi, R.; Pain, S. D.*; Ahn, S.*; Jungclaus, A.*; Schmitt, K. T.*; Bardayan, D. W.*; Catford, W. N.*; Chapman, R.*; Chipps, K. A.*; Cizewski, J. A.*; et al.

Physics Letters B, 785, p.615 - 620, 2018/10

 Times Cited Count:1 Percentile:49.68(Astronomy & Astrophysics)

Journal Articles

EXILL; A High-efficiency, high-resolution setup for $$gamma$$-spectroscopy at an intense cold neutron beam facility

Jentschel, M.*; Blanc, A.*; de France, G.*; K$"o$ster, U.*; Leoni, S.*; Mutti, P.*; Simpson, G.*; Soldner, T.*; Ur, C.*; Urban, W.*; et al.

Journal of Instrumentation (Internet), 12(11), p.P11003_1 - P11003_33, 2017/11

 Times Cited Count:8 Percentile:17(Instruments & Instrumentation)

Journal Articles

$$beta$$-delayed fission of $$^{230}$$Am

Wilson, G. L.*; Takeyama, Mirei*; Andreyev, A.; Andel, B.*; Antalic, S.*; Catford, W. N.*; Ghys, L.*; Haba, Hiromitsu*; He${ss}$berger, F. P.*; Huang, M.*; et al.

Physical Review C, 96(4), p.044315_1 - 044315_7, 2017/10

 Times Cited Count:1 Percentile:72.32(Physics, Nuclear)

Journal Articles

Ground-state configuration of neutron-rich $$^{35}$$Al via Coulomb breakup

Chakraborty, S.*; Datta, U.*; Aumann, T.*; Beceiro-Novo, S.*; Boretzky, K.*; Caesar, C.*; Carlson, B. V.*; Catford, W. N.*; Chartier, M.*; Cortina-Gil, D.*; et al.

Physical Review C, 96(3), p.034301_1 - 034301_9, 2017/09

 Percentile:100(Physics, Nuclear)

no abstracts in English

Journal Articles

Isomeric states observed in heavy neutron-rich nuclei populated in the fragmentation of a $$^{208}$$Pb beam

Steer, S. J.*; Podoly$'a$k, Z.*; Pietri, S.*; G$'o$rska, M.*; Grawe, H.*; Maier, K.*; Regan, P. H.*; Rudolph, D.*; Garnsworthy, A. B.*; Hoischen, R.*; et al.

Physical Review C, 84(4), p.044313_1 - 044313_22, 2011/10

 Times Cited Count:41 Percentile:6.82(Physics, Nuclear)

Heavy neutron-rich nuclei were populated via the fragmentation of a E/A=1 GeV $$_{82}^{208}$$Pb beam. Secondary fragments were separated and identified and subsequently implanted in a passive stopper. By the detection of delayed $$gamma$$ rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority of them observed for the first time. Possible level schemes are constructed and the structure of the nuclei discussed. To aid the interpretation, shell-model as well as BCS calculations were performed.

Journal Articles

Weakly deformed oblate structures in $$^{198}_{76}$$Os$$_{122}$$

Podoly$'a$k, Zs.*; Steer, S. J.*; Pietri, S.*; Xu, F. R.*; Liu, H. J.*; Regan, P. H.*; Rudolph, D.*; Garnsworthy, A. B.*; Hoischen, R.*; G$'o$rska, M.*; et al.

Physical Review C, 79(3), p.031305_1 - 031305_4, 2009/03

 Times Cited Count:25 Percentile:15.29(Physics, Nuclear)

$$gamma$$ rays de-exciting isomeric states in the neutron-rich nucleus $$_{76}^{198}$$Os$$_{122}$$ have been observed following relativistic projectile fragmentation of a 1 GeV per nucleon $$^{208}$$Pb beam. The ground-state band has properties compatible with oblate deformation. The evolution of the structure of Os isotopes characterized by sudden prolate-oblate shape change is discussed and contrasted with the smooth change known in the Pt chain.

Journal Articles

Neutron-proton pairing competition in $$N=Z$$ nuclei; Metastable state decays in the proton dripline nuclei $$^{82}_{41}$$Nb and $$^{86}_{43}$$Tc

Garnsworthy, A. B.*; Regan, P. H.*; C$'a$ceres, L.*; Pietri, S.*; Sun, Y.*; Rudolph, D.*; G$'o$rska, M.*; Podoly$'a$k, Z.*; Steer, S. J.*; Hoischen, R.*; et al.

Physics Letters B, 660(4), p.326 - 330, 2008/02

 Times Cited Count:22 Percentile:19.12(Astronomy & Astrophysics)

The low-lying structures of the self-conjugate ($$N=Z$$) nuclei $$^{82}_{41}$$Nb and $$^{86}_{43}$$Tc have been investigated using isomeric-decay spectroscopy following the projectile fragmentation of a $$^{107}$$Ag beam. These represent the heaviest odd-odd $$N=Z$$ nuclei in which internal decays have been identified to date. The resulting level schemes shed light on the shape evolution along the $$N=Z$$ line between the doubly-magic systems $$^{56}_{28}$$Ni and $$^{100}_{50}$$Sn and support a preference for $$T=1$$ states in $$T_z=0$$ odd-odd nuclei at low excitation energies associated with a $$T=1$$ neutron-proton pairing gap. Comparison with Projected Shell Model calculations suggests that the decay in $$^{82}$$Nb may be interpreted as an isospin-changing $$K$$ isomer.

Journal Articles

Recent results in fragmentation isomer spectroscopy with rising

Pietri, S.*; Regan, P. H.*; Podoly$'a$k, Zs.*; Rudolph, D.*; Steer, S. J.*; Garnsworthy, A. B.*; Werner-Malento, E.*; Hoischen, R.*; G$'o$rska, M.*; Gerl, J.*; et al.

Nuclear Instruments and Methods in Physics Research B, 261(1-2), p.1079 - 1083, 2007/08

 Times Cited Count:83 Percentile:1.01(Instruments & Instrumentation)

The first results from the stopped beam RISING experimental campaign performed at the GSI laboratory in Darmstadt, Germany, are presented. RISING constitutes a major new experimental program in European nuclear structure physics research aimed at using relativistic energy (typically around 1 GeV per nucleon) projectile fragmentation reactions to populate nuclei with highly exotic proton-to-neutron ratios compared to the line of beta stability. In its high-efficiency stopped beam configuration, the RISING $$gamma$$-ray spectrometer consists of 105 individual germanium crystals which view a focal plane in which the exotic nuclei are brought to rest. Here, decays from metastable states with half-lives in the nano to milliseconds range can be observed. Results of initial commissioning experiments are also shown and details of the planned future experimental program are given.

Oral presentation

Neutron hole states in $$^{131}$$Sn studied via the $$^{132}$$Sn(d,t)$$^{131}$$Sn reaction

Orlandi, R.; Pain, S. D.*; Bardayan, D. W.*; Gross, C. J.*; Smith, M. S.*; Jungclaus, A.*; Ahn, S.*; Jones, K. L.*; Pittman, S. T.*; Schmitt, K. T.*; et al.

no journal, , 

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