42 Result(s)

Article

Reply to: Possible overestimation of isomer depletion due to contamination

C. J. Chiara, J. J. Carroll, M. P. Carpenter, J. P. Greene, D. J. Hartley… in Nature (2021)

Article

Excitation and \( \gamma\)-decay coincidence measurements at the GRAF beamline for studies of pygmy and giant dipole resonances

Physical studies of electric dipole excitations in atomic nuclei e.g. the structure of pygmy dipole resonances and isovector giant dipole resonances are attracting much attention recently. In this article, we des...

N. Kobayashi, K. Miki, T. Hashimoto, C. Iwamoto… in The European Physical Journal A (2019)

Article

Isomer depletion as experimental evidence of nuclear excitation by electron capture

Experimental evidence is presented for isomer depletion through nuclear excitation by electron capture in molybdenum-93 nuclei.

C. J. Chiara, J. J. Carroll, M. P. Carpenter, J. P. Greene, D. J. Hartley… in Nature (2018)

Article

Identification of \(\mathrm{\ensuremath J^{\pi} = 19/2^+}\) and \(\mathrm{\ensuremath 23/2^+}\) isomeric states in ¹²⁷Sb

The nucleus \(\ensuremath {\rm ^{127}Sb}\) , which is on the neutron-rich periphery of the

H. Watanabe, G. J. Lane, G. D. Dracoulis, A. P. Byrne… in The European Physical Journal A (2009)

Article

Extensive γ -ray spectroscopy of normally and superdeformed structures in ⁶¹ ₂₉Cu₃₂

A largely extended experimental knowledge of the ⁶¹ ₂₉Cu₃₂ nucleus has been obtained from three experiments. Excited states in ⁶¹Cu were produced via the fusion-evaporation reaction ²⁸Si(³⁶Ar, 3p)

L. -L. Andersson, D. Rudolph, E. K. Johansson… in The European Physical Journal A (2008)

Article

Transition to non-collective states at high spin in ¹²⁴Xe

Excited states in ¹²⁴Xe were populated in the reaction ⁸²Se(⁴⁸Ca, 6n)¹²⁴Xe and γ -ray coincidence relationships were measured with the Gammasphere spectrometer. Two new bands are observed and several of the previ...

A. Al-Khatib, H. Hübel, P. Bringel, C. Engelhardt… in The European Physical Journal A (2008)

Article

Beta-delayed γ-ray studies of πf_7/2 - νpf shell nuclei

We have utilized the selective process of β decay to populate low-energy excited states in the neutron-rich ₂₂Ti, ₂₃V, ₂₄Cr, and ₂₅Mn nuclei. The goal was to systematically track the monopole shift of the νf_5/...

S. N. Liddick, P. F. Mantica… in The European Physical Journal Special Topi… (2007)

Article

Coulomb excitation of the ^242m Am isomer

The ^242m Am isomer, a well-known candidate for photodepopulation research, has been studied in this first ever Coulomb excitation of a nearly pure (≈98%) isomer target. Thirty new states, includin...

A. B. Hayes, D. Cline, K. J. Moody, C. Y. Wu, J. A. Becker… in Laser Physics (2007)

Article

Gamma-ray spectroscopy of the doubly magic nucleus ⁵⁶Ni

The doubly magic N = Z nucleus ⁵⁶Ni has been investigated with two fusion-evaporation reactions; ⁴⁰Ca(²⁸Si, 3α)⁵⁶Ni at a beam energy of 122MeV and ²⁸Si(³²S, 2p2n)⁵⁶Ni at 130MeV. To detect γ-rays in coincidence wi...

E. K. Johansson, D. Rudolph, J. Ekman… in The European Physical Journal A - Hadrons … (2006)

Article

Particle-core coupling in the transitional proton emitters ^{145, 146, 147}Tm

Excited states in 3 transitional proton emitters ^{145, 146, 147}Tm were studied using the Gammasphere Ge array coupled with the Argonne Fragment Mass Analyzer. The ¹⁴⁷Tm level scheme was extended and the unfavored ...

D. Seweryniak, C. N. Davids, A. Robinson… in The European Physical Journal A - Hadrons … (2005)

Article

Recoil decay tagging study of ¹⁴⁶Tm

Gamma-rays from the odd-odd transitional proton-emitting nucleus ¹⁴⁶Tm have been observed using the recoil-decay tagging technique. A rotational band similar to the h_11/2 decoupled band in ¹⁴⁷Tm has been observed...

A. P. Robinson, C. N. Davids, D. Seweryniak… in The European Physical Journal A - Hadrons … (2005)

Chapter and Conference Paper

Recoil decay tagging study of ¹⁴⁶Tm

Gamma-rays from the odd-odd transitional proton-emitting nucleus ¹⁴⁶Tm have been observed using the recoil-decay tagging technique. A rotational band similar to the h _11/2 decoupled band i...

A. P. Robinson, C. N. Davids, D. Seweryniak… in The 4th International Conference on Exotic… (2005)

Chapter and Conference Paper

Particle-core coupling in the transitional proton emitters ^145,146,147Tm

Excited states in 3 transitional proton emitters ^145,146,147Tm were studied using the Gammasphere Ge array coupled with the Argonne Fragment Mass Analyzer. The ¹⁴⁷Tm level scheme was extended and the unfavored si...

D. Seweryniak, C. N. Davids, A. Robinson… in The 4th International Conference on Exotic… (2005)

Article

K-Mixing and fast decay of a seven-quasiparticle isomer in ¹⁷⁹Ta

A seven-quasiparticle isomer with \(K^{\pi} = (49 /2^ + )\) and T _1/2 = 53 ( ^{+ 3} _-7) ns...

F. G. Kondev, G. D. Dracoulis, G. J. Lane… in The European Physical Journal A - Hadrons … (2004)

Article

High-spin structure of \(N\simeq Z\) nuclei around the A = 72 region

High-spin states have been studied in ⁷²Kr and ⁷²Br using the ⁴⁰ Ca + ⁴⁰ Ca and ³⁶ Ar + ⁴⁰ Ca reactions at 164 and 1...

N. S. Kelsall, C. E. Svensson, S. Fischer… in The European Physical Journal A - Hadrons … (2003)

Article

The \(\pi h_{11/2}^{-1}\nu i_{13/2}^{-2}\) three-hole isomeric state and octupole core excitation in the ²⁰⁵ Tl nucleus

New high-spin states were identified in the ²⁰⁵Tl isotope produced in deep-inelastic heavy-ion reactions. The expected 29/2 ⁺ yrast state and 35/2^- isomeric state with 235 ns half-life were located above the 2.6...

J. Wrzesiński, R. Broda, B. Fornal… in The European Physical Journal A - Hadrons … (2003)

Article

Gamma-ray feeding and decay of superdeformed states

We report on four recent results concerning the population and the decay of superdeformed states, namely the structure of excited superdeformed states in ¹⁹⁴Hg, the search for fine structure of the last superdefo...

A. Lopez-Martens, T. Døssing, T. L. Khoo… in The European Physical Journal A - Hadrons … (2003)

Chapter and Conference Paper

Rotational bands in the proton emitters ¹³¹Eu and ¹⁴¹Ho

Proton-decay studies led in recent years to the observation of about 20 new proton emitters. Among others, first two cases of highly deformed proton emitters, namely ¹³¹Eu and ¹⁴¹Ho, were reported [1]. Also, the ...

D. Seweryniak, P. J. Woods, J. J. Ressler, C. N. Davids… in Exotic Nuclei and Atomic Masses (2003)