A. Ertoprak
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View article: Fusion of 12C+28Si at deep sub-barrier energies
Fusion of 12C+28Si at deep sub-barrier energies Open
The existence of fusion hindrance is not well established in light heavy-ion systems. Studying slightly heavier cases allows extrapolating the trend to light systems of astrophysical interest. Fusion of 12C + 28Si has been measured down to…
View article: Triaxiality and confirmation of low-spin tilted precession in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Nd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>135</mml:mn></mml:mmultiscripts></mml:math>
Triaxiality and confirmation of low-spin tilted precession in Open
Excited states ranging from low to high spin in 135Nd have been investigated using the 100Mo(40Ar, 5n) heavy ion fusion evaporation reaction with the JUROGAM II γ -ray spectrometer. In the present work we report anew 17/2− 3 state and a ne…
View article: Study of Shape Coexistence in Sn Isotopes via Multinucleon Transfer Reactions
Study of Shape Coexistence in Sn Isotopes via Multinucleon Transfer Reactions Open
Multinucleon transfer reactions were employed in a series of experiments at Legnaro National Laboratories of INFN and at the Tandem Laboratory of the Horia Hulubei National Institute in Bucharest. The main aim was to investigate the shape …
View article: Probing Low-energy States in \(^{110}\)Cd Using Coulomb Excitation
Probing Low-energy States in \(^{110}\)Cd Using Coulomb Excitation Open
A campaign of Coulomb-excitation experiments to study the electromagnetic structure of \(^{110}\)Cd was performed using beams of \(^{14}\)N, \(^{32}\)S, and \(^{60}\)Ni. The use of various reaction partners enables disentangling the contri…
View article: Approaching 100Sn: Structural evolution in 98,100Cd via lifetime measurements
Approaching 100Sn: Structural evolution in 98,100Cd via lifetime measurements Open
View article: First Identification of Excited States in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Zr</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>78</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> and Implications for Isospin Nonconserving Forces in Nuclei
First Identification of Excited States in and Implications for Isospin Nonconserving Forces in Nuclei Open
At a fundamental level, the interactions between protons and protons, protons and neutrons, and neutrons and neutrons are not identical. Such isospin nonconserving interactions emerge when comparing the excitation energy of analog states i…
View article: Natural solution of the low-lying level structure of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">I</mml:mi><mml:mprescripts/><mml:none/><mml:mn>114</mml:mn></mml:mmultiscripts></mml:math> from complementary measurements and new interpretation of the high-spin bands
Natural solution of the low-lying level structure of from complementary measurements and new interpretation of the high-spin bands Open
The complex low-spin structure of the proton-rich 11453 I 61 nucleus has been investigated with the JUROGAM 3 germanium array coupled with the MARA mass separator using the 58 Ni ( 64Zn ,𝛼3pn) fusion-evaporation reaction. The depopulatio…
View article: Recent data on fusion far below the barrier for <sup>12</sup>C + <sup>28</sup>Si
Recent data on fusion far below the barrier for <sup>12</sup>C + <sup>28</sup>Si Open
Heavy-ion fusion reactions are essential to investigate the fundamental problem of quantum tunnelling of many-body systems in the presence of intrinsic degrees of freedom. Studying the fusion of light systems with Q > 0 and possibly identi…
View article: Lifetime measurement after direct transfer reactions with AGATA at LNL
Lifetime measurement after direct transfer reactions with AGATA at LNL Open
Lifetimes of nuclear excited states are important observables in nuclear structure studies, since they can directly be related to electromagnetic transition matrix elements. The determination of transition probabilities between nuclear sta…
View article: A novel technique for lifetime measurements in heavy neutron-rich nuclei: The reversed plunger
A novel technique for lifetime measurements in heavy neutron-rich nuclei: The reversed plunger Open
A novel technique, the so-called ‘reversed plunger’, was used for the first time to measure lifetimes of nuclear excited states on the order of picoseconds in heavy neutron-rich nuclei at the Legnaro National Laboratories. Preliminary spec…
View article: Collectivity and shapes in light cesium nuclei: Band structures in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cs</mml:mi><mml:mprescripts/><mml:none/><mml:mn>117</mml:mn></mml:mmultiscripts></mml:math>
Collectivity and shapes in light cesium nuclei: Band structures in Open
International audience
View article: Collectivity at the prolate-oblate transition: The <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:msubsup><mml:mrow><mml:mn>2</mml:mn></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mo linebreak="badbreak" linebreakstyle="after">+</mml:mo></mml:mrow></mml:msubsup></mml:math> lifetime of 190W
Collectivity at the prolate-oblate transition: The lifetime of 190W Open
View article: First observation of excited states in 120La and its impact on the shape evolution in the A ≈ 120 mass region
First observation of excited states in 120La and its impact on the shape evolution in the A ≈ 120 mass region Open
International audience
View article: High-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>K</mml:mi></mml:math> three-quasiparticle isomers in the proton-rich nucleus <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Nd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>129</mml:mn></mml:mmultiscripts></mml:math>
High- three-quasiparticle isomers in the proton-rich nucleus Open
International audience
View article: Decay spectroscopy of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Os</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>171</mml:mn><mml:mo>,</mml:mo><mml:mn>172</mml:mn></mml:mrow></mml:mmultiscripts></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ir</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>171</mml:mn><mml:mo>,</mml:mo><mml:mn>172</mml:mn><mml:mo>,</mml:mo><mml:mn>174</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>
Decay spectroscopy of and Open
We report on a study of the α-decay fine structure and the associated Eα-Eγ correlations in the decays of Os171,172 and Ir171,172,174. In total, 13 new α-decay energy lines have been resolved, and three new γ-ray transitions have been obse…
View article: Conceptual design of the AGATA 2<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e396" altimg="si24.svg"><mml:mi>π</mml:mi></mml:math> array at LNL
Conceptual design of the AGATA 2 array at LNL Open
View article: Isomeric Lifetime Measurement in the Neutron-rich <sup>189</sup>Ta
Isomeric Lifetime Measurement in the Neutron-rich <sup>189</sup>Ta Open
Isomeric states of the neutron-rich isotope 189 73 Ta 116 were populated via fragmentation of a primary beam of 208 Pb ions at 1 GeV/u impinging on a 9 Be target at GSI, Darmstadt, Germany. The isotopes of interest were separated, identifi…
View article: Observation of the proton emitter $${}_{\,57}^{116}$$La59
Observation of the proton emitter $${}_{\,57}^{116}$$La59 Open
View article: Evidence for spherical-oblate shape coexistence in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Tc</mml:mi><mml:mprescripts/><mml:none/><mml:mn>87</mml:mn></mml:mmultiscripts></mml:math>
Evidence for spherical-oblate shape coexistence in Open
Excited states in the neutron-deficient nucleus $^{87}$Tc have been studied via the fusion-evaporation reaction $^{54}$Fe($^{36}$Ar, 2$n$1p) $^{87}$Tc at 115 MeV beam energy. The AGATA γ -ray spectrometer coupled to the DIAMANT, NEDA, and …
View article: Refined description of the positive-parity bands and the extent of octupole correlations in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ba</mml:mi><mml:mprescripts/><mml:none/><mml:mn>120</mml:mn></mml:mmultiscripts></mml:math>
Refined description of the positive-parity bands and the extent of octupole correlations in Open
Three new negative-parity bands have been identified in 120Ba, two of them forming a strongly coupled band. The previously known negative-parity band is significantly extended to high spin, while the lower part of the yrare positive-parity…
View article: The DESPEC setup for GSI and FAIR
The DESPEC setup for GSI and FAIR Open
View article: First observation of the proton emitter 116La: Evidence for strong neutron-proton pairing from proton separation energies and emission probabilities
First observation of the proton emitter 116La: Evidence for strong neutron-proton pairing from proton separation energies and emission probabilities Open
The discovery of the new proton emitter $^{116}_{~57}$La$_{59}$, 23 neutrons away from the only stable La isotope, $^{139}_{~57}$La$_{82}$, is reported. The $^{116}$La nuclei were synthesised in the fusion-evaporation reaction $^{58}$Ni($^…
View article: Experimental evidence for transverse wobbling bands in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Nd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>136</mml:mn></mml:mmultiscripts></mml:math>
Experimental evidence for transverse wobbling bands in Open
International audience
View article: Candidate revolving chiral doublet bands in $${}^{119}$$Cs
Candidate revolving chiral doublet bands in $${}^{119}$$Cs Open
View article: Evidence against the wobbling nature of low-spin bands in 135Pr
Evidence against the wobbling nature of low-spin bands in 135Pr Open
View article: Identification of excited states in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Te</mml:mi><mml:mn>55</mml:mn><mml:none/><mml:mprescripts/><mml:mn>52</mml:mn><mml:mn>107</mml:mn></mml:mmultiscripts></mml:math>
Identification of excited states in Open
Excited states in the extremely neutron-deficient nucleus 107Te have been identified from two separate experiments using the recoil-decay tagging technique. Two connected structures were observed on the basis of γγ-coincidence relations an…
View article: Rich band structure and multiple long-lived isomers in the odd-odd <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cs</mml:mi><mml:mprescripts/><mml:none/><mml:mn>118</mml:mn></mml:mmultiscripts></mml:math> nucleus
Rich band structure and multiple long-lived isomers in the odd-odd nucleus Open
One of the largest sets of collective excitations built on two-quasiparticle configurations in odd-odd nuclei of the proton-rich A≈120 mass region is reported in 118Cs. Several new rotational bands and long-lived isomers have been identifi…
View article: Complete set of proton excitations in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cs</mml:mi><mml:mprescripts/><mml:none/><mml:mn>119</mml:mn></mml:mmultiscripts></mml:math>
Complete set of proton excitations in Open
The very neutron-deficient strongly deformed 119Cs nucleus has been studied using the 58Ni(64Zn,3p) reaction and the JUROGAM 3 γ-ray detector array coupled to the MARA recoil-mass separator setup. The excitation energies of all observed ba…
View article: Evidence of oblate-prolate shape coexistence in the strongly-deformed nucleus 119Cs
Evidence of oblate-prolate shape coexistence in the strongly-deformed nucleus 119Cs Open
Prolate-oblate shape coexistence close to the ground state in the strongly-deformed proton-rich A≈120 nuclei is reported for the first time. One of the four reported bands in 119Cs, built on a 11/2− state at 670 keV, consists of nearly deg…
View article: Evidence for enhanced neutron-proton correlations from the level structure of the $N=Z+1$ nucleus $^{87}_{43}$Tc$^{\ }_{44}$
Evidence for enhanced neutron-proton correlations from the level structure of the $N=Z+1$ nucleus $^{87}_{43}$Tc$^{\ }_{44}$ Open
The low-lying excited states in the neutron-deficient $N=Z+1$ nucleus $^{87}_{43}$Tc$^{\ }_{44}$ have been studied via the fusion-evaporation reaction $^{54}$Fe($^{36}$Ar, $2n1p$)$^{87}$Tc at the Grand Accélérateur National d'Ions Lourds (…