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Jungclaus, Johann H.,Bard, Edouard,Baroni, Mé,lanie,Braconnot, Pascale,Cao, Jian,Chini, Louise P.,Egorova, Tania,Evans, Michael,Gonzá,lez-Rouco, J. Fidel,Goosse, Hugues,Hurtt, George C.,Jo Copernicus GmbH 2017 Geoscientific model development Vol.10 No.11
<P><p><strong>Abstract.</strong> The pre-industrial millennium is among the periods selected by the Paleoclimate Model Intercomparison Project (PMIP) for experiments contributing to the sixth phase of the Coupled Model Intercomparison Project (CMIP6) and the fourth phase of the PMIP (PMIP4). The <i>past1000</i> transient simulations serve to investigate the response to (mainly) natural forcing under background conditions not too different from today, and to discriminate between forced and internally generated variability on interannual to centennial timescales. This paper describes the motivation and the experimental set-ups for the PMIP4-CMIP6 <i>past1000</i> simulations, and discusses the forcing agents orbital, solar, volcanic, and land use/land cover changes, and variations in greenhouse gas concentrations. The <i>past1000</i> simulations covering the pre-industrial millennium from 850 Common Era (CE) to 1849<span class='thinspace'></span>CE have to be complemented by <i>historical</i> simulations (1850 to 2014<span class='thinspace'></span>CE) following the CMIP6 protocol. The external forcings for the <i>past1000</i> experiments have been adapted to provide a seamless transition across these time periods. Protocols for the <i>past1000</i> simulations have been divided into three tiers. A default forcing data set has been defined for the Tier 1 (the CMIP6 <i>past1000</i>) experiment. However, the PMIP community has maintained the flexibility to conduct coordinated sensitivity experiments to explore uncertainty in forcing reconstructions as well as parameter uncertainty in dedicated Tier 2 simulations. Additional experiments (Tier 3) are defined to foster collaborative model experiments focusing on the early instrumental period and to extend the temporal range and the scope of the simulations. This paper outlines current and future research foci and common analyses for collaborative work between the PMIP and the observational communities (reconstructions, instrumental data).</p> </P>
Observation of a γ-decaying millisecond isomeric state in <sup>128</sup>Cd<sub>80</sub>
Jungclaus, A.,Grawe, H.,Nishimura, S.,Doornenbal, P.,Lorusso, G.,Simpson, G.S.,Soderstrom, P.A.,Sumikama, T.,Taprogge, J.,Xu, Z.Y.,Baba, H.,Browne, F.,Fukuda, N.,Gernhauser, R.,Gey, G.,Inabe, N.,Isobe North-Holland Pub. Co 2017 Physics letters. Section B Vol.772 No.-
A new high-spin isomer in the neutron-rich nucleus <SUP>128</SUP>Cd was populated in the projectile fission of a <SUP>238</SUP>U beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T<SUB>½</SUB>=6.3(8) ms was measured for the new state which was tentatively assigned a spin/parity of (15<SUP>-</SUP>). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus <SUP>129</SUP>Cd. In the present experiment no evidence was found for the decay of a 18<SUP>+</SUP>E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h<SUB>1½</SUB> and the 0g<SUB>9/2</SUB> orbit, respectively, which is predicted to exist by the shell model.
βdecay of semi-magicCd130: Revision and extension of the level scheme ofIn130
Jungclaus, A.,Grawe, H.,Nishimura, S.,Doornenbal, P.,Lorusso, G.,Simpson, G. S.,Sö,derströ,m, P.-A.,Sumikama, T.,Taprogge, J.,Xu, Z. Y.,Baba, H.,Browne, F.,Fukuda, N.,Gernhä,user, R.,Gey, American Physical Society 2016 Physical Review C Vol.94 No.2
<P>The beta decay of the semi-magic nucleus Cd-130 has been studied at the RIBF facility at the RIKEN Nishina Center. The high statistics of the present experiment allowed for a revision of the established level scheme of In-130 and the observation of additional beta feeding to high- lying core-excited states in In-130. The experimental results are compared to shell-model calculations employing a model space consisting of the full major N = 50-82 neutron and Z = 28-50 proton shells and the NA-14 interaction, and good agreement is found.</P>
Jungclaus, A.,Gargano, A.,Grawe, H.,Taprogge, J.,Nishimura, S.,Doornenbal, P.,Lorusso, G.,Shimizu, Y.,Simpson, G. S.,Sö,derströ,m, P.-A.,Sumikama, T.,Xu, Z. Y.,Baba, H.,Browne, F.,Fukuda, N.,G American Physical Society 2016 Physical Review C Vol.93 No.4
<P>For the first time, the gamma decay of excited states has been observed in a nucleus situated in the quadrant south-east of doubly magic Sn-132, a region in which experimental information so far is limited to ground-state properties. Six gamma rays with energies of 50, 86, 103, 227, 357, and 602 keV were observed following the beta-delayed neutron emission from Cd-133(85), populated in the projectile fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN within the EURICA project. The new experimental information is compared to the results of a modern realistic shell-model calculation, the first one in this region very far from stability, focusing in particular on the pi 0g(9/2)(-1) circle times nu 1f(7/2) particle-hole multiplet in In-132(83). In addition, theoretical estimates based on a scaling of the two-body matrix elements for the pi h(11/2)(-1) circle times nu g(9/2) analog multiplet in Tl-208(127), one major proton and one major neutron shell above, are presented.</P>
Taprogge, J.,Jungclaus, A.,Grawe, H.,Nishimura, S.,Xu, Z.Y.,Doornenbal, P.,Lorusso, G.,Ná,cher, E.,Simpson, G.S.,Sö,derströ,m, P.-A.,Sumikama, T.,Baba, H.,Browne, F.,Fukuda, N.,Gernh&aum North-Holland Pub. Co 2014 Physics letters. Section B Vol.738 No.-
<P><B>Abstract</B></P> <P>The decay of an isomeric state in the neutron-rich nucleus <SUP>129</SUP>Cd has been observed via the detection of internal conversion and Compton electrons providing first experimental information on excited states in this nucleus. The isomer was populated in the projectile fission of a <SUP>238</SUP>U beam at the Radioactive Isotope Beam Factory at RIKEN. From the measured yields of <I>γ</I>-rays and internal conversion electrons, a multipolarity of <I>E</I>3 was tentatively assigned to the isomeric transition. A half-life of <SUB> T 1 / 2 </SUB> = 3.6 ( 2 ) ms was determined for the new state which was assigned a spin of ( 21 / <SUP> 2 + </SUP> ) , based on a comparison to shell model calculations performed using state-of-the-art realistic effective interactions.</P>
Proton-hole and core-excited states in the semi-magic nucleus 131In82
Taprogge, J.,Jungclaus, A.,Grawe, H.,Borzov, I. N.,Nishimura, S.,Doornenbal, P.,Lorusso, G.,Simpson, G. S.,Sö,derströ,m, P. -A.,Sumikama, T.,Xu, Z. Y.,Baba, H.,Browne, F.,Fukuda, N.,Gernhä Springer-Verlag 2016 The european physical journal. A, Hadrons and nucl Vol.52 No.11
<P>The decay of the N = 83 nucleus Cd-131 has been studied at the RIBF facility at the RIKEN Nishina Center. The main purpose of the study was to identify the position of the and proton-hole states and the energies of core-excited configurations in the semi-magic nucleus In-131. From the radiation emitted following the decay, a level scheme of In-131 was established and the feeding to each excited state determined. Similarities between the single-particle transitions observed in the decays of the N = 83 isotones In-132 and Cd-131 are discussed. Finally the excitation energies of several core-excited configurations in In-131 are compared to QRPA and shell-model calculations.</P>
βdecay ofCd129and excited states inIn129
Taprogge, J.,Jungclaus, A.,Grawe, H.,Nishimura, S.,Doornenbal, P.,Lorusso, G.,Simpson, G. S.,Sö,derströ,m, P.-A.,Sumikama, T.,Xu, Z. Y.,Baba, H.,Browne, F.,Fukuda, N.,Gernhä,user, R.,Gey, American Physical Society 2015 PHYSICAL REVIEW C - Vol.91 No.5