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13 pags., 8 figs., 1 tab., We measured 135 cross sections of residual nuclei produced in fragmentation reactions of C12, N14, and O13−16,20,22 projectiles impinging on a carbon target at kinetic energies of near 400A MeV, most of them for the first time, with the RB3/LAND setup at the GSI facility in Darmstadt (Germany). The use of this state-of-the-art experimental setup in combination with the inverse kinematics technique gave the full identification in atomic and mass numbers of fragmentation residues with a high precision. The cross sections of these residues were determined with uncertainties below 20% for most of the cases. These data are compared to other previous measurements with stable isotopes and are also used to benchmark different model calculations., This work has been partially supported by the Spanish Ministry for Science and Innovation under Grants No. PGC2018-099746-B-C21, No. PGC2018-099746-B-C22, and No. PID2019-104390GB-100; Xunta de Galicia under program “Grupos de referencia competitiva” (Project No. ED431C 2017/54); the German Bundesministerium für Bildung und Forschung (BMBF) (Grants No. 05P12RDFN8, No. 05P15RDFN1, and No. 05P19RDFN); the Swedish Research Council; and U.S. Department of Energy Grant No. DE-FG02-08ER41533. J.J.R.S. acknowledges the support of Xunta de Galicia under Grant No. ED481B-2017/002.

Marko Röder et al. ; 11 págs.; 10 figs.; 2 tabs., Neutron-rich light nuclei and their reactions play an important role in the creation of chemical elements. Here, data from a Coulomb dissociation experiment on N20,21 are reported. Relativistic N20,21 ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Using the detailed balance theorem, the N19(n,γ)N20 and N20(n,γ)N21 excitation functions and thermonuclear reaction rates have been determined. The N19(n,γ)N20 rate is up to a factor of 5 higher at T, This work was supported in part by GSI (F&E, DRZUBE), Bundesministerium f¨ur Bildung und Forschung (BMBF) (06DR134I, 05P09CRFN5, 05P12RDFN8, and 05P15RDFN1), the Hemholtz Association Germany through the Nuclear Astrophysics Virtual Institute (NAVI, Grant No. VH-VI-417), the Helmholtz Association Detector Technology and Systems Platform, the Spanish Research funding agency under projects FPA2012-32443, FPA2013- 41267-P, and FPA2013-47831-C2-1-P, the Swedish Research Council, HIC for FAIR and the TUDarmstadt-GSI cooperation contract, the Portuguese FCTproject PTDC/FIS/103902/2008, UK STFC under grants ST/E500651/1 and ST/F011989/1, US NSF Grant No. 1415656, and US DOE Grant No. DE-FG02- 08ER41533

A new high precision measurement of the reaction pp -> pK+Lambda at a beam momentum of 2.95 GeV/c with more than 200,000 analyzed events allows a detailed analysis of differential observables and their inter-dependencies. Correlations of the angular distributions with momenta are examined. The invariant mass distributions are compared for different regions in the Dalitz plots. The cusp structure at the N Sigma threshold is described with the Flatt�� formalism and its variation in the Dalitz plot is analyzed., accepted for publication in Eur. Phys. J.A

The electromagnetic dipole strength below the neutron-separation energy has been studied for the xenon isotopes with mass numbers A = 124, 128, 132, and 134 in nuclear resonance fluorescence experiments using the ELBE bremsstrahlung facility at Helmholtz-Zentrum Dresden-Rossendorf and the HIgS facility at Triangle Universities Nuclear Laboratory Durham. The systematic study gained new information about the influence of the neutron excess as well as of nuclear deformation on the strength in the region of the pygmy dipole resonance. The results are compared with those obtained for the chain of molybdenum isotopes and with predictions of a random-phase approximation in a deformed basis. It turned out that the effect of nuclear deformation plays a minor role compared with the one caused by neutron excess. A global parametrization of the strength in terms of neutron and proton numbers allowed us to derive a formula capable of predicting the summed E1 strengths in the pygmy region for a wide mass range of nuclides., Comment: 5 pages, subimtted to Physical Review Letters

Understanding climate change is pivotal to addressing the global demand for food. Although the extent to which climate change will exacerbate existing stresses or create new challenges for the food system is highly uncertain, finding ways to respond within this context is essential because:1) A delayed response will lead to further accumulations of greenhouse gases and2) The food system is inherently complex - eliminating uncertainty is not possible.This report presents findings based on an interdisciplinary systems level scenario approach designed specifically to address complex societal problems. The project was funded by the Sustainable Consumption Institute to explore how the UK food system may develop and change in response to futures bounded by more or less extreme climate impacts and emission cuts.

Climate change has impacts on agricultural production which, coupled with population growth and structural changes, will make sustainably feeding the world extremely challenging. Many regions are expected to face worsening condition, especially areas with already vulnerable food systems. Some world regions might be favoured by moderate climate change impacts but in any case globally the risk for food systems to be affected by unpredictable weather and extreme weather events is increasing, which makes food supply even more volatile and adaptation necessary. This paper uses the examples of the different staple products wheat, meat and dairy to explore climate change issues. It analyses data on current and projected production and demands as well as climate change and how global production can match projected demands. A suite of adaptation-mitigation scenarios is developed and life cycle assessment is used to calculate the emissions from producing and adapting the products to climate change in the United Kingdom. This showed that utilising climate change benefits can, in the case of wheat lead to emission reduction per unit of product. However, favourable climate change impacts are not expected for livestock production and so a comparison of different production systems and technologies is presented with examination of the interactions between climate change impacts on production, appropriate adaptation measures and mitigation options. While large reductions in emissions per unit of product are likely to be possible, the total emissions of food production are expected to increase to 2050 because of growth in demand. These results will be used to discuss the options for servicing increasing global food demand and improving productivity without increasing global greenhouse gas emissions. A consumer-based emissions accounting framework will be used to evaluate the policy and wider implications of these changes.

Climate change is predicted to have impacts on agricultural productivity which, coupled with growth in population, will make sustainably feeding the world extremely challenging. While some parts of the world are expected to benefit from moderate climate-change related temperature increases and elevated atmospheric CO2 concentrations, others are likely to face worsening agricultural production conditions. Even those regions benefiting from changing average conditions are likely to face more frequent extreme weather events which make agricultural production and food supply more volatile than it already is.This paper uses the example of wheat, as one of the most important staple crops worldwide to explore climate change issues relevant to supply and demand. Published data on current and projected wheat yields under different adaptation strategies are used to analyse the extent to which global production can be increased to match projected demands. A set of wheat supply scenarios was developed which shows that the increasing demand can only be provided by northern hemisphere producers narrowing their yield gaps, utilising climate change benefits and increasing production levels to supply southern hemisphere consumers. Even then there are significant risks associated with food security and resilience which could jeopardise the ability to service the future global wheat demand.