cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.144918.v1/t20
title: "Table 20 (ggF HH Acc X Eff on $c_{gghh}$)" of "Studies of new Higgs boson interactions through nonresonant $HH$ production in the $b\bar{b}\gamma\gamma$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector"

description: The acceptance times efficiency for the signal ggF $HH$ process in each analysis category as a function of the $c_{gghh}$ HEFT coefficients. The dashed lines denote values that are excluded at 95% CL. The bottom panels show the efficiency of the sum of all analysis categories.
description: A search for nonresonant Higgs boson pair production in the $b\bar{b}\gamma\gamma$ final state is performed using 140 fb$^{-1}$ of proton--proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. This analysis supersedes and expands upon the previous nonresonant ATLAS results in this final state based on the same data sample. The analysis strategy is optimised to probe anomalous values not only of the Higgs ($H$) boson self-coupling modifier $\kappa_\lambda$ but also of the quartic $HHVV$ ($V=W,Z$) coupling modifier $\kappa_{2V}$. No significant excess above the expected background from Standard Model processes is observed. An observed upper limit $\mu_{HH}&lt;4.0$ is set at 95% confidence level on the Higgs boson pair production cross-section normalised to its Standard Model prediction. The 95% confidence intervals for the coupling modifiers are $-1.4&lt;\kappa_\lambda&lt;6.9$ and $-0.5&lt;\kappa_{2V}&lt;2.7$, assuming all other Higgs boson couplings except the one under study are fixed to the Standard Model predictions. The results are interpreted in the Standard Model effective field theory and Higgs effective field theory frameworks in terms of constraints on the couplings of anomalous Higgs boson (self-)interactions
DOI: 10.17182/hepdata.144918.v1/t21
title: "Table 21 (ggF HH Acc X Eff on $c_{H}$)" of "Studies of new Higgs boson interactions through nonresonant $HH$ production in the $b\bar{b}\gamma\gamma$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector"

description: The acceptance times efficiency for the signal ggF $HH$ process in each analysis category as a function of the $c_{H}$ SMEFT coefficients. The dashed lines denote values that are excluded at 95% CL. The bottom panels show the efficiency of the sum of all analysis categories.
description: A search for nonresonant Higgs boson pair production in the $b\bar{b}\gamma\gamma$ final state is performed using 140 fb$^{-1}$ of proton--proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. This analysis supersedes and expands upon the previous nonresonant ATLAS results in this final state based on the same data sample. The analysis strategy is optimised to probe anomalous values not only of the Higgs ($H$) boson self-coupling modifier $\kappa_\lambda$ but also of the quartic $HHVV$ ($V=W,Z$) coupling modifier $\kappa_{2V}$. No significant excess above the expected background from Standard Model processes is observed. An observed upper limit $\mu_{HH}&lt;4.0$ is set at 95% confidence level on the Higgs boson pair production cross-section normalised to its Standard Model prediction. The 95% confidence intervals for the coupling modifiers are $-1.4&lt;\kappa_\lambda&lt;6.9$ and $-0.5&lt;\kappa_{2V}&lt;2.7$, assuming all other Higgs boson couplings except the one under study are fixed to the Standard Model predictions. The results are interpreted in the Standard Model effective field theory and Higgs effective field theory frameworks in terms of constraints on the couplings of anomalous Higgs boson (self-)interactions
DOI: 10.17182/hepdata.144918.v1/t25
title: "Table 25 (HH expected yields on $c_{gghh}$)" of "Studies of new Higgs boson interactions through nonresonant $HH$ production in the $b\bar{b}\gamma\gamma$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector"

description: The yield of the signal ggF $HH$ process in each analysis category as a function of the $c_{gghh}$ HEFT coefficients. The dashed lines denote values that are excluded at 95% CL. The bottom panels show the efficiency of the sum of all analysis categories.
description: A search for nonresonant Higgs boson pair production in the $b\bar{b}\gamma\gamma$ final state is performed using 140 fb$^{-1}$ of proton--proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. This analysis supersedes and expands upon the previous nonresonant ATLAS results in this final state based on the same data sample. The analysis strategy is optimised to probe anomalous values not only of the Higgs ($H$) boson self-coupling modifier $\kappa_\lambda$ but also of the quartic $HHVV$ ($V=W,Z$) coupling modifier $\kappa_{2V}$. No significant excess above the expected background from Standard Model processes is observed. An observed upper limit $\mu_{HH}&lt;4.0$ is set at 95% confidence level on the Higgs boson pair production cross-section normalised to its Standard Model prediction. The 95% confidence intervals for the coupling modifiers are $-1.4&lt;\kappa_\lambda&lt;6.9$ and $-0.5&lt;\kappa_{2V}&lt;2.7$, assuming all other Higgs boson couplings except the one under study are fixed to the Standard Model predictions. The results are interpreted in the Standard Model effective field theory and Higgs effective field theory frameworks in terms of constraints on the couplings of anomalous Higgs boson (self-)interactions
DOI: 10.1594/pangaea.806153
title: Nutrients measured on water bottle samples during VALDIVIA cruise VA153
DOI: 10.1594/pangaea.806276
title: Physical oceanography measured on water bottle samples during POSEIDON cruise POS200/7
DOI: 10.1594/pangaea.806302
title: Microzooplankton biomass and grazing measured on water bottle samples during POSEIDON cruise POS200/7
DOI: 10.1594/pangaea.807153
title: (Figure 4 and Figure 6) Downcore records of δ¹⁸O-values measured on Cibicidoides wuellerstorfi of sediment core GeoB9214-1 from Galway Mound
DOI: 10.1594/pangaea.807156
title: (Figure 4 and Figure 6) Downcore records of δ¹⁸O-values measured on Planulina ariminensis of sediment core GeoB9214-1 from Galway Mound
DOI: 10.1594/pangaea.807175
title: (Figure 4 and Figure 6) Calcium and iron element analyses, and Ca/(Ca+Fe)-ratios of sediment core GeoB9214-1 from Galway Mound
DOI: 10.1594/pangaea.807177
title: (Figure 5 and Figure 6) Downcore records of δ¹⁸O-values measured on Planulina ariminensis of sediment core GeoB9223-1 from Galway Mound
DOI: 10.1594/pangaea.807180
title: (Figure 5 and Figure 6) Calcium and iron element analyses, and Ca/(Ca+Fe)-ratios of sediment core GeoB9223-1 from Galway Mound
DOI: 10.1594/pangaea.805863
title: Physical oceanography during POSEIDON cruise POS200/7

description: Leibniz Institute for Baltic Sea Research. Authorship was originally "OMEX Project Members; BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.805865
title: Physical oceanography during VALDIVIA cruise VA154

description: University of Hamburg, Department of Chemistry. Authorship was originally "OMEX Project Members; BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.805975
title: Pigments measured on water bottle samples during VALDIVIA cruise VA154
DOI: 10.1594/pangaea.806021
title: Physical oceanography measured on water bottle samples during POSEIDON cruise POS200/7
DOI: 10.1594/pangaea.806023
title: Physical oceanography measured on water bottle samples during VALDIVIA cruise VA154
DOI: 10.1594/pangaea.807570
title: Hydrochemistry measured on water bottle samples during METEOR cruise M36/2
DOI: 10.1594/pangaea.807127
title: (Figure 3 and Figure 6) Downcore records of δ¹⁸O-values measured on Cibicidoides wuellerstorfi of sediment core GeoB9213-1 from Galway Mound
DOI: 10.1594/pangaea.807130
title: (Figure 3 and Figure 6) Downcore records of δ¹⁸O-values measured on Planulina ariminensis of sediment core GeoB9213-1 from Galway Mound
DOI: 10.1594/pangaea.807133
title: (Figure 3 and Figure 6) Calcium and iron element analyses, and Ca/(Ca+Fe)-ratios of sediment core GeoB9213-1 from Galway Mound
DOI: 10.1594/pangaea.807385
title: Composite movie of OFOS pictures at station PS80/356-1 showing fresh Melosira arctica deposits of the ice station #7 survey

description: one image every 20 seconds
DOI: 10.1594/pangaea.808177
title: Thin section description of dredge samples at station PS59/199-1
DOI: 10.1594/pangaea.807386
title: Video survey showing fresh Melosira deposits of ice station #7 and sampling of algae and underlying sediments by the multiple corer at station PS80/361-1
DOI: 10.1594/pangaea.807411
title: Particle analysis during POSEIDON cruise POS200/7
DOI: 10.1594/pangaea.807424
title: Zooplankton abundance during POSEIDON cruise POS200/7
DOI: 10.1594/pangaea.807426
title: P-wave velocity, magnetic susceptibility, porosity and density of sediment core GeoB8520-1

description: New measurements after three years of recovery (new measurement DATE/TIME: 2008-03-10T15:51:00).See also dataset doi:10.1594/PANGAEA.140106 and doi:10.1594/PANGAEA.140428
DOI: 10.1594/pangaea.807433
title: P-wave velocity, magnetic susceptibility, porosity and density of sediment core GeoB8523-1

description: New measurements after three years of recovery (new measurement DATE/TIME: 2008-03-10T14:38:00).See also dataset doi:10.1594/PANGAEA.140109 and doi:10.1594/PANGAEA.140431
DOI: 10.1594/pangaea.807467
title: Undrained shear strength of sediment core GeoB8519-1

description: New measurements after three years of recovery (new measurement DATE/TIME: 2008-06-24).
DOI: 10.1594/pangaea.807468
title: Undrained shear strength of sediment core GeoB8520-1

description: New measurements after three years of recovery (new measurement DATE/TIME: 2008-09-05).
DOI: 10.1594/pangaea.807469
title: Undrained shear strength of sediment core GeoB8523-1

description: New measurements after three years of recovery (new measurement DATE: 2008-09-05).
DOI: 10.1594/pangaea.808178
title: Thin section description of dredge samples at station PS59/201
DOI: 10.1594/pangaea.808179
title: Thin section description of dredge samples at station PS59/204
DOI: 10.1594/pangaea.808180
title: Thin section description of dredge samples at station PS59/206
DOI: 10.1594/pangaea.808181
title: Thin section description of dredge samples at station PS59/212-1
DOI: 10.1594/pangaea.808182
title: Thin section description of dredge samples at station PS59/214-1
DOI: 10.1594/pangaea.808183
title: Thin section description of dredge samples at station PS59/214-2
DOI: 10.1594/pangaea.808184
title: Thin section description of dredge samples at station PS59/216-1
DOI: 10.1594/pangaea.807531
title: Grain size analyses of sediment core GeoB8519-1

description: New measurements after three years of recovery (new measurement DATE/TIME: 2008-06-24).
DOI: 10.1594/pangaea.808185
title: Thin section description of dredge samples at station PS59/218
DOI: 10.1594/pangaea.807533
title: Grain size analyses of sediment core GeoB8520-1

description: New measurements after three years of recovery (new measurement DATE/TIME: 2008-09-05).
DOI: 10.1594/pangaea.808186
title: Thin section description of dredge samples at station PS59/222
DOI: 10.1594/pangaea.807534
title: Grain size analyses of sediment core GeoB8523-1

description: New measurements after three years of recovery (new measurement DATE: 2008-09-05).
DOI: 10.1594/pangaea.808187
title: Thin section description of dredge samples at station PS59/224
DOI: 10.1594/pangaea.808192
title: Raw data from Miniature Autonomous Plume Recorder (MAPR) during POLARSTERN cruise ARK-XVII/2 (AMORE)
DOI: 10.1594/pangaea.808194
title: OFOS observations at station PS59/219-1
DOI: 10.1594/pangaea.808650
title: (Table 1) Iron concentations in the water column during POLARSTERN cruise ANT-XXII/2
DOI: 10.1594/pangaea.808652
title: (Table 3) Diffusive dissolved iron fluxes during POLARSTERN cruises ANT-XXII/2 and ANT-X/6
DOI: 10.1594/pangaea.808654
title: (Table 2) Upper mixed layer depth and average Fe concentration during POLARSTERN cruises in the Atlantic Sector of the Southern Ocean

description: Distance to coast = distance from the nearest Antarctic Peninsula, South Sandwich Islands, or western Weddell Sea shorelines. For stations in the ACC further away than 2000 km, the East Antarctic mainland (about 2000 km away) and South Africa (about 1800 km away) become closer than the West Antarctic continental shelves. However, in light of the general easterly circulation and limited cross-frontal exchange between the ACC and subtropical waters, we deem the distance to the West Antarctic continental shelves as the most relevant parameter. Diffusivity Kh was allowed to increase with scale length [Okubo, 1971] until a value of 1000 m**2/s [Marshall et al., 2006, doi:10.1175/JPO2949.1] was reached.
DOI: 10.1594/pangaea.808655
title: (Table 4) Daily horizontal and vertical fluxes of dissolved iron during POLARSTERN cruises in the Atlantic Sector of the Southern Ocean

description: Total DFe flux includes 0.0099 ± 0.0138 µmol/m**2/day atmospheric DFe flux. Distance to coast = distance from the nearest Antarctic Peninsula, South Sandwich Islands, or western Weddell Sea shorelines. For stations in the ACC further away than 2000 km, the East Antarctic mainland (about 2000 km away) and South Africa (about 1800 km away) become closer than the West Antarctic continental shelves. However, in light of the general easterly circulation and limited cross-frontal exchange between the ACC and subtropical waters, we deem the distance to the West Antarctic continental shelves as the most relevant parameter.
DOI: 10.1594/pangaea.808564
title: (Table 2) Radiocarbon ages on Arctic box and multicores

description: Paleo-sea-ice history in the Arctic Ocean was reconstructed using the sea-ice dwelling ostracode Acetabulastoma arcticum from late Quaternary sediments from the Mendeleyev, Lomonosov, and Gakkel Ridges, the Morris Jesup Rise and the Yermak Plateau. Results suggest intermittently high levels of perennial sea ice in the central Arctic Ocean during Marine Isotope Stage (MIS) 3 (25-45 ka), minimal sea ice during the last deglacial (16-11 ka) and early Holocene thermal maximum (11-5 ka) and increasing sea ice during the mid-to-late Holocene (5-0 ka). Sediment core records from the Iceland and Rockall Plateaus show that perennial sea ice existed in these regions only during glacial intervals MIS 2, 4, and 6. These results show that sea ice exhibits complex temporal and spatial variability during different climatic regimes and that the development of modern perennial sea ice may be a relatively recent phenomenon.
description: Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Cronin, Thomas M; Gemery, L; Briggs, W M; Jakobsson, Martin; Polyak, Leonid; Brouwers, E M (2010): Quaternary Sea-ice history in the Arctic Ocean based on a new Ostracode sea-ice proxy. Quaternary Science Reviews, 29(25-26), 3415-3429
DOI: 10.1594/pangaea.809255
title: Sediment echosounder (3.5 kHz) profiles of POLARSTERN cruise ANT-IV/4

description: The 3.5 kHz-sediment echosounder profiles of cruise ANT-IV/4 were originally recorded on 18 paper rolls. Each roll was digitized using a scanner "Océ CS 4044 Colour System" by SAGA GmbH (http://www.digitalarchivieren.de). The resulting 18 files are stored in tif-format with a resolution of 200 dpi and were zipped to reduce its size by about 30%.
DOI: 10.1594/pangaea.809438
title: Deep-water amphipods from mooring time-series FEVI7 in 800 m depth at AWI HAUSGARTEN
DOI: 10.1594/pangaea.809000
title: XRF measurements on dry powder from sediment core GeoB16202-2
DOI: 10.1594/pangaea.809440
title: Deep-water amphipods from mooring time-series FEVI10 in 2357 m depth at AWI HAUSGARTEN
DOI: 10.1594/pangaea.809524
title: (Table 1) Annual gross and new primary production rates obtained for areas centered on the AWI-HAUSGARTEN mooring (2000-2005)

description: The lack of extended dataset has so far prevented an inclusive understanding of the long-term relationships between primary production (PP) and vertical export in the Arctic Ocean. It is urgent to investigate these connections as Arctic ecosystems are on the verge of climate-related shifts, which could be caused by the combined effects of increase in Pacific and Atlantic inflow, climate warming, and sea ice decline. For a period of 6 years we investigated the degree of coupling between PP and export by making use of modelled PP rates and vertical particle fluxes collected with sediment traps moored at ~300 m depth in the eastern Fram Strait. Our analyses indicate that total and new simulated PP averaged for different areas centered on the mooring location (5-200 km radius) explain at best 20-44% of the observed biogenic particle fluxes at 300 m, when applying extended time-lags (55-90 days) between PP and vertical fluxes. Based on this phasing, we define a conceptual framework that presents the temporal dimension as a prime determinant of the maximum strength of the PP-export coupling at a given depth. Our results support that planktonic food webs in the Fram Strait process heavily biogenic material in the epipelagic zone, but we further suggest that Atlantic-Arctic water interactions induce a particular ecological setting responsible for the extended turn-over. In conclusion, we hypothesize that global warming could promote a transition toward a more retentive ecosystem in the Fram Strait region despite the likely increase of pelagic PP in the Arctic Ocean.
description: Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Forest, Alexandre; Wassmann, Paul; Slagstad, Dag; Bauerfeind, Eduard; Nöthig, Eva-Maria; Klages, Michael (2010): Relationships between primary production and vertical particle export at the Atlantic-Arctic boundary (Fram Strait, HAUSGARTEN). Polar Biology, 33(12), 1733-1746
DOI: 10.1594/pangaea.809002
title: XRF measurements on dry powder from sediment core GeoB16203-1
DOI: 10.1594/pangaea.809004
title: XRF measurements on dry powder from sediment core GeoB16205-4
DOI: 10.1594/pangaea.809006
title: XRF measurements on dry powder from sediment core GeoB16206-1
DOI: 10.1594/pangaea.809699
title: (Table 1) Water column silicic acid concentrations and Si isotopic composition during Marion Dufresne cruise MD166 off South Africa

description: Silicon isotopic signatures (d30Si) of water column silicic acid (Si(OH)4) were measured in the Southern Ocean, along a meridional transect from South Africa (Subtropical Zone) down to 57° S (northern Weddell Gyre). This provides the first reported data of a summer transect across the whole Antarctic Circumpolar Current (ACC). d30Si variations are large in the upper 1000 m, reflecting the effect of the silica pump superimposed upon meridional water transfer across the ACC: the transport of Antarctic surface waters northward by a net Ekman drift and their convergence and mixing with warmer upper-ocean Si-depleted waters to the north. Using Si isotopic signatures, we determine different mixing interfaces: the Antarctic Surface Water (AASW), the Antarctic Intermediate Water (AAIW), and thermoclines in the low latitude areas. The residual silicic acid concentrations of end-members control the d30Si alteration of the mixing products and with the exception of AASW, all mixing interfaces have a highly Si-depleted mixed layer end-member. These processes deplete the silicic acid AASW concentration northward, across the different interfaces, without significantly changing the AASW d30Si composition. By comparing our new results with a previous study in the Australian sector we show that during the circumpolar transport of the ACC eastward, the d30Si composition of the silicic acid pools is getting slightly, but significantly lighter from the Atlantic to the Australian sectors. This results either from the dissolution of biogenic silica in the deeper layers and/or from an isopycnal mixing with the deep water masses in the different oceanic basins: North Atlantic Deep Water in the Atlantic, and Indian Ocean deep water in the Indo-Australian sector. This isotopic trend is further transmitted to the subsurface waters, representing mixing interfaces between the surface and deeper layers. Through the use of d30Si constraints, net biogenic silica production (representative of annual export), at the Greenwich Meridian is estimated to be 5.2 ± 1.3 and 1.1 ± 0.3 mol Si/m**2 for the Antarctic Zone and Polar Front Zone, respectively. This is in good agreement with previous estimations. Furthermore, summertime Si-supply into the mixed layer of both zones, via vertical mixing, is estimated to be 1.6 ± 0.4 and 0.1 ± 0.5 mol Si/m**2, respectively.
description: Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Fripiat, François; Cavagna, Anne-Julie; Dehairs, Frank; Speich, Sabrina; André, Luc; Cardinal, Damien (2011): Silicon pool dynamics and biogenic silica export in the Southern Ocean inferred from Si-isotopes. Ocean Science, 7(5), 533-547
DOI: 10.1594/pangaea.809702
title: (Table 1) Water column biogenic silica concentrations and Si isotopic composition during Marion Dufresne cruise MD166 off South Africa

description: Southern Ocean biogeochemical processes have an impact on global marine primary production and global elemental cycling, e.g. by likely controlling glacial-interglacial pCO2 variation. In this context, the natural silicon isotopic composition (d30Si) of sedimentary biogenic silica has been used to reconstruct past Si-consumption:supply ratios in the surface waters. We present a new dataset in the Southern Ocean from a IPY-GEOTRACES transect (Bonus-GoodHope) which includes for the first time summer d30Si signatures of suspended biogenic silica (i) for the whole water column at three stations and (ii) in the mixed layer at seven stations from the subtropical zone up to the Weddell Gyre. In general, the isotopic composition of biogenic opal exported to depth was comparable to the opal leaving the mixed layer and did not seem to be affected by any diagenetic processes during settling, even if an effect of biogenic silica dissolution cannot be ruled out in the northern part of the Weddell Gyre. We develop a mechanistic understanding of the processes involved in the modern Si-isotopic balance, by implementing a mixed layer model. We observe that the accumulated biogenic silica (sensu Rayleigh distillation) should satisfactorily describe the d30Si composition of biogenic silica exported out of the mixed layer, within the limit of the current analytical precision on the d30Si. The failures of previous models (Rayleigh and steady state) become apparent especially at the end of the productive period in the mixed layer, when biogenic silica production and export are low. This results from (1) a higher biogenic silica dissolution:production ratio imposing a lower net fractionation factor and (2) a higher Si-supply:Si-uptake ratio supplying light Si-isotopes into the mixed layer. The latter effect is especially expressed when the summer mixed layer becomes strongly Si-depleted, together with a large vertical silicic acid gradient, e.g. in the Polar Front Zone and at the Polar Front.
description: Mixed layer depths: Large 6 = 80-88 m; Large 7 = 100-101 m; Super 1 = 13-19 m; Super 2 = 23-39 m; Super 3 = 82-88 m; Super 4 = 134-140 m; Super 5 = 58-115 m. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Fripiat, François; Cavagna, Anne-Julie; Dehairs, Frank; de Brauwere, A; André, Luc; Cardinal, Damien (2012): Processes controlling the Si-isotopic composition in the Southern Ocean and application for paleoceanography. Biogeosciences, 9(7), 2443-2457
DOI: 10.1594/pangaea.808835
title: Continuous thermosalinograph oceanography along POLARSTERN cruise track ARK-XXVII/3

description: Version 2, 2016-10-20