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- Aprile, E., et al.
(författare)
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Effective Field Theory and Inelastic Dark Matter Results from XENON1T
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- In this work we expand on the XENON1T nuclear recoil searches and study the individual signals of Dark Matter interactions from operators up to dimension-eight in a Chiral Effective Field Theory (ChEFT) as well as a model of inelastic Dark Matter using data from the two science runs of the detector totalling 1 tonne*year exposure. For these analyses we extended the region of interest from [4.9, 40.9]keVnr to [4.9, 54.4]keVnr to enhance our sensitivity for signals that peak at nonzero energies. We show that the data is consistent with a background only hypothesis, with small excesses in the models which peak between 20 and 50keVnr, obtaining a maximum local discovery significance of 1.7 for the VVs ChEFT model for a WIMP mass of 70GeV/c2, and 1.8 for an iDM particle of 50GeV/c2 with a mass splitting of 100keV/c2. For each model we report 90% confidence level upper limits. We also report limits on three benchmark models of WIMP interaction using ChEFT for which we investigate the effect of isospin breaking interactions, reporting up to 6 orders of magnitude weaker limits with respect to the isospin conserving case driven by cancellations in the expected rate.
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| 4. |
- Li, K., et al.
(författare)
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MBE-based SiGe/Si heterojunction multilayer structures
- 2001
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Ingår i: Journal of Crystal Growth. - 0022-0248 .- 1873-5002. ; 227-228, s. 744-748
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- In this paper, SiGe/Si multilayer heterostructures prepared by molecular beam epitaxy (MBE) are described with the aim of manufacturing SiGe heterojunction bipolar transistors (HBTs). Based on the simulations made by Medici, device structures have been designed and grown. The quality of the MBE layered structures has been characterized by reflection high-energy electron diffraction, X-ray diffraction, secondary ion mass spectrometry and spreading resistance. Furthermore, SiGe-HBTs have been fabricated. Promising DC and RF results of processed HBT devices have been obtained. © 2001 Elsevier Science B.V.
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| 6. |
- Wei, Chu, et al.
(författare)
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CO2 allocation and equity issues under China's carbon neutrality targets : Recent advances and a review
- 2024
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Ingår i: China economic review. - : Elsevier. - 1043-951X .- 1873-7781. ; 83
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- This editorial establishes the context for our special issue, devoted to exploring CO2 allocation and equity considerations within the framework of China's ambitions for carbon neutrality. As the world's largest greenhouse gas emitter, China has made a pivotal development in mitigating climate change efforts with its commitment to achieving carbon neutrality by 2060. This collection of 16 diverse papers delves into recent advancements, challenges, and thematic explorations related to carbon dioxide emissions, providing a holistic analysis of the allocation mechanisms and the critical balance between equity and efficiency. The contributions, which span a wide range of disciplines, collectively reveal the nuances of integrating economic growth, social justice, and environmental stewardship in China's transition to a sustainable, low -carbon future. The editorial not only synthesizes the key insights from the included papers but also frames the overarching narrative, highlighting the significance of collaborative and equitable approaches in achieving China's carbon neutrality targets.
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