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Recent heavy-ion collision experiments reported a surprisingly short lifetime for the hypertriton, which has been recognized as the hypertriton lifetime puzzle. Our J-PARC E73 experiment contributes to solve this puzzle with an independent experimental method by employing 3He(K−, π0) 3ΛH reaction. In this contribution, we will demonstrate our capability to provide 3ΛH binding energy information by deriving the production cross section ratio, σ3ΛH/σ4ΛH. The production cross section data for 3ΛH and 4ΛH are already available as the pilot run of E73 experiment and data analysis is in progress.

The interaction of vector meson with nucleon, vector meson-nucleon scattering length | α VN | , is an important component of the study of hadronic interactions. Nowadays many scattering length values have been reported using the recent photoproduction experiment data or quasidata. In addition, the study of trace anomalous energy contribution to the proton mass is also a hot topic in non-perturbative QCD and hadron physics. In this work, we established the relationship between the scattering length of the vector meson-proton | α Vp | and the trace anomaly contribution of the proton mass T A . With the scattering length values extracted by using the Vector Meson Dominance model, we obtained the trace anomaly contribution of the proton mass T A = (19.0 % ± 0.8 % ), which is of similar order of magnitude as the 23 % given by Lattice QCD calculation. [ABSTRACT FROM AUTHOR]

Reasonable design of a kind of non-noble metal catalyst with high catalytic performance, good stability and low cost is of great significance to realize the overall water splitting. Herein, a bottom-up method is proposed to synthesize NiFe layered double hydroxides (NiFe LDHs) coated sulfide/phosphide heterostructure on the nickel foam (Ni3S2-NixPy/NF@NiFe LDH) through hydrothermal method combined with electrodeposition. Low overpotentials of only 248 and 298 mV are required to achieve the current densities of 50 and 100 mA cm−2 for OER. Meanwhile, the HER performance only needs 137 mV at a current density of 10 mA cm−2. [ABSTRACT FROM AUTHOR]

Recently, magnetic field (MF) has been described as a potential way to improve the properties of electrode materials, which significantly enhances the ion diffusion behavior and material wettability. We first synthezised for the first time a comparable carbon-based electrode material (GCA) including active carbon, reduced graphene and carbon nanotubes through a facile stirring method for further research under MF. Herein, 0.15 T of MF induced by two NdFeB magnets was applied on the supercapacitor devices to enhance the energy density, which increased by about 62% for the symmetric supercapacitor (SSC: from 11.2 to 18.1 W h kg−1). An asymmetric supercapacitor composed of the prepared GCA as the anode and NiCoFe/NiCoFe–OH as the cathode was also assembled for research. And it was found that the whole electrochemical performance significantly improved (for example, energy density increased by about 22% for the asymmetric supercapacitor, i.e., from 50.6 to 61.4 W h kg−1). [ABSTRACT FROM AUTHOR]

Capsicum annuum is one of the oldest domesticated crops in the Americas, which is also the most widely grown spice crop in the world. The complete chloroplast genome of C. annuum has been assembled and annotated in this paper. Its length was 156,781 bp, containing a large single-copy region of 87,367 bp, a small single-copy region of 17,850 bp, and a pair of IR regions of 25,782 bp in each. The whole chloroplast genome of C. annuum contains 135 genes, including 89 protein-coding genes (PCGs), 38 transfer RNA genes (tRNAs), and 8 ribosome RNA genes (rRNAs). The overall nucleotide composition is: A of 30.8%, T of 31.5%, C of 19.1% and G of 18.6%, with a total GC content of the chloroplast genome 37.7% and AT of 62.3%. Phylogenetic relationship analysis was based on 10 plant species using the maximum-likelihood (ML) methods, which showed that the position of C. annuum clustered with C. galapagoense. [ABSTRACT FROM AUTHOR]