6,513 research outputs found

    Production of doubly heavy baryons via Higgs boson decays

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    We systematically analyzed the production of semi-inclusive doubly heavy baryons (Ξcc\Xi_{cc}, Ξbc\Xi_{bc} and Ξbb\Xi_{bb}) for the process H0→ΞQQ′+Q′ˉ+QˉH^0 \rightarrow \Xi_{QQ'}+ \bar {Q'} + \bar {Q} through four main Higgs decay channels within the framework of non-relativistic QCD. The contributions from the intermediate diquark states, ⟨cc⟩[1S0]6\langle cc\rangle[^{1}S_{0}]_{\mathbf{6}}, ⟨cc⟩[3S1]3ˉ\langle cc\rangle[^{3}S_{1}]_{\mathbf{\bar 3}}, ⟨bc⟩[3S1]3ˉ/6\langle bc\rangle[^{3}S_{1}]_{\mathbf{\bar 3}/ \mathbf{6}}, ⟨bc⟩[1S0]3ˉ/6\langle bc\rangle[^{1}S_{0}]_{\mathbf{\bar 3}/ \mathbf{6}}, ⟨bb⟩[1S0]6\langle bb\rangle[^{1}S_{0}]_{\mathbf{6}} and ⟨bb⟩[3S1]3ˉ\langle bb\rangle[^{3}S_{1}]_{\mathbf{\bar 3}}, have been taken into consideration. The differential distributions and three main sources of the theoretical uncertainties have been discussed. At the High Luminosity Large Hadron Collider, there will be about 0.43×104\times10^4 events of Ξcc\Xi_{cc}, 6.32×104\times10^4 events of Ξbc\Xi_{bc} and 0.28×104\times10^4 events of Ξbb\Xi_{bb} produced per year. There are fewer events produced at the Circular Electron Positron Collider and the International Linear Collider, about 0.26×1020.26\times 10^{2} events of Ξcc\Xi_{cc}, 3.83×1023.83\times 10^{2} events of Ξbc\Xi_{bc} and 0.17×1020.17\times 10^{2} events of Ξbb\Xi_{bb} in operation.Comment: 15 pages, 3 figures, 7 table

    IDEF method-based simulation model design and development

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    The purpose of this study is to provide an IDEF method-based integrated framework for a business process simulation model to reduce the model development time by increasing the communication and knowledge reusability during a simulation project. In this framework, simulation requirements are collected by a function modeling method (IDEF0) and a process modeling method (IDEF3). Based on these requirements, a common data model is constructed using the IDEF1X method. From this reusable data model, multiple simulation models are automatically generated using a database-driven simulation model development approach. The framework is claimed to help both requirement collection and experimentation phases during a simulation project by improving system knowledge, model reusability, and maintainability through the systematic use of three descriptive IDEF methods and the features of the relational database technologies. A complex semiconductor fabrication case study was used as a testbed to evaluate and illustrate the concepts and the framework. Two different simulation software products were used to develop and control the semiconductor model from the same knowledge base. The case study empirically showed that this framework could help improve the simulation project processes by using IDEF-based descriptive models and the relational database technology. Authors also concluded that this framework could be easily applied to other analytical model generation by separating the logic from the dataPeer Reviewe
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