CHARM(Complex Hazardous Air Release Model)是一个集源模型和扩散模型于一体的综合性模型,可模拟重气体、中性气体和轻气体的扩散,也可用于模拟热辐射、超压和颗粒物沉降的扩散轨迹。简要介绍了CHARM模型的发展历程及各模块功能,重点...CHARM(Complex Hazardous Air Release Model)是一个集源模型和扩散模型于一体的综合性模型,可模拟重气体、中性气体和轻气体的扩散,也可用于模拟热辐射、超压和颗粒物沉降的扩散轨迹。简要介绍了CHARM模型的发展历程及各模块功能,重点说明了该模型核心模块(扩散模块)采用的风场模型、扩散模式及其他相关算法。依据模型特点和适用条件,探讨了CHARM模型在环境风险评价工作中的应用前景。展开更多
We report here the mass spectrum and magnetic moments of ccq（q ∈ u,d,s） systems in the potential model framework by assuming the inter-quark potential as the colour coulomb plus power form with power index ν varyi...We report here the mass spectrum and magnetic moments of ccq（q ∈ u,d,s） systems in the potential model framework by assuming the inter-quark potential as the colour coulomb plus power form with power index ν varying between 0.1 to 2.0.Here the two charm quarks are considered for the diquark states.The conventional one gluon exchange interaction has been employed to get the hyperfine and the fine structure between different states.We have predicted many low-lying states whose experimental verification can exclusively support the quark-diquark structure of the baryons.展开更多
Using the one-boson-exchange model,we studied the possible existence of very loosely bound hidden-charm molecular baryons composed of an anti-charmed meson and a charmed baryon.Our numerical results indicate that the ...Using the one-boson-exchange model,we studied the possible existence of very loosely bound hidden-charm molecular baryons composed of an anti-charmed meson and a charmed baryon.Our numerical results indicate that the Σ c ＊ and Σ c states exist,but that the Λ c and Λ c ＊ molecular states do not.展开更多
Using the one-boson-exchange model, we investigate the Λcs^＊, Σcs^＊, Σc^＊s^＊, Ξc^＊, Ξ＇c^＊, and Ξc^＊^＊ interactions by considering the one-eta-exchange and/or one-pion-exchange contributions. We further ...Using the one-boson-exchange model, we investigate the Λcs^＊, Σcs^＊, Σc^＊s^＊, Ξc^＊, Ξ＇c^＊, and Ξc^＊^＊ interactions by considering the one-eta-exchange and/or one-pion-exchange contributions. We further predict the existence of hidden-charm molecular pentaquarks. Promising candidates for hidden-charm molecular pentaquarks include a Ξ＇cD^＊ state with 0（（1/2）^-） and the Ξc^＊D^＊ states with 0（1/2^-） and 0（3/2^-）. Experimental searches for these predicted hidden-charm molecular pentaquarks are an interesting future research topic for experiments like LHCb.展开更多
文摘CHARM(Complex Hazardous Air Release Model)是一个集源模型和扩散模型于一体的综合性模型,可模拟重气体、中性气体和轻气体的扩散,也可用于模拟热辐射、超压和颗粒物沉降的扩散轨迹。简要介绍了CHARM模型的发展历程及各模块功能,重点说明了该模型核心模块(扩散模块)采用的风场模型、扩散模式及其他相关算法。依据模型特点和适用条件,探讨了CHARM模型在环境风险评价工作中的应用前景。
基金the financial support from University Grant Commission,Government of India,under a Major Research Project F.32-31/2006(SR)
文摘We report here the mass spectrum and magnetic moments of ccq（q ∈ u,d,s） systems in the potential model framework by assuming the inter-quark potential as the colour coulomb plus power form with power index ν varying between 0.1 to 2.0.Here the two charm quarks are considered for the diquark states.The conventional one gluon exchange interaction has been employed to get the hyperfine and the fine structure between different states.We have predicted many low-lying states whose experimental verification can exclusively support the quark-diquark structure of the baryons.
基金Supported by National Natural Science Foundation of China (11175073,11075004,11021092,11035006,11047606,10805048)Ministry of Science and Technology of China (2009CB825200)+1 种基金Ministry of Education of China (FANEDD 200924,DPFIHE20090211120029,NCET NCET-10-0442)Fundamental Research Funds for the Central Universities(lzujbky-2010-69)
文摘Using the one-boson-exchange model,we studied the possible existence of very loosely bound hidden-charm molecular baryons composed of an anti-charmed meson and a charmed baryon.Our numerical results indicate that the Σ c ＊ and Σ c states exist,but that the Λ c and Λ c ＊ molecular states do not.
基金Supported by National Natural Science Foundation of China(11222547,11175073,11675228)Major State Basic Research Development Program in China(2014CB845405)+1 种基金Fundamental Research Funds for the Central Universitiessupported by the National Program for Support of Top-notch Young Professionals
文摘Using the one-boson-exchange model, we investigate the Λcs^＊, Σcs^＊, Σc^＊s^＊, Ξc^＊, Ξ＇c^＊, and Ξc^＊^＊ interactions by considering the one-eta-exchange and/or one-pion-exchange contributions. We further predict the existence of hidden-charm molecular pentaquarks. Promising candidates for hidden-charm molecular pentaquarks include a Ξ＇cD^＊ state with 0（（1/2）^-） and the Ξc^＊D^＊ states with 0（1/2^-） and 0（3/2^-）. Experimental searches for these predicted hidden-charm molecular pentaquarks are an interesting future research topic for experiments like LHCb.
