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Scattering resonance state of Br＋HBr（v=0）→BrH（v＇=0）＋Br Reaction Explored by Partial Potential Energy Surface Method

Chemical Research in Chinese Universities 2013年第6期29卷 1159-1163页

作者： LU Xi ZHANG Ming-tao CAI Zheng-ting SUN Xiao-min Department of Chemistry College of ChemistryNankai University Tianjin 300071 P.R.China Computational Center for Molecular Science College of ChemistryNankai University Tianjin 300071 P.R.China Institute of Theoretical Chemistry Shandong University Jinan 250100 P.R.China Environment Research Institute Shandong University Jinan 250100 P.R.China

The partial potential energy surface（PPES） of Br＋HBr（v=0）→BrH（v＇=0）＋Br was designed by coupling the vibration energy and the minimum energy of the corresponding reaction path, Vmep. All the calculations were performed at the theoritical level of QCISD（T）/6-311＋＋G＊＊//MP2/6-31 1＋＋G＊＊. Based on the analysis of PPES, the dynamic ＂Eyring Lake＂ mechanism gave birth to the scattering resonance state. The resonance energy was also obtained via PPES. Then a lifetime matrix of the resonance state was established by solving the translational wave-function via the numerical propagation method. Then the reaction resonance lifetime was calculated to be 125 fs. It is in good agreement with the experimental result.

关键词： Partial potential energy surface resonance state Lifetime

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The possible KK^(*)and D^(*)bound and resonance states by solving the Schrodinger equation

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Communications in Theoretical Physics 2024年第10期76卷 85-91页

作者： Bao-Xi Sun Qin-Qin Cao Ying-Tai Sun School of Physics and Optoelectronic Engineering Beijing University of TechnologyBeijing 100124China School of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144China

The Schrodinger equation with a Yukawa type of potential is solved *** different boundary conditions are taken into account,a series of solutions are indicated as a Bessel function,the first kind of Hankel function and the second kind of Hankel function,***,the scattering processes of K^(*)and D^(*)are *** the K^(*)sector,the f_(1)(1285)particle is treated as a K^(*)bound state,therefore,the coupling constant in the K^(*)Yukawa potential can be fixed according to the binding energy of the f_(1)(1285)***,a K^(*)resonance state is generated by solving the Schrodinger equation with the outgoing wave condition,which lies at 1417-i18 MeV on the complex energy *** is reasonable to assume that the K^(*)resonance state at 1417-i18 MeV might correspond to the f_(1)(1420)particle in the review of the Particle Data *** the D^(*)sector,since the X(3872)particle is almost located at the D^(*)threshold,its binding energy is approximately equal to ***,the coupling constant in the D^(*)Yukawa potential is determined,which is related to the first zero point of the zero-order Bessel *** to the K^(*)case,four resonance states are produced as solutions of the Schrodinger equation with the outgoing wave *** is assumed that the resonance states at 3885~i1 MeV,4029-i108 MeV,4328-i191 MeV and 4772-i267 MeV might be associated with the Zc(3900),the X(3940),theχ_(c1)(4274)andχ_(c1)(4685)particles,*** is noted that all solutions are isospin degenerate.

关键词： non-Hermitian quantum mechanics Schrodinger equation meson-meson interaction one-pion exchanging potential resonance state bound state

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Single-particle resonance states of ^(122)Zr in relativistic mean-field theory combined with real stabilization method

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Chinese Physics C 2009年第S1期33卷 101-104页

作者：梅花陈洪尧江明 School of Physical Science and Technology Southwest University School of Physics Peking University

Single-particle resonance states of 122Zr are studied in the real stabilization method within the framework of relativistic mean field theory. Two effcient methods are adopted to extract the resonance energy and width of 122Zr. The results are compared with those obtained from the analytic continuation in the coupling approach and scattering phase-shift methods.

关键词： resonance state real stabilization method resonance energy and width density of states

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