نوع مقاله : مقاله پژوهشی
نویسنده
دانشکده علوم پایه، کالج الهوسون، دانشگاه کاربردی البلقا، سالت، اردن
چکیده
هدف کار حاضر استفاده از روش شاخص گالیتسکی- میگدال- فاینمن در مورد مولکول‌های دو اتمی 132Xe است، تا جابه‌جایی فاز مؤثری را به دست آوریم که در محاسبه سطح مقطع‌های مؤثر کل و وشکسانی به کار گرفته شده است. این مطالعه نشان می‌دهد که لازم است امواج جزئی تا 14-1) غالب است، در غیر این صورت امواج جزئی D و G غالب خواهند بود. بلندترین قله از تشدید موج- D و – G جزئی حاصل می‌شود که در آنها دستگاه حالت شبه- مقید با مانع مرکز گرای 2,4=l مقید شده است. همچنین سطح مقطع میانگین محاسبه شده است
کلیدواژه‌ها
عنوان مقاله [English]
Properties of 132Xe Neutral Atoms Scattering for 165K and 275K Temperatures
نویسنده [English]
- A Akour
Department of Basic Science, Al-Huson College, Al-Balqa Applied University, Salt, Jordan
چکیده [English]
This work aims to use an important method Galitskii-Migdal-Feynman (GMF) for diatomic molecules 132Xe2, to calculate the effective phase shifts which are then used to compute the effective total and viscosity cross sections at low density and temperature . this study has shown that it’s crucial to include partial waves up to ; for , the effect of the potential becomes negligible .
Comparing with partial waves cross sections we deduce that the cross section is dominated by S-wave scattering for low energy (wave number k < 0.1 Å-1), otherwise D and G partial waves dominate . The highest peak rises from the partial effective D and G-wave resonance, where the system sustains a quasi-bound state trapped by the centrifugal barrier. The average cross section is also determined.
کلیدواژه‌ها [English]
- Effective Total Cross Section
- Effective Phase Shifts
- Effective Viscosity Cross Section
- Galitskii-Migdal-Feynman Formalism
- 132Xe Gas
- RF Bishop, HB Ghassib, and MR Strayer. Low-Energy He-He Interactions with Phenomenological Potentials. Journal of Low Temperature Physics; 26 (1977) 669.
- BR Joudeh, AS Sandouqa, and HB Ghassib. Al-Sugheir MK. 3He-3He and 4He-4He Cross Sections in Matter at Low Temperature. Journal of Low Temperature Physics; 161 (2010) 348.
- IF Al-Maaitah, Total and Viscosity Cross Sections for Krypton Gas at Boiling Point. Applied Physics Research; 11 (2019) 88.
- IF Al-Maaitah, Quantum Second Virial Coefficients for Krypton-86 gas. Applied Physics Research; 10 (2018) 1.
- MC Bordage, SF Biagi, L L Alves, K Bartschat, and S Chowdhury et al. Comparisons of sets of electron–neutral scattering cross sections and swarm parameters in noble gases: III. Krypton and xenon. Journal of Physics D Applies Physics; 46 (2013) 334003.
- M Hayashi, Determination of electron-xenon total excitation cross-sections, from threshold to 100 eV from experimental values of Townsend's α. Journal of Physics D Applies Physics; 16 (1983) 581.
- P S Krstić and DR Schultz, Elastic and related transport cross sections for protons scattering from the noble gases He, Ne, Ar, Kr, and Xe. Physics of Plasmas; 13 (2006) 053501.
- VE Krohn and G R Ringo, Measurement of the Electron-Neutron Interaction by the Asymmetrical Scattering of Thermal Neutrons by Noble Gases. Physical Review Journals Archive; 148 (1966) 1303.
- I Amdu and E A Mason, Scattering of High Velocity Neutral Particles. VII. Xenon—Xenon. The Journal of Chemical Physics; 25 (1956) 624.
- R S Robinson, Energetic binary collisions in rare gas plasmas. Journal of Vacuum Science and Technology; 16 (1979) 185.
- AK Dham, W J Meath, A R Allnatt, R A Aziz and M Slaman, XC and HFD-B Potential Energy Curves for Xe-Xe and Releted Physical Properties. Chemical Physics; 142 (1990) 173.
- G Fekete, Phonon Spectra and Thermodynamic Properties of Rare Gas Solids Based on Empirical and Semi-empirical (ab initio) Two-body Potentials: A Comparative Study. Msc Thesis, Brock University, (2004).
13. JM Standard and PR Certain, Bounds to two‐ and three‐body long‐range interaction coefficients for S‐state atoms. The Journal of Chemical Physics; 83 (1985) 3002.
- M Alexandr and M Anatol, Monte Carlo Simulations of Thermodynamic Properties of Argon, Krypton and Xenon in Liquid and Gas State Using New ab initio Pair Potentials. Molecular Physics; 101 (2003)
- F Michael and J Z Bruno, Computation of the Transport Coefficients of Dense Fluid Neon, Argon, Krypton and Xenon by Molecular Dynamics. Molecular Physics; 73 (1991) 471.
- A V Phelps, Collision Cross Sections for Identical and Non-Identical Rare-Gas Atom Pairs for Energies from 0.01 eV to 10 keV. Boulder, Colorado : University of Colorado and National Institute of Standards and Technology, (2004)
- AM Ratner, Atoms and the Simplest Atomic Crystals. Physics Reports; 269 (1996) 197.
- A Fetter AL and JD Walecka, Quantum Theory of Many-Particle Systems. New York: McGraw-Hill, (1971).
- HB Ghassib, RF Bishop and MR Strayer, A Study of the Galitskii- Feynman T Matrix for Liquid 3 Journal of Low Temperature Physics; 23 (1976) 393.
- M Lee, Interaction in Low-Dimensional Bose-Einstein Condensates, D. The University of Oxford, UK, (2002).
- HT Stoof, M Bijlsma and M Houbiers, Theory of Interacting Quantum Gases. Journal of Research of NIST; 101 (1996) 443.
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