碰撞截面 的英文怎麼說

中文拼音 [pèngzhuàngjiémiàn]
碰撞截面 英文
collision cro section
  • 碰 : 動詞1 （一物體突然接觸另一物體; 撞擊） touch; bump 2 （碰見; 遇到） meet; run into 3 （試探 ） tr...
  • 撞 : 動詞1 （猛然碰上） collide; strike; knock; bump against; run into 2 （碰見） bump into; run into;...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 碰撞 : 1 （猛然碰上） collide; run into; knock against; run foul of; crash 2 [物理學] collision; impact;...
  1. The behavior of collision is usually expressed in terms of a cross section.

    碰撞的行為通常用截面來描述。
  2. For probing the isospin dependence of the medium correction of two - body cross sections, the results show that the behavior of the excitation function of stopping for medium size nuclear collisions can provide cleare r information than that for heavier systems

    我們的結果還表明測量中等大小質量的系統在中能重離子碰撞中的核阻止本領激發函數比測量重的系統能提供更為確切的有關兩體截面介質修正的信息。
  3. Al. first applies the color - dipole approach to drell - yan process, which says that in the target rest frame the drell - yan process can be viewed as bremsstrahlung. rather than parton annihilation. according to factorization theorem, the drell - yan cross section can be expressed in terms of the same dipole cross section that appears in deep inelastic scattering

    雖然高能反應的微分截面是洛侖茲不變的，但其部分子解釋卻是與坐標系有關的，最近， b . z . kopeliovich等提出靶靜止系中drell - yan過程的色偶極模型，他們認為，在靶靜止系高能碰撞的drell - yan過程是一韌致輻射過程而不是正反夸克對的湮滅。
  4. By analyzing the differentiae of the total cross sections ( tcs ), the differential cross sections ( dcs ), the partial wave cross sections ( pcs ), the change patterns of the cross sections and the influence on the cross sections because of the var iations in the mass of systems and the relative kinetic energy of incoming atoms for symmetric isotopically substituted systems he, ne, ar, kr, xe - h2, d2, t2 have been obtained. in this paper, we use the tang - toennies potential model for the inertia gas atoms - h2 systems, the murrell - sorbie potential surface with five parameters for the molecules h2, d2, t2. for the inertia gas atoms - d2, t2 systems, we use the same potential surface with the inertia gas atoms - h2 systems

    通過分析he 、 ne 、 ar 、 kr 、 xe ? h _ 2 、 d _ 2 、 t _ 2各碰撞體系在總截面、微分截面和分波截面等方面的差異，總結出在h _ 2分子的對稱同位素替代情形下惰性氣體原子與h _ 2分子體系碰撞截面的變化規律；通過比較he 、 ne 、 ar 、 kr 、 xe ? h _ 2 、 d _ 2 、 t _ 2各體系在碰撞總截面、微分截面、分波截面等方面的不同，詳細討論了同位素替代碰撞體系中體系約化質量及入射原子的相對碰撞能量的變化對碰撞截面的影響，得出了這種影響的規律性。
  5. Due to the repulsive coulomb field, the effective impact parameter increases, and therefore the calculated reaction cross section decreases

    庫侖場的排斥效應使得核?核反應有效的碰撞參數增大，使計算的反應截面減小，同時這種修正的效應隨能量增大而減小。
  6. Scattering sections reflect some characters of interaction potential in collision systems ; therefore one can get information about interaction from the theoretical and experimental research of collision between atoms and molecules. it is especially noted that non - elastic scattering sections and single rotational - excitation sections give abundant information about orientation and repulsive potential of interaction between atom and molecules, which meant an important way as to fully investigating the interaction between atoms and molecules

    散射截面反映了碰撞體系相互作用勢的基本特性，從原子分子碰撞的理論及實驗中能夠獲得有關相互作用的信息；非彈性散射截面和單個轉動激發截面提供了有關原子與分子相互作用方向性和排斥勢的豐富信息，是全面探索原子與分子相互作用的重要途徑之一。
  7. The result shows that argon gas can not only promote the excitation of plasma at low pressure, but also improve discharge state, increase the density and activation of reaction radical and improve the quality of diamond films. on the other side, argon can cool the plasma and maintain low temperature of substrate due to its big ionization section and high collision probability with gas molecules

    結果表明，氣體系統中引入氬氣一方面不僅有利於維持低壓放電，而且改善放電狀態，提高反應活性基濃度和活性，提高低溫沉積金剛石膜的質量；另一方面，由於其大的電離截面使其和電子碰撞的幾率大大提高，對等離子體進行冷卻，有利於基片溫度的降低。
  8. Study of interaction potential and differential scattering cross section for he - n

    2碰撞體系相互作用勢及微分散射截面的研究
  9. The interactions between atoms and molecules undertake a very important role in many physical processes and the investigation of rotation excitation cross sections of in the collisions of molecules with atons are an excellent method determining their interactions. many theoretical and experimental researcher have done a lot of reseach work hi this field and got plenty of theoretical and experimental data

    原子分子碰撞過程中轉動激發截面的研究是確定原子與分子間相互作用勢的理想方法，許多理論和實驗工作者在這方面做了大量的工作，並取得了很多理論和實驗數據。
  10. Calculation of scattering cross section of the electron and the second period element atom

    低能電子與第二周期元素原子碰撞截面的理論計算
  11. And based on these findings, we further study the dependence of nuclear stopping on system size, initial n / z, sp and the medium correction of two - body cross sections. it ' s found that the effect of initial n / z ratio and isospin sp on stopping is weak, and the excitation function of stopping depends on the form of medium correction of two - body cross sections and the equation of state of nuclear matter strongly

    在此基礎上我們研究了核阻止本領對系統大小、初始核n / z 、平均場中對稱勢以及兩體散射截面介質修正等的依賴情況，研究結果表明它受初始核n / z比以及對稱勢的影響很弱，而受碰撞截面介質修正的同位旋依賴效應及核態方程影響明顯。
  12. The calculation results show that the correlation between the multiplicity of intermediate mass fragments n ( subscript imf ) and total number of charged particles n ( subscript c ) is a sensitive observable for probing the isospin - dependent in - medium nucleon - nucleon cross section, but the isospin effects of symmetric potential on n ( subscript imf ) is not obvious in the chosen energy region

    計算結果表明在所選能區，中等質量碎片的多重性與帶電粒子總數之間的關聯是提取介質中核子核子碰撞截面的靈敏觀測量，而此時對稱勢的同位旋效應卻不明顯。
  13. The transverse expansion origins in early stages, but mainly develops and finishes during the late stage of the colliding. for those heavier particles, such as j /, e, and etc., becuase of their smaller hadronic cross section, they rarely participate the final state hadronic re - scattering, and depart the system much earlier. their transverse expansion maybe is the result of the cumulative collective effect during the early partonic stage

    這種橫向擴張起源於碰撞的初始階段，但是主要是在碰撞的後期完成，而一些重的粒子，如j 、和，由於具有較小的強子散射截面，幾乎不參與末態強子的再散射，較早的離開碰撞系統，它們所表現出來的橫向擴張運動可能是來自碰撞初期部分子階段的部分子的集體效應的累積結果。
  14. The basic blocks in the color dipole method are the lc wavefunction and the dipole cross section. the lc wavefunction is calculated from perturbation theory. we have shown that the lc wavefunction for the y ' q configuration plays the role of a weight for the different transverse separation p contribution to the process

    ~ * q光錐（ lc ）波函數在- p碰撞過程中起了權重的作用：無論是橫向極化光子還是縱向極化光子，由於lc波函數的作用，在~ * q橫向距離p很小時對截面貢獻是主要的。
  15. This work gives amsotropy surfaces of three collision systems he - hf, he - hcl, he - hbr. comparing theoretical results with experimental ones has carried out the discussion on feasibility of adapted potential model. all differential cross sections ( dcs ), partial wave cross sections ( pcs ) and total scattering cross sections ( tcs ) have been achieved by using close - coupling approximation method to calculate the three systems, and results above have also been discussed and analyzed

    首先，具體介紹了理論計算方法? ?密耦近似方法，接著討論了各種勢能模型的優缺點，利用孫桂華改進的勢能模型? ? ms勢，分別給出了he - hf 、 he - hcl 、 he - hbr三個碰撞體系的各向異性勢能面，並結合計算結果與實驗結果的比較，對所採用的勢能模型的可行性展開了討論；用密耦近似方法對he - hf 、 he - hcl和he - hbr三個碰撞體系進行計算，得出了各種微分散射截面、分波截面和總散射截面，並將計算結果進行討論和分析。
  16. In p - a drell - yan process, the incident quark will experience multiple collisions with different nucleons in the nucleus, which leads to the suppressed drell - yan cross section, in another words, the nuclear shadowing effect

    在靶靜止系，對于p - a碰撞的drell - yan過程，入射夸克要與原子核中的不同核子發生多次碰撞，使得總的微分截面被壓低，這就是遮蔽效應。
  17. In this paper, the color dipole approach in the target rest frame is presented and the ratio of the drell - yan cross section per nucleon for an 800 gev proton beam incident on a variety of nuclear targets are calculated and the results are compared with fermilab e772 and e866 experimental data. it is shown that without considering the energy loss effect, the calculated results can fit rather well with experimental data

    本文介紹了靶靜止系中色偶極模型，用色偶極模型計算了800gev質子與原子核碰撞的drell - yan過程的微分截面比，並與e772和e866實驗結果進行了比較。發現：不考慮能量損失，只計及p - a碰撞中的遮蔽效應，理論結果就與實驗符合的很好。
  18. The integral, differential, partial wave cross sections and reaction probabilities are calculated for the three collision systems

    計算中採用了lsth 、 bkmp和pk三種勢能面，計算了三個碰撞體系的積分截面、微分截面、分波截面和反應幾率。
  19. An experimental study on single - electron detachment cross sections of ag - colliding with he

    原子碰撞的單電子脫附截面的實驗研究
  20. Improvement of barrier protection performance was analyzed from views of material, structure and type, installation of concrete barrier. it was presented to increase the protection capacity of the barrier through material improvement so as to decrease rigidity of the barrier. the effect that the height of the point of intersection between the up and below inclined plane may have on car overturn after impact

    從混凝土護欄的材料、結構形式、施工方法等方面進行了護欄防護性改進分析，提出通過改進材料來提高護欄的防護性，降低護欄的剛度，討論了護欄截面上、下斜面交叉點的高度對車輛碰撞后傾翻可能性的影響。
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