baryon 中文意思是什麼
baryon
解釋
n. 名詞 【核物理學】重子。-
The statement that for every baryon that disappears another baryon appears is incomplete because it leaves antibaryons out of the reckoning.
有一個重子消失就有另一個重子出現的說法是不夠完善的，因為它沒有把反重子算進去。 -
The information on baryon transporter stopping ) may be accessed by the measure - merit of antiproton to proton ratio yield
反質子質子產額比被認為是實驗上反映重於數阻止和穿透的很好的物理量。 -
Then the dependences of the cross section on the center - of - mass energy of xcj and baryon are given in the work
離解的截面，給出了截面對x 。和重子的質心系能量的依賴關系。 -
Baryon number transport and stopping provide entirely different initial condition for the probably produced qgp
中心快度區的重於數阻止和重子數穿透的倩況為可能產生的qgp提供了完全不同的初始條件。 -
For the bnl / ags fixed target experiments, baryon - rich region had been created but no direct evidences for qgp formation were found
對gs堆nl能區的同定靶實驗，末態具有豐重子數特性，但還沒有qgp形成的直接證據。 -
At finite baryon densities, the underlying theory of strong interaction, qcd, is not solvable in the nonperturbative low - energy regime
而對于有限重子密度，強相互作用的基本理論量子色動力學（ qcd ）在低能區是不可解的。 -
The following phenomenon is desired to seen : with the increase of colliding energy, the net baryon number tends to be zero in the mid - rapidity region
人們渴望在高能重離子碰撞中看到：隨著對撞能量的升高，在反應的中心快度區出現凈重於為零的現象。 -
The experimental results become close to entire baryon number transport step by step, from the entire baryon number stopping at low - energy to baryon transport with energy increasing
實驗上，從低能時中心快度區的完全重子數阻止，到能量逐步升高時，開始出現重子穿過。 -
The results show that the chiral symmetry is restored partially when the strange matter density increases and 2 plays a very important role in the strange matter which may approach the constituents of the neutron stars. in additions, we can find that the strange matter density where the - condensate emerges is led to the ratio of the nucleon number to baryon number. and the occurrence of - condensate is only in certain density and gradually increases for higher density, so we guess that - field may be necessary to carefully consider for studying the neutron stars
（ 3 ） -凝聚出現時所對應的奇異物質密度值與核子在奇異物質中的比例有關。另外，雖然本文對夸克凝聚的討論是在低密度的奇異物質中進行的，但是-凝聚的出現卻需達到一定的密度值並且隨密度的增大而遞增，所以我們推測場可能對于仔細研究中子星是一必要因素。 -
There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry. now, we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter, where q is an up or down quark field. on the one hand, from the experimetal data, it is found that < qq > vac = - ( 225 25mev ) 3, on the other hand, with the hellmann - feynman theorem, quark condensate can be evaluated on the hadronic level. in this paper, we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change. it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter. because nertron stars are homogeneous and at very low temperature, we will use the mean - field approximation and zero temperature throughout this paper
鑒于已有大量文獻討論了核物質中的夸克凝聚，本文將討論在奇異物質中的夸克凝聚。而在介質中的夸克凝聚的基本公式可由hellmann - feynman理論導出，所以運用手征對稱自發破缺拉氏量以及平均場近似，我們就可以討論在奇異物質中的夸克凝聚，由所計算的結果表明： （ 1 ）奇異物質中的夸克凝聚隨奇異物質密度的增大而單調減小。 （ 2 ） -凝聚的出現對衰減率有影響。 -
The results show that - condensate appears at some baryon densities and makes great effect to the curve of state equation of neutron star ; hyperons - and a exist in neutron star matter at high desities
結果表明， ~ -凝聚將出現在一定的重子密度區間，並對中子星狀態方程曲線有重要的影響；超子~ -和在較高密度也會出現。 -
The investigation of excited baryons is very important in understanding the internal structure of baryon and the strong interaction in the nonperturbative quantum chromodynamics ( npqcd ) regime. however, there was not much progress on the baryon spectroscopy data since the late 1970 ' s
核子激發態的研究對我們認識物質微觀結構和強相互作用性質有重要意義，目前重子譜的研究對人類認識物質微觀結構起著非常的作用。 -
This thesis is organized in two parts : the first part of this thesis focuses on strangeness production at sps energies. the strange baryon and strange meson pro - duction at sps energies are modeled via luciae model which includes the reseat ter - ing
我們的工作目標主要集中在用建立在強子和弦機制上的高能核反應模型- luciae ，模擬wa97和na49實驗中的奇異重子和奇異介子產生的數據。 -
In this paper, we take a way which realizes this constraint by a nonlinear method and generalize the chiral effictive model to su ( 3 ) including the baryon octet. by this means, we obtain the chiral symmetry spontaneous breaking lagrange density which depicts the strong interactions
本文採用對這一條件進行非線性實現的方法將手征自發破缺的等效模型推廣到su （ 3 ）模型，即重子八重態，得出描寫強相互作用的手征自發破缺的lagrange密度。 -
Further works are clearly needed to develop the model to reach a better understanding of the heavy meson properties, and to extend investigation of baryon properties
進一步的工作需要考慮模型本身的完善來達到對重介子性質的更好理解，並將這個勢擴展到對重子性質的研究 -
It is believed that eventually ve will reach sufficient temperature or baryon density to produce a new state of matter - quark gluon plasma ( qgp ). the study of the pha. se transition from ordinary hadronic matter to qgp. and to further investigate the properties of qgp has been the major effects of these experiments at sps / cern
由於夸克膠子等離子體只在極短時間內存在，加上復雜的普通核物質存在效應的影響，同時而準確地測定qgp存在的各種信號，已成為目前和將來高能重離子實驗的研究方向。 -
Particle ratios embody the chemical equilibrium driven by inelastic interaction during rapid expansion when the temperature decreases in the colliding system, the measured hadron ratios provide the chemical composition of the fireball at the chemical freeze - out point and access the baryon transporter stopping ) for the initial conditions at early stage of the collisions. in this paper, we study the anti - proton to proton ratio from ig7au + 197 au collisions, analyzing p / p ratio as functions of rapidity, transverse momentum and centrality at ^ / saw = 200gev and the dependence on the center of mass energy of p / p ratio, compared with the experimental results. it shows that the p / p ratio has n ' t obvious dependence on rapidity for mid - rapidity, but shows a slight increase trend with pt increasing in the range of pt < 1gev / c for mini - bias or central collisions, and rqmd shows a more remarkable correlation between p / p ratio and centrality than experiments do at snn = 200gev
研究表明：對廠在中心快度區沒有明顯的快度依賴性，在越靠近邊緣快度區， p p呈下降趨勢；在對心碰撞或者最小無偏事件中， p p在低橫動量區域隨著橫動量的升高而增大； p隨著碰撞對心度的比實驗結果表現出稍強的隨對心度增大而減小的趨勢，尤其是有再散射ujrqmd模型；在中心快度區， p p隨著碰撞的質心能量的提高而快速的增大，與實驗結果一致；在低能，有末態粒子再散射的d較好的預言了的：但是在mc能量下，有末態粒子在散射的d所預言的p p值比實驗值要小。 -
The second aspect : from qgp kinetic equations with collision integrals, by using the relaxation time approximation, we calculate the distribution functions to the second order correction. we obtain the distribution functions for quarks ( and anti - quarks ) and gluons under perturbation of the fluctuation of the color field. then in the high - temperature - low - density area, we discuss the characteristics of the distribution functions, and use t hem to get the net baryon density and the energy density
第二，從有碰撞項的qgp動力論方程出發，忽略自旋，在色漲落擾動下，利用弛豫時間近似，得到夸克和膠子分佈函數的二級修正，通過數值分析重點討論了高溫低密情況下qgp中成分粒子分佈函數的特性，並且由分佈函數得到凈重子數密度和能量密度。 -
The interacting potential among quarks includes the contributions of coulomb - like, confinement and loop - originating correction. the wave functions describing meson and baryon are composed of orbital, color, spin and flavor
Illler tye勢描述夸克之間的相互作用，它包含類庫侖作用、囚禁作用和源於圈圖修正的貢獻。
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