H - hadron 中文

hadron n.【物理學】強子。adj.-ic

hadst
It takes advantages of modern computer to fit all the experimental information , hence a very powerful pwa method . in this thesis , we use this method to analysis hadrons japdecay model jap - > ( ptt - tr + and j p radioactive decay model based on the pwa amplitude , we received mass distribution of two outgoing pious and angle distribution of the outgoing particles using the cern program . finally we compared tow different form factors ( barrier factors and gauss factor ) wh ich were always used the calculating of pwa amplitude 本文采用這種分析方法給出的j強衰變j ~ - ~ +和j粒子輻射衰變j ~ - ~ +分波振幅公式，利用cern的蒙特卡羅模擬程序繪出了末態粒子的角分布和不變質量分布，對分波分析中常用的兩種動力學形狀因子(中心位壘因子和高斯壓低因子)進行了研究比較。
The lund string dynamical model frifiof , luciae model and jpciae model were introduced in the third chapter . luciae model is based on frifiof model , while jpciae model is based on pyth1a . paciae model , a new model based on parton and hadron cascade is being improved and its physical ideas is introduced 論文的第三章主要介紹了建立在lund弦模型基礎上的強子和d玄級聯的fritiof模型、 luciae模型和jpciae模型，其中luciae模型是建立在frjtiof棋型的基礎上，而jpciae模型是建立在pythia的基礎之上的。
In quantum chromodynamics ( qcd ) , vacuum is not trivial , that is , vacuum carry quantum numbers . such a behavior is embodied by non - perturbative con - densates of quarks and gluons . since hadrons are excitations with respect to the vacuum , hadronic properties are ultimately related to properties of the vacuum . based on the vacuum structure , some hadron properties have been described well . in the low energy region , qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement , which are closely related to the vacuum characteristics of qcd . much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics , and the quark condensates give an expression to chiral symmetry spontaneous breaking . according to goldstone ' s theorem , the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken . there are two ways : inear and non - linear methods to carry out this constraint . in our paper , we will use the non - linear method 大量實驗和理論研究表明，手征對稱自發破缺對于理解低能強相互作用十分重要，而夸克凝聚又是導致手征對稱自發破缺的因素。按goldstone理論，伴隨手征對稱自發破缺應該會有零質量的goldstonebosons產生。而對于這一條件的實現有線性和非線性兩種方法本文將用非線性的方法將手征對稱自發破缺應用于su ( 3 )模型即重子八重態，得出描述其強相互作用的手征對稱自發破缺lagrange密度。
The reflector can increase the neutron flux obviously and the main processes of the neutron yield in reflector are spallation reaction induced by energetic hadrons and ( n , 2n ) reaction . when the moderator height is equal to the distance between the upper part and the lower part of the split target , the total neutron flux of the split target will be higher by 20 . 1 % than that of the integral one . secondly , the high - energy neutron escaping from the target will enter into the moderator and be slowed down 得到經水慢化器慢化后，中子通量在慢化器厚度與高度方向上的分布；比較了水與液態氫的慢化能力以及中子在水、液態氫、液態甲烷這三種慢化器慢化后的能譜；在csns的靶站設計中，引出慢中子的導管不完全位于慢化器中子引出面的法線方向上，因此進一步計算了中子通量角分布。
The knowledge of these initial collision is crucial for any theoretical treat - ment of a possible parton - hadron phase transition , the detection of which being the ultimate aim of all the efforts of co1liding heavy ions at very high energies . the parton model allows to calculate inclusive cross sections as a convolution of any elementary cross section with parton distribution functions , assuming that factorization works . the disadvantage is that tlle first interaction is coilsidered quite differently from the subsequent ones in case of multiple scattering 其它的弦模型在計算幾率時，忽略了入射能量在pomeron之間的分配，破壞了能量守恒，而且把pomeron作為全同粒子處理，即pomeron之間是不可區分的；然而在處理粒子產生時，這些模型雖然考慮了能量守恒，但是第一個pomeron的粒子產生與其它的pomeron很不一樣? ? pomeron在粒子產生時不是全同的。
Therefore j / v is the border guard of perturbative quark and gluon and non - perturbative hadron . j / v production can be divided into two phases : cc pairs are produced from initial short - range parton scattering in nucleus - nucleus collision , then the produced cc pairs proceed to evolving into physical bound state 基于對強子?強子碰撞中j產生的研究，目前人們認為j的產生可分成兩個階段：入射強子和靶強子先通過部分子過程產生cc對，然后cc對再演化為物理的j束縛態。
Therefore it is necessary to study the contribution of hadron environment to the suppression . many works have studied j / suppression in hadron environment with glauber model . but the combination of nucleus absorption and comover mechanism in hadron environment can not explain the abnormal suppression of j / production in pb - pb collision yet 但是強子環境中的核吸收和同行粒子對j w的相互作用機制結合起來仍不能解釋pbpb碰撞過程中j w的反常壓低，也就是說需要引入新的機制，這可能預示著夸克一膠子等離子體的形成。
Even if qgp is formed , it can just exist for a very short period of time and then decays into final state hadrons at the end of the expansion and the cooling of the system . the initial state information may be damaged by the final state interactions during the evolution process 在相對論性核?核碰撞中，即使qgp已形成了，也只是在碰撞過程的極短瞬間存在，隨著系統的膨脹與冷卻，它很快就演化為實驗觀測到的各種末態粒子，最初存在的信息也可能在演化過程中由于各種末態相互作用而變得不清晰了。
The new mechanics was called by santilli hadronic mechanics to characterize the description of strongly interacting particles , such as the nuclear constituents , collectively called hadrons , under conventional long - range potential , as well as short - range , nonlinear , non - local and non - potential interactions 桑蒂利將這種新型的力學稱之為強子力學以描述強烈相互作用粒子的特征，象核的要素那樣，將處于傳統較長距離范圍潛勢狀態，以及處于處于很短距離范圍、非線性、非局部和非潛勢相互作用狀態的粒子統稱為強子。
At the same time , this paper annaylses the particle - detector interaction and the detector response . the behaviors of electrons , photons and hadrons in eemc are studied and they are also compared with the rusults in barrel electromagnetic calorimeter ( bemc ) . also , the calculation and realization method of standard electromagnetic interaction is compared with the low electromagnetic interaction 同時,分析粒子與探測器相互作用及探測器的響應處理,分析電子、光子和強子在端蓋量能器的行為,與桶部量能器的模擬結果進行對比研究,并對低能電磁相互作用和標準電磁住作用的計算方法和實現方法進行了比較。
The hard process is included in a natural way , which offers the opportunity to calculate the parton spectra and parton density which aie closely related to the forinatioi1 of quark gluon plasma . the strict calculation is performed on the parton level , however , hadrons are finally observable particles 而pomeron與remnant之間的關聯，以及pomeron之間的關聯，則通過補償夸克(或感應夸克)來實現? ?每當一個海夸克或一個反夸克從真空中激發出來作為pomeron的色弦端點時，它的反粒子也從真空中激發出來，進入到相鄰的remnant中。
The simplest form of the parton and hadron cascade model , paciae1 . 0 , is employed to investigate the charge fluctuation of quark matter and the pauli blocking at the partonic stage of ultra - relativistic nucleus - nucleus collisions and its effect on the hadronic final state 完整部分子和強于級聯模型， paciae還在進一步的完善之中，我們對其物理思想作了較為詳細的介紹，簡單的部分子模型paciaei刀己用來研究電荷漲落和pauli阻塞等問題。當s jeon 、 v
When two protons collide at high energy , some of their quarks and gluons can meet nearly head - on and rebound , resulting in narrow , back - to - back sprays of hadrons ( called jets ) blasting out in opposite directions [ see box on next page ] 當兩個質子以高能對撞時，其中某些夸克和膠子會以幾近正面的角度沖撞并且回彈，產生一對分布狹窄、背對背的強子噴霧（稱為噴流），朝相反方向噴發而出（參見37頁高密度液體的證據）。
Whereas , as a crucial input in the color dipole approach , the color dipole cross section is largely unknown in theory , it is necessary for us to compare different hadron - hadron dilepton production processes to test the appalicablity of this approach 然而，由于色偶極模型中色偶極截面不能從理論上嚴格確定，我們必須對不同強子?強子碰撞輕子對產生過程進行比較，才能檢驗色偶極模型描述drell - yan過程的適用性。
Is not only a parameter for measuring expansion of the universe , it can also be used to determine the age and the size of the universe , amount of dark matters , numbers of hadrons and abundance of light elements in the universe and even the structure of the early universe , and so forth 的一個參數，而且還可以用來計算宇宙年宇宙大小宇宙中黑暗物質的數量重子數目輕元素豐度甚至早期宇宙形成的結構等等。
Since quantum chromodynamics ( qcd ) is nonperturbative in the infrared region as the basic theory of strong interaction , the potential model as one of various models inspired by qcd has been developed to explain the properties of hadron 目前，由于作為強相互作用基本理論的量子色動力學( qcd )在低能區(大距離)的非微擾效應，各種qcd激發的模型一直被發展來解釋強子的性質。
One of the major goal of phos is to detect and identify direct photons , represent only about 5 to 20 % of the total photon yield . the photon background mainly comes from 0 and decays and misidentified hadrons Alice的光子譜儀phos ( photonspectrometer )用于研究高能光子， phos的作用是：一，區分光子和其他粒子；二，區分直接光子和中性介子衰變產生的光子。
It is known that the meson is the lightest hadron and hence plays a significant role in the phenomenology of low - to - intermediate - energy nuclear physics as mediator of the long - range part of hadron - hadron interactions 眾所周知，介子這種最輕的強子作為強子-強子相互作用的長程部分的中介，在低中能核物理的研究中扮演了一個很重要的角色。
The speakers leaned heavily toward the theory side of the aisle , but an experimental device figured prominently in several talks : the large hadron collider ( lhc ) at cern , the european center for particle physics near geneva 演講者多著重于理論面，不過有具實驗儀器，卻在許多演講中?了舉足輕重的地位，那就是大強子對撞機（ lhc ）。

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hadron

hadron n.【物理學】強子。adj.-ic

hadst