interaction cross section

简明释义

交互酌截面

英英释义

例句

1.The larger the interaction cross section 相互作用截面, the more likely it is that two particles will interact.

越大的interaction cross section 相互作用截面，两个粒子相互作用的可能性就越大。

2.Experimental data is used to refine models of the interaction cross section 相互作用截面 for various particle interactions.

实验数据用于改进各种粒子相互作用的interaction cross section 相互作用截面模型。

3.Researchers often calculate the interaction cross section 相互作用截面 to predict outcomes in high-energy collisions.

研究人员经常计算interaction cross section 相互作用截面，以预测高能碰撞中的结果。

4.The interaction cross section 相互作用截面 can vary significantly depending on the energy of the colliding particles.

根据碰撞粒子的能量，interaction cross section 相互作用截面可能会有显著变化。

5.In particle physics, the interaction cross section 相互作用截面 is a measure of the probability of a specific interaction occurring between particles.

在粒子物理学中，interaction cross section 相互作用截面 是测量粒子之间特定相互作用发生概率的一个指标。

作文

In the field of particle physics, the term interaction cross section refers to a measure of the probability of a specific interaction occurring between particles. Essentially, it quantifies the likelihood that two particles will collide and interact in a particular way. This concept is fundamental for understanding various phenomena in high-energy physics, such as scattering processes and particle collisions in accelerators. The interaction cross section is typically expressed in units of area, often in barns (1 barn = 10^-28 m²), which gives a tangible sense of scale to these interactions.To grasp the significance of the interaction cross section, consider a scenario where a beam of particles is directed towards a target. As these particles travel through the target, they may collide with the atoms within it. The interaction cross section provides insight into how many of these collisions will lead to a specific reaction. For instance, in experiments at large particle colliders like the Large Hadron Collider (LHC), scientists can measure the interaction cross section of different types of particle interactions. This measurement helps in determining the fundamental properties of particles and the forces that govern their behavior.Moreover, the interaction cross section is not a constant value; it can vary depending on several factors, including the energy of the incoming particles and the type of interaction being studied. For example, the cross section for electromagnetic interactions is typically larger than that for weak interactions at low energies. Therefore, as researchers adjust the energy levels in their experiments, they often observe changes in the interaction cross section, which can lead to new discoveries about particle physics.Understanding the interaction cross section also plays a crucial role in astrophysics. When studying cosmic rays, for instance, scientists need to know how frequently these high-energy particles will interact with the Earth’s atmosphere or other celestial bodies. By calculating the interaction cross section for cosmic rays interacting with various materials, researchers can predict the outcomes of such interactions, which is essential for interpreting data from astrophysical observations.In conclusion, the concept of interaction cross section is vital for both theoretical and experimental physics. It serves as a bridge between abstract particle interactions and measurable outcomes in laboratory settings and the universe at large. By enhancing our understanding of the interaction cross section, physicists can continue to explore the fundamental questions about the nature of matter and the universe, paving the way for future advancements in science and technology. The study of the interaction cross section not only enriches our knowledge of particle physics but also has practical applications in various fields, including medical imaging and radiation therapy, where understanding particle interactions is crucial for developing effective techniques.

在粒子物理学领域，术语相互作用截面指的是特定粒子之间发生相互作用的概率的一种量度。它本质上量化了两个粒子碰撞并以特定方式相互作用的可能性。这个概念对于理解高能物理中的各种现象至关重要，例如散射过程和加速器中的粒子碰撞。相互作用截面通常以面积单位表示，通常为巴恩（1巴恩=10^-28 m²），这为这些相互作用提供了一个具体的尺度感。为了理解相互作用截面的重要性，考虑一个情景：一束粒子被指向一个靶子。当这些粒子穿过靶子时，它们可能会与其内部的原子碰撞。相互作用截面提供了洞察力，说明这些碰撞中有多少会导致特定反应。例如，在大型粒子对撞机（如大型强子对撞机LHC）的实验中，科学家可以测量不同类型粒子相互作用的相互作用截面。这一测量有助于确定粒子的基本属性及其行为所遵循的力量。此外，相互作用截面并不是一个常数值；它可能因多种因素而异，包括入射粒子的能量和所研究的相互作用类型。例如，电磁相互作用的截面通常比低能下弱相互作用的截面大。因此，当研究人员调整实验中的能量水平时，他们通常会观察到相互作用截面的变化，这可能会导致关于粒子物理的新发现。理解相互作用截面在天体物理学中也发挥着关键作用。例如，在研究宇宙射线时，科学家需要知道这些高能粒子与地球大气层或其他天体相互作用的频率。通过计算宇宙射线与各种材料相互作用的相互作用截面，研究人员可以预测这种相互作用的结果，这对于解释天体物理观测数据至关重要。总之，相互作用截面的概念对于理论和实验物理学都是至关重要的。它作为抽象粒子相互作用与实验室环境和整个宇宙中可测量结果之间的桥梁。通过增强我们对相互作用截面的理解，物理学家可以继续探索关于物质和宇宙本质的基本问题，为未来科学和技术的进步铺平道路。对相互作用截面的研究不仅丰富了我们对粒子物理学的知识，而且在包括医学成像和放射治疗等多个领域具有实际应用，其中理解粒子相互作用对于开发有效技术至关重要。