partial cross section

简明释义

部分截面

英英释义

例句

1.The physicist calculated the partial cross section for the specific interaction between the particles.

物理学家计算了特定粒子之间相互作用的部分截面。

2.The results showed a significant increase in the partial cross section for the reaction under study.

结果显示研究中的反应的部分截面显著增加。

3.The partial cross section can be measured using various experimental techniques.

可以通过多种实验技术测量部分截面。

4.Researchers often refer to the partial cross section when discussing scattering processes.

研究人员在讨论散射过程时常常提到部分截面。

5.In high-energy experiments, the partial cross section helps to identify different reaction channels.

在高能实验中，部分截面有助于识别不同的反应通道。

作文

In the field of particle physics, the term partial cross section refers to a specific measurement that quantifies the likelihood of a particular interaction occurring between particles. This concept is crucial for understanding the fundamental processes that govern particle collisions and reactions. The partial cross section is typically associated with a specific final state of the particles involved in an interaction, allowing physicists to isolate and analyze individual processes within a more complex event. To illustrate this concept, consider a high-energy collision experiment where protons are accelerated and smashed together. During these collisions, various interactions can occur, such as the production of new particles or the scattering of existing ones. Each of these interactions can be analyzed separately, and the partial cross section provides a way to quantify how likely each of these outcomes is based on the conditions of the experiment.For example, if researchers are particularly interested in the production of a specific particle, they will measure the partial cross section for that process. This measurement helps scientists understand not only the frequency of that particular interaction but also its characteristics, such as energy dependence and angular distribution. By accumulating data on various partial cross sections, physicists can build a comprehensive picture of the underlying physics at play.Moreover, the concept of partial cross section extends beyond particle physics into other fields such as nuclear physics and astrophysics. In nuclear reactions, for instance, different channels may lead to various nuclear products, each with its own partial cross section. Understanding these channels is essential for applications ranging from nuclear energy production to medical imaging techniques that utilize radioactive isotopes.In astrophysics, the partial cross section plays a critical role in understanding stellar processes and the synthesis of elements in stars. For instance, when studying how stars produce energy through nuclear fusion, scientists must consider the partial cross sections of various fusion reactions. These measurements directly impact our understanding of stellar lifecycles and the formation of elements in the universe.Furthermore, the importance of partial cross sections is not limited to theoretical implications; they also have practical applications. In the development of new technologies, such as particle detectors and accelerators, accurate knowledge of partial cross sections is essential for optimizing performance and ensuring safety. Engineers and scientists rely on these measurements to design experiments that push the boundaries of our understanding of the universe.In conclusion, the term partial cross section encapsulates a vital aspect of particle interactions and reactions. By measuring the likelihood of specific outcomes in high-energy collisions, researchers can gain insights into the fundamental forces and particles that constitute our universe. With applications spanning various scientific disciplines, the partial cross section remains a cornerstone of modern physics and continues to drive advancements in both theoretical and applied research.

在粒子物理学领域，术语部分截面指的是一种特定的测量，量化了粒子间特定相互作用发生的可能性。这个概念对于理解控制粒子碰撞和反应的基本过程至关重要。部分截面通常与相互作用中涉及的粒子的特定最终状态相关联，使物理学家能够隔离并分析复杂事件中的个别过程。为了说明这一概念，考虑一个高能碰撞实验，其中质子被加速并相互撞击。在这些碰撞过程中，可以发生各种相互作用，例如新粒子的产生或现有粒子的散射。每一种相互作用都可以单独进行分析，而部分截面提供了一种量化每个结果发生的可能性的方法，基于实验条件。例如，如果研究人员特别关注某个特定粒子的产生，他们将测量该过程的部分截面。这一测量帮助科学家理解不仅是该特定相互作用的频率，还有其特征，例如能量依赖性和角分布。通过积累关于各种部分截面的数据，物理学家可以建立出潜在物理现象的全面图景。此外，部分截面的概念不仅限于粒子物理学，还扩展到核物理学和天体物理学等其他领域。在核反应中，不同的通道可能导致各种核产物，每个产物都有其自己的部分截面。理解这些通道对于从核能生产到利用放射性同位素的医学成像技术等应用至关重要。在天体物理学中，部分截面在理解恒星过程和元素合成方面发挥着关键作用。例如，在研究恒星如何通过核聚变产生能量时，科学家必须考虑各种聚变反应的部分截面。这些测量直接影响我们对恒星生命周期和宇宙中元素形成的理解。此外，部分截面的重要性不仅限于理论意义；它们还有实际应用。在新技术的发展中，如粒子探测器和加速器，准确了解部分截面对于优化性能和确保安全至关重要。工程师和科学家依赖这些测量来设计推动我们理解宇宙边界的实验。总之，术语部分截面概括了粒子相互作用和反应的一个重要方面。通过测量高能碰撞中特定结果的可能性，研究人员可以深入了解构成我们宇宙的基本力量和粒子。随着应用跨越多个科学学科，部分截面仍然是现代物理学的基石，并继续推动理论和应用研究的进步。