2born (2born) wrote,
2born
2born

Снова о поправках к формуле Бете-Блоха

Эта музыка будет вечной, несмотря на инициативу Лёки Ахиезера, предложившего когда-то не спорить о том, что находится под знаком логарифма:)) Кстати, никто не знает, почему Блоха в последние годы вымарали из название формулы?

Comparison of the Lindhard-Sorensen and Mott-Bloch corrections to the Bethe stopping formula at moderately relativistic energies: https://arxiv.org/abs/2008.04819
P.B. Kats, K.V. Halenka, O.O. Voskresenskaya
The results of numerical calculating the Lindhard-Sorensen correction in the point nucleus approximation and the total Mott-Bloch correction to the Bethe stopping formula, as well as the difference between the Lindhard-Sorensen and Bloch corrections and the Mott correction, which was obtained by some rigorous and approximate methods, are compared for the ranges of a gamma factor of approximately from 1 to 10 and the ion nuclear charge number Z from 6 to 114. It is shown that the accurate calculation of the Mott-Bloch corrections based on the Mott exact cross section using a method previously proposed by one of the authors gives excellent agreement between its values and the values of the Lindhard-Sorensen corrections in the gamma and Z ranges under consideration. In addition, it is demonstrated that the results of stopping power calculations obtained by the two above-mentioned rigorous methods coincide with each other up to the seventh significant digit and provide the best agreement with experimental data in contrast with the results of some approximate methods, such as the methods of Ahlen, Jackson-McCarthy, etc.
Comments: 14 pages, 3 tables, 4 figures
Tags: Мегаучебник или Что я читал и похвалил, люди, наука, разгребая arXiv'ы
Subscribe
  • Post a new comment

    Error

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

    When you submit the form an invisible reCAPTCHA check will be performed.
    You must follow the Privacy Policy and Google Terms of use.
  • 0 comments