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首页> 外文期刊>Russian physics journal >Spectrum of Virtual Photons in the Electroproduction of Negatively Charged Pions on Deuterons
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Spectrum of Virtual Photons in the Electroproduction of Negatively Charged Pions on Deuterons

机译：氘核上带负电接头电极的虚拟光子的光谱

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摘要

Numerical and analytical calculations of the virtual photon spectrum have been performed for the electroproduction of negatively charged pions on a deuteron. The numerical calculations of the virtual photon spectrum were performed without recourse to any approximations while a number of approximations were admitted in the derivation of the analytical expression. A comparison of the results of an exact numerical calculation of the virtual photon spectrum with the results of a calculation obtained using an approximate analytical expression for the virtual photon spectrum has been performed for the first time. It is shown that the discrepancy between the virtual photon spectra obtained with the help of numerical and analytical methods can reach 10% in the kinematic region of photoproduction of pions with intermediate energies. It follows from the obtained results that in the statistical modeling of the yields of the reaction of photoproduction of negatively charged pions on a deuteron it is necessary to use the exact virtual photon spectrum obtained with the help of numerical methods whereas in the statistical modeling of the asymmetry of reactions of photoproduction of negatively charged pions on a deuteron it is sufficient to use the approximate analytical expression for the virtual photon spectrum.
机译：已经对氘核上的带负电接头的电切换进行了虚拟光子谱的数值和分析计算。在任何近似的情况下进行虚拟光子谱的数值计算，而在分析表达的推导中允许多种近似。在第一次执行使用使用近似分析表达式获得的计算结果的虚拟光子谱的精确数值计算结果的比较已经执行了用于虚拟光子谱的近似分析表达式。结果表明，在数值和分析方法的帮助下获得的虚拟光子谱之间的差异可以在具有中间能量的光电研制的运动区域中达到10％。从所得结果中遵循，在氘代上光洗脱的光洗脱的反应的统计建模中，必须使用在数值方法的帮助下使用所获得的精确虚拟光子谱，而在统计建模中在氘核上使用带负电带的光洗脱的反应的不对称足以利用虚拟光子谱的近似分析表达式。

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