Spectrum of Virtual Photons in the Electroproduction of Negatively Charged Pions on Deuterons

V. V. Gauzshtein, A. V. Gramolin, S. A. Zevakov, M. I. Levchuk, A. Yu Loginov, D. M. Nikolenko, I. A. Rachek, R. Sh Sadykov, D. K. Toporkov, Yu V. Shestakov

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)1182-1188
Number of pages7
JournalRussian Physics Journal
Volume60
Issue number7
DOIs
Publication statusPublished - 1 Nov 2017

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Keywords

  • deuteron
  • photoproduction of π mesons
  • virtual photon

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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