Research output: Contribution to journal › Article › peer-review
Spectrum of Virtual Photons in the Electroproduction of Negatively Charged Pions on Deuterons. / Gauzshtein, V. V.; Gramolin, A. V.; Zevakov, S. A. et al.
In: Russian Physics Journal, Vol. 60, No. 7, 01.11.2017, p. 1182-1188.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Spectrum of Virtual Photons in the Electroproduction of Negatively Charged Pions on Deuterons
AU - Gauzshtein, V. V.
AU - Gramolin, A. V.
AU - Zevakov, S. A.
AU - Levchuk, M. I.
AU - Loginov, A. Yu
AU - Nikolenko, D. M.
AU - Rachek, I. A.
AU - Sadykov, R. Sh
AU - Toporkov, D. K.
AU - Shestakov, Yu V.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - 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.
AB - 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.
KW - deuteron
KW - photoproduction of π mesons
KW - virtual photon
UR - http://www.scopus.com/inward/record.url?scp=85033371432&partnerID=8YFLogxK
U2 - 10.1007/s11182-017-1193-5
DO - 10.1007/s11182-017-1193-5
M3 - Article
AN - SCOPUS:85033371432
VL - 60
SP - 1182
EP - 1188
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 7
ER -
ID: 9699558