Registration Number
0223U004790,
0121U111693
, R & D reports
Title
The processes of heavy quark, hadron, and new particle production at the LHC and future electron–positron colliders
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Head
Korchin Oleksandr Yu., Доктор фізико-математичних наук
Registration Date
04-12-2023
Organization
National Science Center "Kharkiv Institute of Physics and Technology"
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At the energies of the ILC and CLIC linear colliders, the process of electron - positron annihilation, in which a pair of photons is produced, is investigated.The differential cross section and the polarization observables are calculated for arbitrary polarization of electron and positron beams. Contributions due to the possible existence of an excited electron and a contact interaction are taken into account. A study of deviations of the differential cross section and polarization observables from the predictions of the Standard Model in elementary particle physics is performed. Correlation coefficients depending on the spin states of the electron and positron are found with inclusion of the excited electron mechanism in the case when both beams are polarized. The left-right asymmetry is calculated with the inclusion of the contact e-e-gamma-gamma interaction for the process when one of the beams is polarized. Numerical estimates of the influence of the mechanism associated with the excited electron are given for various values of the beam energy and mass of the excited electron.
Product Description
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Gakh Gennady Ivanovich
Konchatnyi Mykhailo Ivanovych
Merenkov Mykola P.
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2023-12-04
