Speaker
Anna Andreeva
(Lomonosov Moscow State University Branch in Sarov)
Description
The research investigates rare processes in photon-photon collisions (light-by-light scattering and the production of hypothetical scalar and pseudoscalar (ALP) particles) using photon beams of the future project of the NCPhM Compton source, based on the inverse Compton effect: the photon beam generated by the Compton source collides with a photon beam from a laser.
- A previously unknown formula for the cross section of photon-photon scattering in the $\omega^* << m_e$ approximation in an arbitrary reference frame, the angular distribution, and the number of events (the yield of gamma quanta) in the process of light-by-light scattering using photon beams of the future NCPhM Compton source project have been obtained;
- Constraints on the parameter region (mass and coupling constant) for which the production cross section of scalar and pseudoscalar (ALP) particles dominates over the light-by-light scattering cross-section have been obtained.
Author
Anna Andreeva
(Lomonosov Moscow State University Branch in Sarov)
Co-author
Eduard Boos
(SINP MSU)
