5.–10. Mai 2019
MedILS
Europe/Berlin Zeitzone

Creation of Electron-Positron Pairs in Photon-Photon Collisions Driven by 10-PW Laser Pulses

07.05.2019, 14:40
20m
Main Hall (MedILS)

Main Hall

MedILS

Sprecher

Dr. Jinqing Yu (Peking univeristy)

Beschreibung

A novel approach is proposed to demonstrate the two-photon Breit-Wheeler process by using collimated and wide-bandwidth γ-ray pulses driven by 10-PW lasers. Theoretical calculations suggest that more than 3.2×10^8 electron-positron pairs with a divergence angle of 7° can be created per shot, and the signal-to-noise ratio is higher than 10^3. The positron signal, which is roughly 100 times higher than the detection limit, can be measured by using the existing spectrometers. This approach, which could demonstrate the e−e+ pair creation process from two photons, would provide important tests for two-photon physics and other fundamental physical theories.

Working group Secondary radiation generation & applications

Hauptautor

Dr. Jinqing Yu (Peking univeristy)

Präsentationsmaterialien

Es gibt derzeit keine Materialien.