Seiberg-Witten map invariant scatterings

Autor: Duško Latas, Jiangyang You, Josip Trampetic
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Physical review. D
Physical Review
Popis: We investigate Scattering amplitudes of the reversible $\theta$-exact Seiberg-Witten (SW) map based noncommutative (NC) quantum electrodynamics, and show explicitly the SW map invariance for all tree-level NCQED $2\to2$ proceses, including M\"oller, Bhabha, Compton, pair annihilation, pair production and light-by-light $(\gamma\gamma\to\gamma\gamma)$ scatterings. We apply our NCQED results to the $\gamma\gamma\to\gamma\gamma$ and $\gamma\gamma\to\ell^+\ell^-$ exclusive processes, convoluted to the ultraperipheral lead $^{208}$Pb ion-ion collisions, recently measured by the ATLAS collaboration at LHC. We demonstrate that $\gamma\gamma\to\gamma\gamma$ is the more appropriate channel to probe NC scale $\Lambda_{\rm NC}$ while both are less efficient than some other probes.
Comment: 55 pages, 3 tables, 15 figures; v2: added transversed ($\varphi$), and longitudinal ($\vartheta$) distributions of convolouted light-by-light differential cross sections, published version; v3: misprints and typos in the text and equations corrected; numerical, computer generated results are not affected by the above corrections. No change of results and conclusions
Databáze: OpenAIRE