Higher-order QED calculation of ultrarelativistic heavy-ion production ofμ+μ−pairs

Autor:	Anthony J. Baltz
Rok vydání:	2009
Předmět:	Physics Nuclear and High Energy Physics Pair production TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY Form factor (quantum field theory) Coulomb Order (ring theory) Production (computer science) Atomic physics Impact parameter Relativistic Heavy Ion Collider Ion
Zdroj:	Physical Review C. 80
ISSN:	1089-490X 0556-2813
DOI:	10.1103/physrevc.80.034901
Popis:	A higher-order QED calculation of the ultraperipheral heavy-ion cross section for {mu}{sup +}{mu}{sup -} pair production at the Relativistic Heavy Ion Collider and the Large Hadron Collider is carried out. The so-called Coulomb corrections lead to an even greater percentage decrease of {mu}{sup +}{mu}{sup -} production from perturbation theory than the corresponding decrease for e{sup +}e{sup -} pair production. Unlike the e{sup +}e{sup -} case, the finite charge distribution of the ions (form factor) and the necessary subtraction of impact parameters with matter overlap are significant effects in calculation an observable ultraperipheral {mu}{sup +}{mu}{sup -} total cross section.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f06dc45072f7951dca0500261b059c33 https://doi.org/10.1103/physrevc.80.034901 Zobrazit plný text záznamu