Unparticle effects on Bhabha scattering

In this paper, we investigate the possible unparticle signatures through Bhabha scattering. The numerical results show that the angular distribution with unparticle effects can be up to 42% of the one that is confirmed by Born QED and Born + 1-loop QED calculation and the total cross section with unparticle effects are about 0.04-4.24 pb. This could have important implications for unparticle searches and for the measurement of the cross section of the Bhabha scattering. Key words: theoretical physics, unparticle physics, cross section, Bhabha scattering, total effect. Nous explorons les signatures possibles de particules improbables (unparticle de Georgi) dans la diffusion de Bhabha. Les resultats numeriques montrent que la distribution angulaire avec effets des particules improbables peut etre jusqu'a 42 % de celle obtenue d'un calcul EDQde Born et EDQde Born + 1 boucle, alors que la section efficace totale avec effets des particules improbables est de l'ordre de 0.04 a 4.24 pb. Ceci pourrait avoir des consequences importantes pour la recherche des particules improbables et pour la diffusion de Bhabha. [Traduit par la Redaction] Mots-cles: physique theorique, physique des particules improbables, section efficace, diffusion de Bhabha, effet total.
1. Introduction Bhabha scattering is among the most important and carefully studied processes in particle physics. It provides a very efficient tool for luminosity at electron-positron colliders and thus mediates [...]