2γ and 3γ annihilation as calibration processes for high energy e + e − colliders

Autor:	S. Bakmaev, M. G. Shatnev, Erik Bartoš, E. A. Kuraev, M. Sečanský
Rok vydání:	2008
Předmět:	Nuclear physics Physics Particle physics Photon Annihilation Physics and Astronomy (miscellaneous) Solid-state physics Calibration Radiative transfer Kinematics Differential (mathematics) Lepton
Zdroj:	JETP Letters. 87:73-77
ISSN:	1090-6487 0021-3640
DOI:	10.1134/s0021364008020021
Popis:	Born differential cross sections and the lowest-order radiative correction to them are obtained in the kinematics of large-angle final photon emissions in high-energy electron-positron annihilation processes. Taking into account the possible emission of real soft and hard photons in collinear kinematics, we show the validity of the Drell-Yan form of the differential cross section with the nonsinglet structure functions of the initial leptons. The leading and next-to-leading contribution to the cross sections is obtained. The relevant numerical estimations are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f5e8d7d2b8121bf8539c23987b904962 https://doi.org/10.1134/s0021364008020021 Zobrazit plný text záznamu Plný text ve formátu PDF