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URN: urn:nbn:de:swb:90-496567

Full O(alpha) electroweak radiative corrections to e+e-—̄>e+e-gamma at the ILC with GRACE-Loop

Khiem, P.H.; Kurihara, Y.; Fujimoto, J.; Ishikawa, T.; Kaneko, T.; Kato, K.; Nakazawa, N.; Shimizu, Y.; Ueda, T.; Vermaseren, J.A.M.; Yasui, Y.

By using the GRACE-Loop system, we calculate the full O(alpha) electroweak radiative corrections to the process e+e- gamma, which is important for future investigations at the International Linear Collider (ILC). With the GRACE-Loop system, the calculations are checked numerically by three consistency tests: ultraviolet finiteness, infrared finiteness, and gauge-parameter independence. The results show good numerical stability when quadruple precision is used. In the phenomenological results, we find that the electroweak corrections to the total cross section range from ~-4% to ~-21% when s varies from 250 GeV to 1 TeV. The corrections also significantly affect the differential cross sections, which are a function of energies and angles of the final state particles. Such corrections will play an important role in the high-precision program at the ILC.

Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 0370-2693
KITopen ID: 1000049656
Erschienen in Physics Letters B
Band 740
Seiten 192-198
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