Full O(α) electroweak radiative corrections to $e^{+} e^{-} \rightarrow e^{+} e^{-} \gamma$ at the ILC with GRACE-Loop
Full O(α) electroweak radiative corrections to $e^{+} e^{-} \rightarrow e^{+} e^{-} \gamma$ at the ILC with GRACE-Loop
复制标题
使用 GRACE-Loop 对 ILC 处的【$e^{+} e^{-} ightarrow e^{+} e^{-} gamma$ 进行完整 O(α) 电弱辐射校正
DOI：
10.1016/j.physletb.2014.11.048
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发表时间：
2015
影响因子：
4.4
通讯作者：
Y. Yasui
中科院分区：
文献类型：
--
作者：
P.H. Khiem;Y. Kurihara;J. Fujimoto;T. Ishikawa;T. Kaneko;K. Kato;N. Nakazawa;Y. Shimizu;T. Ueda;J.A.M. Vermaseren;Y. Yasui
通过使用 GRACE-Loop 系统，我们计算了对 e+ e−→ e+ e− γ 过程的完整 O (α) 电弱辐射校正，这对于国际直线对撞机 (ILC) 的未来研究非常重要。使用 GRACE-Loop 系统，通过三个一致性测试对计算进行数值检查：紫外线有限性、红外线有限性和规范参数独立性。当使用四倍精度时，结果显示出良好的数值稳定性。在唯象结果中，我们发现当 s 从 250 GeV 变化到 1 TeV 时，对总截面的电弱校正范围从~− 4% 到~− 21%。修正还显着影响微分横截面，微分横截面是最终状态粒子的能量和角度的函数。这种修正将在ILC的高精度程序中发挥重要作用。
By using the GRACE-Loop system, we calculate the full O (α) electroweak radiative corrections to the process e+ e−→ e+ e− γ, 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.