Diphoton plus Z production at the ILC at O(alpha(4))
Diphoton plus Z production at the ILC at O(alpha(4))
复制标题
ILC 的双光子加 Z 生成时间为 O(alpha(4))
DOI：
10.1140/epjc/s10052-014-2739-0
复制
发表时间：
2014
影响因子：
4.4
通讯作者：
Li Xiao-Zhou
中科院分区：
文献类型：
--
作者：
Zhang Yu;Guo Lei;Ma Wen-Gan;Zhang Ren-You;Chen Chong;Li Xiao-Zhou
在国际直线对撞机上，精确测量与双光子相关的α-玻色子的产生对于研究希格斯玻色子和探索新物理具有重要意义。它可以用来研究反常四次规范耦合。在这项工作中，我们报告我们的计算的全部贡献的过程中的标准模型，我们分析了电弱（EW）量子效应的总截面。我们研究了产生率对事件选择方案的依赖性，并给出了一些重要的运动学观测量的分布。结果表明，当碰撞能量从到增大时，次领先级（next-to-leading order，NLO）EW修正能从到定量地增加碰撞总截面，并且NLO EW修正具有明显的非平凡相空间依赖性.我们的结论是，在研究信号过程中，如果我们采取适当的运动削减的最终产品的背景过程可以被抑制显着。
Precision measurement for the production of a-boson in association with two photons is important for investigating the Higgs boson and exploring new physics at the International Linear Collider. It could be used to study theanomalous quartic gauge coupling. In this work we report on our calculation of the fullcontributions to theprocess in the standard model, and we analyze the electroweak (EW) quantum effects on the total cross section. We investigate the dependence of theproduction rate on the event selection scheme and provide distributions for some important kinematic observables. We find that the next-to-leading order (NLO) EW corrections can enhance the total cross section quantitatively fromtowhen the colliding energy goes up fromto, and the NLO EW corrections show obviously a non trivial phase space dependence. We conclude that in studying the signal process, the background processcan be suppressed significantly if we take appropriate kinematic cuts on the final products.