A novel probe of new physics in e+e-→ Zγ

• 作 者: Veronica Sanz
• 机 构: Department of Physics and Astronomy,University of Sussex,Brighton BN1 9QH,UK;Instituto de Fisica Cor
• 出 处: 中国科学：物理学 力学 天文学（英文版）
• 发表日期: 2021年2期

One could compare the discovery of a new particle to a big shining firework,lighting up the night sky.But sometimes discoveries can be subtle,less flamboyant,and still point to the existence of new particles in an indirect way.For ex-ample,consider how the discovery of neutral currents by the Gargamelle collaboration in 1973[1]was followed,a long decade later,by the discovery of the massive W and Z bosons by the UA1 and UA2 collaborations[2].In this example,in-direct evidence for new physics preceded and guided the di-rect discovery of new particles.These discoveries were mo-mentous,marking the beginning of a golden era for Particle Physics,and sparking the long search for the missing Higgs boson that culminated in 2012[3].