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- Title
Boosted Tau Lepton as a Microscope and Macroscope.
- Authors
Qian, Sitian; Guan, Zhe; Deng, Sen; Song, Yunxuan; Mu, Tianyu; Xiao, Jie; Yang, Tianyi; Wang, Siguang; Mao, Yajun; Li, Qiang; Lu, Meng; You, Zhengyun
- Abstract
Anomalies from the LHCb lepton flavour universality and Fermilab muon anomalous magnetic moment show tantalizing hints of possible new physics from the lepton sectors. Due to its large mass and shorter lifetime than muon, the tau lepton is believed to couple more to possible new physics beyond the Standard Model. Traditionally, tau leptons are probed through their decay products due to tau's short lifetime. On the other hand, at a high energy scale, a large fraction of tau leptons could be boosted to a much longer lifetime and fly a visible distance from several centimetres up to kilometer length scale yet very informative to new physics beyond the standard model or high energy cosmic rays. In this article, we investigate rare, yet promising, tau-physics phenomena, where long-lived taus are exploited either as a microscope (for the measurement of tau's anomalous magnetic moment to an unprecedented level of accuracy) or as a macroscope (for the detection of 1 TeV to 1 PeV cosmic neutrinos).
- Subjects
NEUTRINO detectors; COSMIC rays; LEPTONS (Nuclear physics); MUONS; STANDARD model (Nuclear physics); MAGNETIC moments; MICROSCOPES
- Publication
Advances in High Energy Physics, 2022, p1
- ISSN
1687-7357
- Publication type
Article
- DOI
10.1155/2022/4931241