In a recent paper, published in Physical Review Letters, the Belle II Collaboration reported the first direct measurement of the tau-to-light-lepton ratio (𝑅(𝑋𝜏/ℓ) of inclusive B-meson ...

A particle detector flying above Antarctica has detected highly unusual radio pulses coming from beneath the ice. The Antarctic Impulsive Transient Antenna (ANITA) experiment floats a range of ...

In March 2024, the CMS collaboration announced the observation of two photons creating two tau leptons in proton–proton collisions. It is the first time that this process has been seen in proton ...

The name 'lepton' was coined in 1948 by physicist Léon Rosenfeld and the final lepton to be discovered, the tau neutrino was found as recently as the year 2000.

The tau lepton leaves a spray or jet of low-energy particles, the subtle pattern of which in the jet allows one to distinguish them from jets produced by other particles.

The study also found that using the same data, the precision of measuring the tau lepton mass can be improved to an unprecedented level of 1 keV, two orders of magnitude higher than the highest ...

The second piece of evidence for lepton universality violations comes from observing a beauty quark decaying into a charm quark (c), a lepton (l) and a neutrino (υ). Here tau leptons are expected ...