Latest Results from the FASER Experiment

Abstract

We present the latest physics results from the FASER experiment at the LHC. Using $pp$ collision data at $\sqrt{s}=13.6$ TeV collected during LHC Run 3, FASER reports new results on four fronts: a search for dark photons with an improved analysis strategy using $177f{b}^{-1}$ of data, yielding world-leading exclusion limits; neutrino cross section measurements and the first search for charm hadron production in neutrino interactions, both using the FASER$\hat{I}½$ emulsion detector with a 681 kg tungsten target and $9.5f{b}^{-1}$ of 2022 data; the first observation of $\hat{I}{½}_e$ in the FASER electronic detector at $5.5\ddot{I}ƒ$ using $176.8f{b}^{-1}$ of data; and the first double-differential measurement of $\hat{I}{½}_{\hat{I}}¼$ interactions as a function of energy and rapidity with $186f{b}^{-1}$ of data.

4 pages, 3 figures, contribution to the 2026 QCD session of the 60th Rencontres de Moriond