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Title: Measuring TeV neutrinos with FASER$\nu$ in LHC Run 3
Neutrinos from a particle collider have never been directly detected. FASERšœˆ at the Large Hadron Collider (LHC) is designed to detect such neutrinos for the first time and study their cross sections at TeV energiesā€”at present, no such measurements are available at such high energies. In 2018, during LHC Run 2, we installed a pilot detector 480-m downstream of the ATLAS interaction point. In this pilot run, protonā€“proton collision data of 12.2 fbāˆ’1 at a center-of-mass energy of 13 TeV were collected. We observed the first candidate vertices, which were consistent with neutrino interactions. A 2.7šœŽ excess of neutrino-like signal above the background was measured. This milestone opens a new avenue for studying neutrinos at the existing and future high-energy colliders. During LHC Run 3, which will commence in 2022, we will deploy an emulsion detector with a target mass of 1.1 tons, coupled with the FASER magnetic spectrometer. This will yield āˆ¼2,000 šœˆš‘’, āˆ¼6,000 šœˆšœ‡, and āˆ¼40 šœˆšœ interactions in the detector. Herein, we present the status and plan of FASERšœˆ and report neutrino detection in the 2018 data.  more » « less
Award ID(s):
2111427 2110648
PAR ID:
10339503
Author(s) / Creator(s):
Date Published:
Journal Name:
European Physical Society Conference on High Energy Physics 2021
Page Range / eLocation ID:
248
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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