CERN Accelerating science

Article
Title Status and Prospects of the LHCf and RHICf experiments
Author(s) LHCf Collaboration  显示全部 33 名作者
Publication SISSA, 2022
Number of pages 9
In: PoS ICRC2021 (2022) 301
In: 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.301
DOI 10.22323/1.395.0301 (publication)
Subject category Detectors and Experimental Techniques ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCf
Abstract Precise understanding of hadronic interactions at high energies is a key to improve mass composition measurements of very high energy cosmic-rays and to solve the muon excess issue observed in high energy cosmic-ray experiments using an air-shower technique. The LHCf and RHICf experiments measures the differential production cross sections of very forward neutral particle as photons, neutral pions and neutrons at LHC and RHIC, respectively. These data are critically important to test and tune hadronic interaction models used for air-shower simulations. In this presentation, we introduce the recent results of both the experiments as well as our future operation plans. LHCf published an updated result of forward neutron measurement at pp, s = 13 TeV. From the observed neutron energy spectra, we also obtained the average inelasticity, which is one of the key parameters for air shower development, as 0.536 +0.031-0.037. In addition, several analysis are on-going; neutral pion measurement at pp, s = 13 TeV, central- forward correlation analysis with LHCf+ATLAS, photon measurement by RHICf. LHCf plans to have operations at pp and pO during the LHC-Run3 period. At pp collisions, new silicon readout system will be introduced to improve the read-out speed, and 10 times more statistics of the previous operation in 2015 will be obtained. Thanks to high statistics, rare particles such as η, Ks0 and Λ will be addressed also. We also plan another operation at RHIC in 2024 with a new detector. The detector, a calorimeter composed of tungsten, Si pad and pixel layers, will have a much wider acceptance and higher sensitivity of Ks0 measurement than the current detector.
Copyright/License publication: © 2022-2024 The author(s) (License: CC-BY-NC-ND-4.0)

Corresponding record in: Inspire


 记录创建於2022-07-05,最後更新在2022-07-21


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