Early results of the LHCf Experiment and their contribution to Ultra-High-Energy Cosmic Ray Physics
O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D'Alessandro, A., Faus, K. Fukatsu, M. Haguenauer, Y. Itow, K. Kasahara, D. Macina, T. Mase, K., Masuda, Y. Matsubara, H. Menjo, G. Mitsuka, Y. Muraki, M. Nakai, K. Noda, P., Papini, A L. Perrot, S. Ricciarini, T. Sako
TL;DR
The LHCf experiment measures forward neutral particles to improve models used in ultra-high-energy cosmic ray research, providing initial photon spectra data at 7 TeV to aid calibration efforts.
Contribution
This paper presents early photon spectra data from LHCf at 7 TeV, contributing new experimental measurements for cosmic ray model calibration.
Findings
Photon spectra obtained at 7 TeV in the forward region
Data helps calibrate hadron interaction models for cosmic ray studies
Preliminary results support ongoing cosmic ray physics research
Abstract
LHCf is an experiment dedicated to the measurement of neutral particles emitted in the very forward region of LHC collisions. The physics goal is to provide data for calibrating hadron interaction models that are used in the study of Extremely High-Energy Cosmic-Rays. The LHCf experiment acquired data from April to July 2010 during commissioning time of LHC operations at low luminosity. Production spectra of photons and neutrons emitted in the very forward region ( 8.4) have been obtained. In this paper preliminary results of the photon spectra taken at = 7TeV are reported.
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