LHCf DETECTOR PERFORMANCE DURING THE 2009–2010 LHC RUN

Adriani, O.; Bonechi, L.; Bongi, M.; Castellini, G.; D’Alessandro, R.; Haguenauer, M.; Iso, Tadashi; Itow, Y.; Kasahara, K.; Kawade, K.; Masuda, K.; Menjo, H.; Mitsuka, G.; Muraki, Y.; Noda, K.; Papini, P.; Perrot, A. L.; Ricciarini, S.; Sako, T.; Shimizu, Yuki; Suzuki, T.; Tamura, T.; Torii, Shoji; Tricomi, A.; Turner, W. C.

doi:10.1142/s0217751x13300366

Cited by 11 publications

(11 citation statements)

References 17 publications

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“…The construction of the LHCf detectors (Arm1 and Arm2) is reported in Refs. [12,13] and the performance of the detectors has been studied in the previous reports [15,16].…”

Section: The Lhcf Detectormentioning

confidence: 99%

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Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions atsNN=5.02TeV

et al. 2014

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The transverse momentum (p T ) distribution for inclusive neutral pions in the very forward rapidity region has been measured, with the Large Hadron Collider forward detector (LHCf), in proton-lead collisions at nucleon-nucleon center-of-mass energies of √ s NN = 5.02 TeV at the LHC. The p T spectra obtained in the rapidity range −11.0 < y lab < −8.9 and 0 < p T < 0.6 GeV (in the detector reference frame) show a strong suppression of the production of neutral pions after taking into account ultraperipheral collisions. This leads to a nuclear modification factor value, relative to the interpolated p T spectra in proton-proton collisions at √ s = 5.02 TeV, of about 0.1-0.4. This value is compared with the predictions of several hadronic interaction Monte Carlo simulations.

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“…The construction of the LHCf detectors (Arm1 and Arm2) is reported in Refs. [12,13] and the performance of the detectors has been studied in the previous reports [15,16].…”

Section: The Lhcf Detectormentioning

confidence: 99%

“…In all runs the trigger scheme was essentially identical to that used in p-p collisions at √ s = 7 TeV. The trigger efficiency was greater than 99% for photons with energies E > 100 GeV [16].…”

Section: Experimental Data-taking Conditionsmentioning

confidence: 99%

Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions atsNN=5.02TeV

et al. 2014

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“…The position resolution is better than 200 µm for photons and a few mm for neutrons. More details of the detector performance were reported elsewhere [4][5][6][7][8].…”

Section: The Lhcf Experimentsmentioning

confidence: 99%

Recent Results from the LHCf Experiment

Menjo

Adriani

Berti

et al. 2017

Proceedings of the 7th International Workshop on Very High Energy Particle Astronomy in 2014 (VHEPA2014)

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The LHCf experiment is an unique dedicated experiment for measurement of very forward particle production relevant to cosmic-ray air shower developments. The LHCf measured the spectra for forward photons, neutral pions and neutrons at √ s = 7 TeV p-p collisions and the nuclear modification factor for forward neutral pions at √ s = 5 TeV p-Pb. No hadronic interaction models used in air shower developments of very high energy cosmic-rays is able to reproduce all LHCf data reasonably while some of models are able to reproduce LHCf data partially.

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“…Scintillation Fiber (SciFi, 1 mm × 1 mm) detectors and silicon strip sensors (160 µm read-out pitch) are used for the position sensors of Arm1 and Arm2, respectively. The details of the LHCf detectors have been previously reported [1,2,6].…”

Section: The Lhcf Experimentsmentioning

confidence: 99%

The performance of the LHCf detector for hadronic showers

et al. 2014

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The Large Hadron Collider forward (LHCf) experiment has been designed to use the LHC to benchmark the hadronic interaction models used in cosmic-ray physics. It measures neutral particles emitted in the very forward region of the LHC p-p or p-N collisions. In this paper, the performances of the LHCf detectors for hadronic showers was studied with MC simulations and beam tests. The detection efficiency for neutrons varies from 70% to 80% above 500 GeV. The energy resolutions are about 40% and the position resolution is 0.1 to 1.3 mm depending on the incident energy for neutrons. The energy scale determined by the MC simulations and the validity of the MC simulations were examined using 350 GeV proton beams at the CERN-SPS.

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LHCf DETECTOR PERFORMANCE DURING THE 2009–2010 LHC RUN

Cited by 11 publications

References 17 publications

Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions atsNN=5.02TeV

Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions atsNN=5.02TeV

Recent Results from the LHCf Experiment

The performance of the LHCf detector for hadronic showers

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