Neutron measurement of the LHCF experiment

T. Mase; O. Adriani; L. Bonechi; M. Bongi; G. Castellini; R. D'Alessandro; M. Haguenauer; Y. Itow; K. Kasahara; D. Macina; K. Masuda; Y. Matsubara; H. Menjo; Y. Muraki; M. Nakai; P. Papini; A. L. Perrot; S. Ricciariniz; T. Sako; Y. Shimizu; K. Taki; T. Tamura; Shoji Torii; A. Tricomi; W. C. Turner; A. Viciani; K. Yoshida

Neutron measurement of the LHCF experiment

T. Mase, O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D'Alessandro, M. Haguenauer, Y. Itow, K. Kasahara, D. Macina, K. Masuda, Y. Matsubara, H. Menjo, Y. Muraki, M. Nakai, P. Papini, A. L. Perrot, S. Ricciariniz, T. Sako, Y. ShimizuK. Taki, T. Tamura, Shoji Torii, A. Tricomi, W. C. Turner, A. Viciani, K. Yoshida

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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 the hadron interaction models that are used in studies of extremely high-energy cosmic rays. LHCf can discriminate the existing models by the measurement of gamma-rays. Furthermore, because measurement of neutrons gives information of elasticity, it is complementary to the measurement of gamma-rays. The performances of the LHCf detectors for hadron showers were investigated at the CERN SPS H4 beam line in 2007. The tests were performed using 150MeV and 350 GeV protons. The detection efficiencies of 11% and 26 %, the energy resolutions of 21% and 27% are obtained for each energy. These results are in agreement with the results of full Monte Carlo simulation. We also simulated for the energy range at the LHC operation and found the efficiency and resolution are almost independent of incident energy over 1 TeV. At 3TeV, the detection efficiency and the resolution were about 20% and 40 %, respectively. We also found that the number of shower particles contained in a neutron event is approximately 30% with respect to that of an electron induced shower with the same energy.

Original language	English
Title of host publication	31st International Cosmic Ray Conference, ICRC 2009
Publisher	University of Lodz
Publication status	Published - 2009
Event	31st International Cosmic Ray Conference, ICRC 2009 - Lodz Duration: 2009 Jul 7 → 2009 Jul 15

Other

Other	31st International Cosmic Ray Conference, ICRC 2009
City	Lodz
Period	09/7/7 → 09/7/15

Keywords

Hadron interaction model
High-energy cosmic-ray
LHC

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

Mase, T., Adriani, O., Bonechi, L., Bongi, M., Castellini, G., D'Alessandro, R., Haguenauer, M., Itow, Y., Kasahara, K., Macina, D., Masuda, K., Matsubara, Y., Menjo, H., Muraki, Y., Nakai, M., Papini, P., Perrot, A. L., Ricciariniz, S., Sako, T., ... Yoshida, K. (2009). Neutron measurement of the LHCF experiment. In 31st International Cosmic Ray Conference, ICRC 2009 University of Lodz.

Mase, T, Adriani, O, Bonechi, L, Bongi, M, Castellini, G, D'Alessandro, R, Haguenauer, M, Itow, Y, Kasahara, K, Macina, D, Masuda, K, Matsubara, Y, Menjo, H, Muraki, Y, Nakai, M, Papini, P, Perrot, AL, Ricciariniz, S, Sako, T, Shimizu, Y, Taki, K, Tamura, T, Torii, S, Tricomi, A, Turner, WC, Viciani, A & Yoshida, K 2009, Neutron measurement of the LHCF experiment. in 31st International Cosmic Ray Conference, ICRC 2009. University of Lodz, 31st International Cosmic Ray Conference, ICRC 2009, Lodz, 09/7/7.

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title = "Neutron measurement of the LHCF experiment",

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 the hadron interaction models that are used in studies of extremely high-energy cosmic rays. LHCf can discriminate the existing models by the measurement of gamma-rays. Furthermore, because measurement of neutrons gives information of elasticity, it is complementary to the measurement of gamma-rays. The performances of the LHCf detectors for hadron showers were investigated at the CERN SPS H4 beam line in 2007. The tests were performed using 150MeV and 350 GeV protons. The detection efficiencies of 11% and 26 %, the energy resolutions of 21% and 27% are obtained for each energy. These results are in agreement with the results of full Monte Carlo simulation. We also simulated for the energy range at the LHC operation and found the efficiency and resolution are almost independent of incident energy over 1 TeV. At 3TeV, the detection efficiency and the resolution were about 20% and 40 %, respectively. We also found that the number of shower particles contained in a neutron event is approximately 30% with respect to that of an electron induced shower with the same energy.",

keywords = "Hadron interaction model, High-energy cosmic-ray, LHC",

author = "T. Mase and O. Adriani and L. Bonechi and M. Bongi and G. Castellini and R. D'Alessandro and M. Haguenauer and Y. Itow and K. Kasahara and D. Macina and K. Masuda and Y. Matsubara and H. Menjo and Y. Muraki and M. Nakai and P. Papini and Perrot, {A. L.} and S. Ricciariniz and T. Sako and Y. Shimizu and K. Taki and T. Tamura and Shoji Torii and A. Tricomi and Turner, {W. C.} and A. Viciani and K. Yoshida",

year = "2009",

language = "English",

booktitle = "31st International Cosmic Ray Conference, ICRC 2009",

publisher = "University of Lodz",

note = "31st International Cosmic Ray Conference, ICRC 2009 ; Conference date: 07-07-2009 Through 15-07-2009",

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TY - GEN

T1 - Neutron measurement of the LHCF experiment

AU - Mase, T.

AU - Adriani, O.

AU - Bonechi, L.

AU - Bongi, M.

AU - Castellini, G.

AU - D'Alessandro, R.

AU - Haguenauer, M.

AU - Itow, Y.

AU - Kasahara, K.

AU - Macina, D.

AU - Masuda, K.

AU - Matsubara, Y.

AU - Menjo, H.

AU - Muraki, Y.

AU - Nakai, M.

AU - Papini, P.

AU - Perrot, A. L.

AU - Ricciariniz, S.

AU - Sako, T.

AU - Shimizu, Y.

AU - Taki, K.

AU - Tamura, T.

AU - Torii, Shoji

AU - Tricomi, A.

AU - Turner, W. C.

AU - Viciani, A.

AU - Yoshida, K.

PY - 2009

Y1 - 2009

N2 - 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 the hadron interaction models that are used in studies of extremely high-energy cosmic rays. LHCf can discriminate the existing models by the measurement of gamma-rays. Furthermore, because measurement of neutrons gives information of elasticity, it is complementary to the measurement of gamma-rays. The performances of the LHCf detectors for hadron showers were investigated at the CERN SPS H4 beam line in 2007. The tests were performed using 150MeV and 350 GeV protons. The detection efficiencies of 11% and 26 %, the energy resolutions of 21% and 27% are obtained for each energy. These results are in agreement with the results of full Monte Carlo simulation. We also simulated for the energy range at the LHC operation and found the efficiency and resolution are almost independent of incident energy over 1 TeV. At 3TeV, the detection efficiency and the resolution were about 20% and 40 %, respectively. We also found that the number of shower particles contained in a neutron event is approximately 30% with respect to that of an electron induced shower with the same energy.

AB - 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 the hadron interaction models that are used in studies of extremely high-energy cosmic rays. LHCf can discriminate the existing models by the measurement of gamma-rays. Furthermore, because measurement of neutrons gives information of elasticity, it is complementary to the measurement of gamma-rays. The performances of the LHCf detectors for hadron showers were investigated at the CERN SPS H4 beam line in 2007. The tests were performed using 150MeV and 350 GeV protons. The detection efficiencies of 11% and 26 %, the energy resolutions of 21% and 27% are obtained for each energy. These results are in agreement with the results of full Monte Carlo simulation. We also simulated for the energy range at the LHC operation and found the efficiency and resolution are almost independent of incident energy over 1 TeV. At 3TeV, the detection efficiency and the resolution were about 20% and 40 %, respectively. We also found that the number of shower particles contained in a neutron event is approximately 30% with respect to that of an electron induced shower with the same energy.

KW - Hadron interaction model

KW - High-energy cosmic-ray

KW - LHC

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M3 - Conference contribution

AN - SCOPUS:84899064647

BT - 31st International Cosmic Ray Conference, ICRC 2009

PB - University of Lodz

T2 - 31st International Cosmic Ray Conference, ICRC 2009

Y2 - 7 July 2009 through 15 July 2009

ER -

Neutron measurement of the LHCF experiment

Abstract

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Keywords

ASJC Scopus subject areas

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