The results from LHCf: Very forward measurements for cosmic ray interactions

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

The results from LHCf: Very forward measurements for cosmic ray interactions

H. Menjo^*, O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D’Alessandro, M. Haguenauer, Y. Itow, K. Kasahara, K. Kawade, Y. Makino, K. Masuda, E. Matsubayashi, G. Mitsuka, Y. Muraki, P. Papini, A. L. Perrot, D. Pfeiffer, S. Ricciarini, T. SakoY. Shimizu, T. Suzuki, T. Tamura, Shoji Torii, A. Tricomi, W. C. Turner

^*Corresponding author for this work

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

Abstract

The LHCf experiment is an unique dedicated experiment for measurement of very forward particle production relevant to cosmic-ray air shower developments by using small electromagnetic imaging calorimeters at the zero degree of the LHC interaction point, IP1. The operationa with p-p collisions at s = 900 GeV and 7 TeV have been done in 2009 and 2010. The results of forward production spectra of photons and π⁰s are compared with the existing cosmic ray interaction models, SYBILL, QGSJETII, DPMJET3, and EPOS1.99. None of them could completely reproduce the data. On-going hadron analysis will be also important to understand inelas-ticity of collisions. LHCf has also completed data taking for LHC p-Pb collisions to study nuclear effect relevant to air shower development. This is also very important to validate composition measurements by air-shower experiments based on X_MAX. Current achievement of the LHCf experiment and possible future experiments at p-A and/or A-A collisions at LHC and RHIC are presented.

Original language	English
Title of host publication	Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013
Publisher	Sociedade Brasileira de Fisica
Volume	2013-October
ISBN (Electronic)	9788589064293
Publication status	Published - 2013 Jan 1
Event	33rd International Cosmic Rays Conference, ICRC 2013 - Rio de Janeiro, Brazil Duration: 2013 Jul 2 → 2013 Jul 9

Other

Other	33rd International Cosmic Rays Conference, ICRC 2013
Country/Territory	Brazil
City	Rio de Janeiro
Period	13/7/2 → 13/7/9

Keywords

Hadron interaction
LHC
UHECR

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

Menjo, H., Adriani, O., Bonechi, L., Bongi, M., Castellini, G., D’Alessandro, R., Haguenauer, M., Itow, Y., Kasahara, K., Kawade, K., Makino, Y., Masuda, K., Matsubayashi, E., Mitsuka, G., Muraki, Y., Papini, P., Perrot, A. L., Pfeiffer, D., Ricciarini, S., ... Turner, W. C. (2013). The results from LHCf: Very forward measurements for cosmic ray interactions. In Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013 (Vol. 2013-October). Sociedade Brasileira de Fisica.

Menjo, H, Adriani, O, Bonechi, L, Bongi, M, Castellini, G, D’Alessandro, R, Haguenauer, M, Itow, Y, Kasahara, K, Kawade, K, Makino, Y, Masuda, K, Matsubayashi, E, Mitsuka, G, Muraki, Y, Papini, P, Perrot, AL, Pfeiffer, D, Ricciarini, S, Sako, T, Shimizu, Y, Suzuki, T, Tamura, T, Torii, S, Tricomi, A & Turner, WC 2013, The results from LHCf: Very forward measurements for cosmic ray interactions. in Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013. vol. 2013-October, Sociedade Brasileira de Fisica, 33rd International Cosmic Rays Conference, ICRC 2013, Rio de Janeiro, Brazil, 13/7/2.

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AU - Menjo, H.

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AU - Bongi, M.

AU - Castellini, G.

AU - D’Alessandro, R.

AU - Haguenauer, M.

AU - Itow, Y.

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AU - Papini, P.

AU - Perrot, A. L.

AU - Pfeiffer, D.

AU - Ricciarini, S.

AU - Sako, T.

AU - Shimizu, Y.

AU - Suzuki, T.

AU - Tamura, T.

AU - Torii, Shoji

AU - Tricomi, A.

AU - Turner, W. C.

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N2 - The LHCf experiment is an unique dedicated experiment for measurement of very forward particle production relevant to cosmic-ray air shower developments by using small electromagnetic imaging calorimeters at the zero degree of the LHC interaction point, IP1. The operationa with p-p collisions at s = 900 GeV and 7 TeV have been done in 2009 and 2010. The results of forward production spectra of photons and π0s are compared with the existing cosmic ray interaction models, SYBILL, QGSJETII, DPMJET3, and EPOS1.99. None of them could completely reproduce the data. On-going hadron analysis will be also important to understand inelas-ticity of collisions. LHCf has also completed data taking for LHC p-Pb collisions to study nuclear effect relevant to air shower development. This is also very important to validate composition measurements by air-shower experiments based on XMAX. Current achievement of the LHCf experiment and possible future experiments at p-A and/or A-A collisions at LHC and RHIC are presented.

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The results from LHCf: Very forward measurements for cosmic ray interactions

Abstract

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Keywords

ASJC Scopus subject areas

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