Abstract
The Large Hadron Collider forward (LHCf) experiment will provide the energy and transverse momentum spectra of neutral particles produced in the very forward region of p-p collision at 7+7 TeV, corresponding to a laboratory frame energy of 10 17 eV. The LHCf apparatus is composed of two independent detectors installed at zero degree collision angle from the ATLAS interaction point. To assess performance of LHCf detectors, we carried out a beam test in 2007 at the CERN SPS H4 beamline. We report results of the Arm#1 detector, using scintillating fibers for measuring shower positions, obtained from electron primary beams of 50-200 GeV, and proton primary beams of 150-350 GeV and muon primary beams of 150-200 GeV. We obtained energy resolution of electrons as a function of the primary energy. The position resolution of shower axis is obtained by using a position determined with the Si microstrip detectors. We also reconstructed the real geometry of each SciFi by the use of muon primary beams. Finally, we report an analysis of π 0 invariant mass observed by coupling the two photons decayed.
| Original language | English |
|---|---|
| Pages (from-to) | 173-176 |
| Number of pages | 4 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 78 |
| Issue number | SUPPL. A |
| Publication status | Published - 2009 |
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Keywords
- Calorimeter
- Cosmic ray
- Hadron interaction
- LHC
- Scintillating fiber
- Ultra high energy
- Very forward neutral particles
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Performance of the Arm#1 detector for LHCf experiment. / Mizuishi, M.; Adriani, O.; Boneohi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; A.faus, D.; Fukui, K.; Grandi, M.; Haguenauer, M.; Itow, Y.; Kasahara, K.; Macina, D.; Mase, T.; Masuda, K.; Matsubara, Y.; Menjo, H.; Muraki, Y.; Papini, P.; Perrot, A. L.; Ricciarini, S.; Sako, T.; Shimizu, Y.; Taki, K.; Tamura, T.; Torii, S.; Tricomi, A.; Turner, W. C.; Velasco, J.; Viciani, A.; Watanabe, H.; Yoshida, Kenji.
In: Journal of the Physical Society of Japan, Vol. 78, No. SUPPL. A, 2009, p. 173-176.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Performance of the Arm#1 detector for LHCf experiment
AU - Mizuishi, M.
AU - Adriani, O.
AU - Boneohi, L.
AU - Bongi, M.
AU - Castellini, G.
AU - D'Alessandro, R.
AU - A.faus, D.
AU - Fukui, K.
AU - Grandi, M.
AU - Haguenauer, M.
AU - Itow, Y.
AU - Kasahara, K.
AU - Macina, D.
AU - Mase, T.
AU - Masuda, K.
AU - Matsubara, Y.
AU - Menjo, H.
AU - Muraki, Y.
AU - Papini, P.
AU - Perrot, A. L.
AU - Ricciarini, S.
AU - Sako, T.
AU - Shimizu, Y.
AU - Taki, K.
AU - Tamura, T.
AU - Torii, S.
AU - Tricomi, A.
AU - Turner, W. C.
AU - Velasco, J.
AU - Viciani, A.
AU - Watanabe, H.
AU - Yoshida, Kenji
PY - 2009
Y1 - 2009
N2 - The Large Hadron Collider forward (LHCf) experiment will provide the energy and transverse momentum spectra of neutral particles produced in the very forward region of p-p collision at 7+7 TeV, corresponding to a laboratory frame energy of 10 17 eV. The LHCf apparatus is composed of two independent detectors installed at zero degree collision angle from the ATLAS interaction point. To assess performance of LHCf detectors, we carried out a beam test in 2007 at the CERN SPS H4 beamline. We report results of the Arm#1 detector, using scintillating fibers for measuring shower positions, obtained from electron primary beams of 50-200 GeV, and proton primary beams of 150-350 GeV and muon primary beams of 150-200 GeV. We obtained energy resolution of electrons as a function of the primary energy. The position resolution of shower axis is obtained by using a position determined with the Si microstrip detectors. We also reconstructed the real geometry of each SciFi by the use of muon primary beams. Finally, we report an analysis of π 0 invariant mass observed by coupling the two photons decayed.
AB - The Large Hadron Collider forward (LHCf) experiment will provide the energy and transverse momentum spectra of neutral particles produced in the very forward region of p-p collision at 7+7 TeV, corresponding to a laboratory frame energy of 10 17 eV. The LHCf apparatus is composed of two independent detectors installed at zero degree collision angle from the ATLAS interaction point. To assess performance of LHCf detectors, we carried out a beam test in 2007 at the CERN SPS H4 beamline. We report results of the Arm#1 detector, using scintillating fibers for measuring shower positions, obtained from electron primary beams of 50-200 GeV, and proton primary beams of 150-350 GeV and muon primary beams of 150-200 GeV. We obtained energy resolution of electrons as a function of the primary energy. The position resolution of shower axis is obtained by using a position determined with the Si microstrip detectors. We also reconstructed the real geometry of each SciFi by the use of muon primary beams. Finally, we report an analysis of π 0 invariant mass observed by coupling the two photons decayed.
KW - Calorimeter
KW - Cosmic ray
KW - Hadron interaction
KW - LHC
KW - Scintillating fiber
KW - Ultra high energy
KW - Very forward neutral particles
UR - http://www.scopus.com/inward/record.url?scp=66849124941&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=66849124941&partnerID=8YFLogxK
M3 - Article
VL - 78
SP - 173
EP - 176
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - SUPPL. A
ER -