Luminosity determination in vs =7TeV proton Collisions Using the LHCf Front Counter at LHC

K. Taki, O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D'alessandro, K. Fukatsu, M. Haguenauer, Y. Itow, K. Kasahara, K. Kawade, D. Macina, T. Mase, K. Masuda, H. Menjo, G. Mitsuka, Y. Muraki, K. Noda, P. Papini, A. L. PerrotS. Ricciarini, T. Sako, Y. Shimizu, K. Suzuki, T. Suzuki, T. Tamura, Shoji Torii, A. Tricomi, W. C. Turner

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    The LHCf experiment is dedicated to measure the particles emitted to forward region of proton-proton collisions at LHC. The physics goal is to afford the data for the calibration and improvement of the hadron interaction models. In this experiment, the luminosity that is necessary parameter to normalize the data has been determined with the counting rate of a detector called Front Counter and the conversion factor from the rate to the luminosity. During the LHCf physics operation at vs =7 TeV in 2010, the two calibrations of this conversion factor were carried out in 26th of April and 9th of May. This calibration is named vdM scan that is invented by S. van der Meer in 1969. The luminosity during the vdM scans were determined within 5%and 4%accuracy for April and May scan respectively. Finally, because the conversion factor is estimated within 5.5% accuracy, the luminosity determination in the LHCf experiment is also 5.5% accuracy.

    本文言語English
    ホスト出版物のタイトルProceedings of the 32nd International Cosmic Ray Conference, ICRC 2011
    出版社Institute of High Energy Physics
    ページ23-26
    ページ数4
    5
    DOI
    出版ステータスPublished - 2011
    イベント32nd International Cosmic Ray Conference, ICRC 2011 - Beijing
    継続期間: 2011 8月 112011 8月 18

    Other

    Other32nd International Cosmic Ray Conference, ICRC 2011
    CityBeijing
    Period11/8/1111/8/18

    ASJC Scopus subject areas

    • 核物理学および高エネルギー物理学

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