Performances of the LHCf Arm1 detector during √s=13.6 TeV p- p operation in 2022

Kitagami, Y.; Adriani, O.; Berti, E.; Betti, P.; Bonechi, L.; Bongi, M.; D'Alessandro, R.; Detti, S.; Haguenauer, M.; Itow, Y.; Kasahara, K.; Kitagami, Y.; Kondo, M.; Matsubara, Y.; Menjo, H.; Muraki, Y.; Ohashi, K.; Papini, P.; Piparo, G.; Ricciarini, S.; Sako, T.; Sakurai, N.; Scaringella, M.; Shimizu, Y.; Tamura, T.; Tiberio, A.; Torii, S.; Tricomi, A.; Turner, W. C.; Yoshida, K.

The LHCf experiment obtained the data in the operation with pp collisions at √s = 13.6 TeV in 2022. The statistics is 10 times larger than that of the previous operation in 2015. This large statistics data allow us to measure the production of strange mesons like η and K0, and it will improve hadronic interaction models commonly used for simulations of air showers produced by ultra-high energy cosmic rays. The energy scale is one of the most important parameters for analyses of differential production cross-section measurements with the LHCf detectors. This paper presents the stability of the energy scale of the Arm1 detector during the operation in 2022 by using the reconstructed invariant mass of the π0 meson. As a result, we confirmed that the stability is about 1%.

Performances of the LHCf Arm1 detector during √s=13.6 TeV p- p operation in 2022 / Kitagami Y.; Adriani O.; Berti E.; Betti P.; Bonechi L.; Bongi M.; D'Alessandro R.; Detti S.; Haguenauer M.; Itow Y.; Kasahara K.; Kitagami Y.; Kondo M.; Matsubara Y.; Menjo H.; Muraki Y.; Ohashi K.; Papini P.; Piparo G.; Ricciarini S.; Sako T.; Sakurai N.; Scaringella M.; Shimizu Y.; Tamura T.; Tiberio A.; Torii S.; Tricomi A.; Turner W.C.; Yoshida K.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - ELETTRONICO. - 444:(2024), pp. 483.0-483.0.