Journal Article

Luminosity determination in pp collisions at s=13 TeV using the ATLAS detector at the LHC

Walkowiak, W., Raine, J. A., Lucotte, A., Rendel, M. B., Watson, H., Introzzi, G., Zanzi, D., Pan, J., Gao, Y., Codina, E. Perez, Strom, D. M., Li, C.-Q., Yang, Z., Ezhilov, A., Fabbri, L., Falke, P. J., Aguilar-Saavedra, J. A., Carminati, L., Cantero, J., Pereira, B. C. Pinheiro, Hsu, S.-C., Pedro, R., Carlotto, J. I., Agullo, P. Martinez, Meyer, C., Guerrieri, G., Luise, I., Navarro, J. E. García, Zhang, P., Diaz, M. A., Dudarev, A., Booth, C. D., Atmani, H., Borissov, G., Kajomovitz, E., Brüers, B., Yang, Y., Lyons, H., Catmore, J. R., Calafiura, P., Garg, R. B., Gonzalez-Sevilla, S., Korn, A., Shaheen, R., Sauerburger, F., Bhopatkar, V. S., Simpson, E. L., Hessey, N. P., Schaefer, D., Tnourji, A., Zhang, S., Zhukov, K., Golubkov, D., Kang, N. J., Krüger, H., Kupfer, T., Heidorn, W. D., Berthold, A., Hamdaoui, H., Gazis, E. N., Batley, J. R., Vokac, P., Hawkings, R. J., Busch, E. L., Melo, A. H., Yang, X., Kim, Y. K., Levin, D., Tu, Y., Schwarz, T. A., Ward, R. J., Lehmann, K., Calace, N., Domenico, A. Di, Zoccoli, A., Raskina, V., Jia, J., Viehhauser, G. H. A., Pettee, M., Cameron, D., Tariq, K., Huang, S., Junkermann, T., Veloso, F., Zhang, R., Ti

2023

Overview

The luminosity determination for the ATLAS detector at the LHC during Run 2 is presented, with pp collisions at a centre-of-mass energy s = 13  TeV. The absolute luminosity scale is determined using van der Meer beam separation scans during dedicated running periods in each year, and extrapolated to the physics data-taking regime using complementary measurements from several luminosity-sensitive detectors. The total uncertainties in the integrated luminosity for each individual year of data-taking range from 0.9% to 1.1%, and are partially correlated between years. After standard data-quality selections, the full Run 2 pp data sample corresponds to an integrated luminosity of 140.1 ± 1.2   fb - 1 , i.e. an uncertainty of 0.83%. A dedicated sample of low-pileup data recorded in 2017–2018 for precision Standard Model physics measurements is analysed separately, and has an integrated luminosity of 338.1 ± 3.1   pb - 1 .

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V
• Subject: Algorithms / Astronomy / Astrophysics and Cosmology / Calibration / Collaboration / Collisions / Datasets / Elementary Particles / Fysik / Hadrons / Heavy Ions / Large Hadron Collider / Luminosity / Measurement Science and Instrumentation / Natural Sciences / Naturvetenskap / Nuclear Energy / Nuclear Physics / Physical Sciences / Physics / Physics and Astronomy / Quantum Field Theories / Quantum Field Theory / Regular Article - Experimental Physics / Sensors / Standard data / String Theory / Subatomic Physics / Subatomär fysik / Uncertainty