1. Measurement of the production cross section of 31 GeV/$c$ protons on carbon via beam attenuation in a 90-cm-long target
- Author
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SHINE Collaboration, Acharya, A., Adhikary, H., Aduszkiewicz, A., Allison, K. K., Andronov, E. V., Anti��i��, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryli��ski, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., ��irkovi��, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Ga��dzicki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kie��bowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Koz��owski, B., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., L��szl��, A., Lazareva, T. V., Lewicki, M., ��ojek, K., Lyubushkin, V. V., Ma��kowiak-Paw��owska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, ��., Morozov, S., Nagai, Y., Naskr��t, M., Ozvenchuk, V., Paolone, V., Pavin, M., Petukhov, O., P��aneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiada��a-Zezula, M., Prokhorova, D. S., Pszczel, D., Pu��awski, S., Puzovi��, J., Ravonel, M., Renfordt, R., R��hrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., S��odkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Str��bele, H., ��u��a, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberi��, D., Vechernin, V. V., Wickremasinghe, A., Wojcik, K., Wyszy��ski, O., Zaitsev, A., Zimmerman, E. D., Zwaska, R., Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and NA61/SHINE
- Subjects
data analysis method ,NA61 ,carbon: target ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,measured [channel cross section] ,FOS: Physical sciences ,KAMIOKANDE ,target [carbon] ,neutrino: flux ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Particle Physics Experiments ,ddc:530 ,Nuclear Experiment ,attenuation ,31 GeV/c ,Physics ,J-PARC Lab ,oscillation [neutrino] ,flux [neutrino] ,CERN SPS ,fractional ,direct production ,High Energy Physics::Experiment ,hadron ,spectrometer ,neutrino: oscillation ,channel cross section: measured ,Particle Physics - Experiment ,experimental results - Abstract
The production cross section of 30.92 GeV/$c$ protons on carbon is measured by the NA61/SHINE spectrometer at the CERN SPS by means of beam attenuation in a copy (replica) of the 90-cm-long target of the T2K neutrino oscillation experiment. The employed method for direct production cross-section estimation minimizes model corrections for elastic and quasi-elastic interactions. The obtained production cross section is $\sigma_\mathrm{prod}~=~227.6~\pm~0.8\mathrm{(stat)}~_{-~3.2}^{+~1.9}\mathrm{(sys)}~{-~0.8}\mathrm{(mod)}$ mb. It is in agreement with previous NA61/SHINE results obtained with a thin carbon target, while providing improved precision with a total fractional uncertainty of less than 2$\%$. This direct measurement is performed to reduce the uncertainty on the T2K neutrino flux prediction associated with the re-weighting of the interaction rate of neutrino-yielding hadrons., Comment: 20 pages, 10 figures
- Published
- 2020
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