Measurement of hadron production in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:mtext>−</mml:mtext><mml:mi mathvariant="normal">C</mml:mi></mml:mrow></mml:math> interactions at 158 and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>350</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>GeV</mml:mi><mml:mo>/</mml:mo><mml:mi>c</mml:mi></mml:mrow></mml:math> with NA61/SHINE at the CERN SPS
H. Adhikary, K. K. Allison, N. M. Amin, Evgeny Andronov, T. Antičić, I. C. Arsene, Y. Balkova, M. Baszczyk, D. Battaglia, S. Bhosale, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. V. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, A. Damyanova, N. Davis, H.-P. Dembinski, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, Г. Феофилов, L. Fields, Z. Fodor, M. Friend, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, M. Haug, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, S. R. Johnson, K. Kadija, Н. И. Каргин, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, A. Korzenev, Y. Koshio, V. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, Á. László, M. P. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, I. C. Mariş, Zuzanna Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Márton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, B. Messerly, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi
Abstract
We present a measurement of the momentum spectra of ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, ${\mathrm{K}}^{\ifmmode\pm\else\textpm\fi{}}$, ${\mathrm{p}}^{\ifmmode\pm\else\textpm\fi{}}$, $\mathrm{\ensuremath{\Lambda}}$, $\overline{\mathrm{\ensuremath{\Lambda}}}$, and ${\mathrm{K}}_{\mathrm{S}}^{0}$ produced in interactions of negatively charged pions with carbon nuclei at beam momenta of 158 and $350\text{ }\text{ }\mathrm{GeV}/c$. The total production cross sections are measured as well. The data were collected with the large-acceptance spectrometer of the fixed target experiment NA61/SHINE at the CERN SPS. The obtained double-differential $p\text{\ensuremath{-}}{p}_{\mathrm{T}}$ spectra provide a unique reference dataset with unprecedented precision and large phase-space coverage to tune models used for the simulation of particle production in extensive air showers in which pions are the most numerous projectiles.