PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Cosmic-Ray Indirect. CRI- hadronic interactions/EAS development
Measurement of very forward particle production at RHIC with √s=510 GeV proton-proton collisions
T. Sako*, Y. Itow, Q.D. Zhou, M. Ueno, M. Shinoda, K. Sato, H. Menjo, I. Nakagawa, R. Seidl, M.H. Kim, K. Tanida, S. Torii, K. Kasahara, T. Suzuki, N. Sakurai, O. Adriani, R. D’Alessandro, L. Bonechi, E. Berti, A. Tricomi, Y. Goto and J.S. Park
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Pre-published on: August 16, 2017
Published on: August 03, 2018
The Relativistic Heavy Ion Collider forward (RHICf) experiment has measured neutral particles produced in the very forward direction in the √s=510 GeV proton-proton collisions at RHIC in June 2017. The production cross sections of these particles are crucial to understand the hadronic interaction relevant to the air shower development at the cosmic-ray equivalent energy of 1.4×10$^{14}$ eV, just below the energy of the knee. Together with the data at LHC, accelerator data can cover the interaction in the cosmic-ray energy of 10$^{14}$ eV to 10$^{17}$ eV. In addition, RHICf is able to improve the former measurements of single-spin asymmetry in the polarized proton- proton collisions that is sensitive to the fundamental process of the meson exchange. Common data taking with the STAR experiment will shed light on the unexplored low mass diffraction process.
DOI: https://doi.org/10.22323/1.301.0337
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