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Abstract
The Relativistic Heavy Ion Collider forward experiment is ready to take data in the RHIC Run2017 √ s = 510 GeV p-p collisions using the LHCf Arm1 detector. New accelerator data are valuable to verify the Feynman scaling of FX1 production and to study the evolution of the break of scaling in neutron production. Using the transversely polarized proton beam, asymmetric production of forward neutrons is precisely measured. That is useful to understand the fundamental meson exchange in the proton-proton collisions.
Highlights
Collider (LHC) [1].The LHC provides the highest collision energy corresponding to the cosmic-ray interaction energy of 1017 eV
Even though the interaction is better understood at the LHC energy range, experimental data are not enough to extend the knowledge beyond the LHC energy, or even below
To extrapolate the accelerator results to the arbitrary collision energy, which is√required for cosmic-ray analysis, verification of scaling or s dependence is important
Summary
Collider (LHC) [1].The LHC provides the highest collision energy corresponding to the cosmic-ray interaction energy of 1017 eV. To extrapolate the accelerator results to the arbitrary collision energy, which is√required for cosmic-ray analysis, verification of scaling or s dependence is important. The. LHCf experiment [2] reported that the differential cross sections of forward π 0 production in xF -p√T phase space hold the Feynman scaling [3] between s = 2.76 TeV and 7 TeV p-p collisions [4]. The overview, operation plan and expected results of the experiment are introduced, Sect. Another scientific target, the measurement of the single-spin asymmetry of the forward particles, is introduced in Sect.
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