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production in polarized proton-proton collisions at 
= 510 GeVKim, M. H.*; 谷田 聖; 他20名*
EPJ Web of Conferences, 208, p.05007_1 - 05007_4, 2019/05
被引用回数：0 パーセンタイル：0.06(Astronomy & Astrophysics)Transverse single spin asymmetry, 
, of very forward 
production from polarized 
collisions provides new information toward an understanding of its production mechanism. of forward in the pseudorapidity region of 
has been described by the partonic structure of the proton in the perturbative QCD framework. However, recent data indicates a potential contribution from not only partonic but also diffractive interactions. In order to provide a new insight on the origin of the , we measured the very forward production in the pseudorapidity region of 
from 
= 510 GeV polarized collisions at RHIC in 2017. We report our measurement of the very forward over the transverse momentum range of 
GeV/
and the preliminary result.
510 GeV proton-proton collisionsさこ 隆志*; 谷田 聖; 他20名*
Proceedings of Science (Internet), 301, p.337_1 - 337_8, 2018/08
The Relativistic Heavy Ion Collider forward (RHICf) experiment has measured neutral particles produced in the very forward direction in the 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 
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
eV to 10
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.
