Transverse single spin asymmetry for very forward π0 production in polarized proton-proton collisions at √s=510 GeV

被引：0

作者：

Kim, M. H. ^{[1
,2
]}

Hong, B. ^{[1
]}

Goto, Y. ^{[2
,3
]}

Nakagawa, I ^{[2
,3
]}

Seidl, R. ^{[2
,3
]}

Park, J. S. ^{[2
,4
]}

Tanida, K. ^{[5
]}

Itow, Y. ^{[6
,7
]}

Menjo, H. ^{[10
]}

Sato, K. ^{[6
]}

Ueno, M. ^{[6
]}

Zhou, Q. D. ^{[6
]}

Sako, T. ^{[8
]}

Kasahara, K. ^{[9
]}

Suzuki, T. ^{[9
]}

Torii, S. ^{[9
]}

Sakurai, N. ^{[11
]}

Adriani, O. ^{[12
,15
]}

Bonechi, L. ^{[12
]}

Berti, E. ^{[12
,15
]}

D'Alessandro, R. ^{[12
,15
]}

Tricomi, A. ^{[13
,14
]}

机构：

[1] Korea Univ, Dept Phys, Seoul, South Korea

[2] RIKEN, Nishina Ctr Accelerator Based Sci, Saitama, Japan

[3] Brookhaven Natl Lab, RIKEN BNL Res Ctr, New York, NY USA

[4] Seoul Natl Univ, Dept Phys, Seoul, South Korea

[5] Japan Atom Energy Agcy, Ibaraki, Japan

[6] Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi, Japan

[7] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Nagoya, Aichi, Japan

[8] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba, Japan

[9] Waseda Univ, RISE, Shinjuku KU, Tokyo, Japan

[10] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi, Japan

[11] Tokushima Univ, Tokushima, Japan

[12] Ist Nazl Fis Nucl, Sect Florence, Florence, Italy

[13] Ist Nazl Fis Nucl, Sect Catania, Catania, Italy

[14] Univ Catania, Catania, Italy

[15] Univ Florence, Florence, Italy

来源：

XX INTERNATIONAL SYMPOSIUM ON VERY HIGH ENERGY COSMIC RAY INTERACTIONS (ISVHECRI 2018) | 2019年 / 208卷

基金：

新加坡国家研究基金会;

关键词：

HADRON;

D O I：

10.1051/epjconf/201920805007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Transverse single spin asymmetry, A(N), of very forward pi(0) production from polarized p + p collisions provides new information toward an understanding of its production mechanism. A(N) of forward pi(0) in the pseudorapidity region of 3 < eta < 4 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 A(N), we measured the very forward pi(0) production in the pseudorapidity region of 6 < eta from root s = 510 GeV polarized p + p collisions at RHIC in 2017. We report our measurement of the very forward 7r over the transverse momentum range of 0 < p(T) < 1 GeV/c and the preliminary result.

引用

页数：4

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