Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p plus p, p plus Al, and p plus Au Collisions at √sNN=200 GeV

被引：11

作者：

Aidala, C. ^{[41
]}

Akiba, Y. ^{[53
,54
]}

Alfred, M. ^{[24
]}

Andrieux, V. ^{[41
]}

Apadula, N. ^{[29
]}

Asano, H. ^{[34
,53
]}

Azmoun, B. ^{[7
]}

Babintsev, V. ^{[25
]}

Bandara, N. S. ^{[40
]}

Barish, K. N. ^{[8
]}

Bathe, S. ^{[5
,54
]}

Bazilevsky, A. ^{[7
]}

Beaumier, M. ^{[8
]}

Belmont, R. ^{[12
,47
]}

Berdnikov, A. ^{[56
]}

Berdnikov, Y. ^{[56
]}

Blau, D. S. ^{[33
,44
]}

Bok, J. S. ^{[46
]}

Brooks, M. L. ^{[36
]}

Bryslawskyj, J. ^{[5
,8
]}

Bumazhnov, V. ^{[25
]}

Campbell, S. ^{[13
,14
]}

Roman, V. Canoa ^{[59
]}

Cervantes, R. ^{[59
]}

Chi, C. Y. ^{[13
,14
]}

Chiu, M. ^{[7
]}

Choi, I. J. ^{[26
]}

Choi, J. B. ^{[10
]}

Citron, Z. ^{[64
]}

Connors, M. ^{[22
,54
]}

Cronin, N. ^{[59
]}

Csanad, M. ^{[17
]}

Csorgo, T. ^{[18
,65
]}

Danley, T. W. ^{[48
]}

Daugherity, M. S. ^{[1
]}

David, G. ^{[7
,16
,59
]}

DeBlasio, K. ^{[45
]}

Dehmelt, K. ^{[59
]}

Denisov, A. ^{[25
]}

Deshpande, A. ^{[7
,54
,59
]}

Desmond, E. J. ^{[7
]}

Dion, A. ^{[59
]}

Dixit, D. ^{[59
]}

Do, J. H. ^{[66
]}

Drees, A. ^{[59
]}

Drees, K. A. ^{[6
]}

Durham, J. M. ^{[36
]}

Durum, A. ^{[25
]}

Enokizono, A. ^{[53
,55
]}

En'yo, H. ^{[53
]}

机构：

[1] Abilene Christian Univ, Abilene, TX 79699 USA

[2] Augustana Univ, Dept Phys, Sioux Falls, SD 57197 USA

[3] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

[4] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India

[5] CUNY Bernard M Baruch Coll, 17 Lexington Ave, New York, NY 10010 USA

[6] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA

[7] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[8] Univ Calif Riverside, Riverside, CA 92521 USA

[9] Charles Univ Prague, Ovocny Trh 5, CR-11636 Prague 1, Czech Republic

[10] Chonbuk Natl Univ, Jeonju 561756, South Korea

[11] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[12] Univ Colorado, Boulder, CO 80309 USA

[13] Columbia Univ, New York, NY 10027 USA

[14] Nevis Labs, Irvington, NY 10533 USA

[15] Czech Tech Univ, Zikova 4, Prague 16636 6, Czech Republic

[16] Debrecen Univ, Egyet Ter 1, H-4010 Debrecen, Hungary

[17] Eotvos Lorand Univ, ELTE, Pazmany Ps 1-A, H-1117 Budapest, Hungary

[18] Eszterhazy Karoly Univ, Karoly Robert Campus,Matrai Ut 36, H-3200 Gyongyos, Hungary

[19] Ewha Womans Univ, Seoul 120750, South Korea

[20] Florida A&M Univ, Tallahassee, FL 32307 USA

[21] Florida State Univ, Tallahassee, FL 32306 USA

[22] Georgia State Univ, Atlanta, GA 30303 USA

[23] Hiroshima Univ, Higashihiroshima 7398526, Japan

[24] Howard Univ, Dept Phys & Astron, Washington, DC 20059 USA

[25] Inst High Energy Phys, State Res Ctr Russian Federat, IHEP Protvino, Protvino 142281, Russia

[26] Univ Illinois, Urbana, IL 61801 USA

[27] Russian Acad Sci, Inst Nucl Res, Prospekt 60 Letiya Oktyabrya 7a, Moscow 117312, Russia

[28] Acad Sci Czech Republ, Inst Phys, Slovance 2, Prague 18221, Czech Republic

[29] Iowa State Univ, Ames, IA 50011 USA

[30] Japan Atom Energy Agcy, Adv Sci Res Ctr, 2-4 Shirakata Shirane, Tokai, Ibaraki 3191195, Japan

[31] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan

[32] Korea Univ, Seoul 02841, South Korea

[33] Natl Res Ctr, Kurchatov Inst, Moscow 123098, Russia

[34] Kyoto Univ, Kyoto 6068502, Japan

[35] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[36] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[37] Lund Univ, Dept Phys, Box 118, SE-22100 Lund, Sweden

[38] Univ Lyon 1, Univ Lyon, CNRS, IPNL,IN2P3, F-69622 Villeurbanne, France

[39] Univ Maryland, College Pk, MD 20742 USA

[40] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[41] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[42] Muhlenberg Coll, Allentown, PA 18104 USA

[43] Nara Womens Univ, Kita Uoya Nishi Machi, Nara 6308506, Japan

[44] Natl Res Nucl Univ, Moscow Engn Phys Inst, Moscow 115409, Russia

[45] Univ New Mexico, Albuquerque, NM 87131 USA

[46] New Mexico State Univ, Las Cruces, NM 88003 USA

[47] Univ North Carolina Greensboro, Dept Phys & Astron, Greensboro, NC 27412 USA

[48] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[49] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[50] Univ Paris Saclay, Univ Paris Sud, CNRS, IPN Orsay,IN2P3, BP1, F-91406 Orsay, France

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 12期

基金：

日本学术振兴会; 美国国家科学基金会; 以色列科学基金会;

关键词：

PARTICLE-PRODUCTION; HARD-SCATTERING; PION-PRODUCTION; MOMENTUM;

D O I：

10.1103/PhysRevLett.123.122001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the nuclear dependence of transverse single-spin asymmetries (TSSAs) in the production of positively charged hadrons in polarized p(up arrow) + p, p(up arrow) + Al, and p(up arrow) + Au collisions at root s(NN) = 200 GeV. The measurements have been performed at forward rapidity (1.4 < eta < 2.4) over the range of transverse momentum (1.8 < p(T) < 7.0 GeV/c) and Feynman x (0.1 < x(F) < 0.2). We observed positive asymmetries for positively charged hadrons in p(up arrow) + p collisions, and significantly reduced asymmetries in p(up arrow) + A collisions. These results reveal a nuclear dependence of TSSAs for charged-hadron production in a regime where perturbative techniques are applicable. These results provide new opportunities to use p(up arrow) + A collisions as a tool to investigate the rich phenomena behind TSSAs in hadronic collisions and to use TSSAs as a new handle in studying small-system collisions.

引用

页数：9

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