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Large analyzing power in inclusive pi(+/-) production at high x(F) with a 22-GeV/c polarized proton beam

Authors

Krueger, K Allgower, C Kasprzyk, T Spinka, H Underwood, D Yokosawa, A Bunce, G Huang, H Makdisi, Y Roser, T Syphers, M Belikov, NI Derevschikov, AA Matulenko, YA Nogach, LV Nurushev, SB Pavlinov, AI Vasiliev, AN Bai, M Lee, SY Goto, Y Hayashi, N Ichihara, T Okamura, M Saito, N En'yo, H Imai, K Kondo, Y Nakada, Y Nakamura, M Sato, HD Okamura, H Sakai, H Wakasa, T Baturine, V Ogawa, A Ghazikhanian, V Igo, G Trentalange, S Whitten, C

Citation

K. Krueger et al., Large analyzing power in inclusive pi(+/-) production at high x(F) with a 22-GeV/c polarized proton beam, PHYS LETT B, 459(1-3), 1999, pp. 412-416

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICS LETTERS B

ISSN journal

03702693 → ACNP

Volume

459

Issue

1-3

Year of publication

1999

Pages

412 - 416

Database

ISI

SICI code

0370-2693(19990722)459:1-3<412:LAPIIP>2.0.ZU;2-E

Abstract

The analyzing power, A(N), in inclusive charged-pion production has been me asured using a similar to 22-GeV/c transversely polarized proton beam on a carbon target. A large A(N) was found for x(F) > 0.5 and for 0.6 < p(T) < 1 .2 GeV/c, with similar magnitudes and opposite sign for pi(+) and pi(-). Th is mirror behavior and the magnitudes are similar to pi(+/-) production fro m 200-GeV/c polarized protons on a hydrogen target. The analyzing power for inclusive proton production has also been measured and is consistent with zero. (C) 1999 Published by Elsevier Science B.V. All rights reserved.