Large analyzing power in inclusive π± production at high xF with a 22-GeV/c polarized proton beam

K Krueger ,H Huang ,N.i Belikov ,Hisakazu Sakai ,H Sato ,N Saito ,G Bunce ,Naoki Hayashi ,Yu A Matulenko ,H M Spinka ,Y Goto ,D G Underwood ,V Baturine ,T Roser ,K Imai ,A A Derevschikov ,H En’yo ,Y Nakada ,A Ogawa ,Y I Makdisi ,S.y Lee ,M Syphers ,A I Pavlinov ,H Okamura ,L V Nogach ,Masanobu Nakamura ,S B Nurushev ,C Allgower ,M Okamura ,Mei Bai ,T Wakasa ,T Ichihara ,G Igo ,Yoshihiko Kondo ,S Trentalange ,A Yokosawa ,V Ghazikhanian ,T Kasprzyk ,A Vasiliev ,C Whitten

doi:10.1016/s0370-2693(99)00677-2

Large analyzing power in inclusive π± production at high xF with a 22-GeV/c polarized proton beam

K Krueger , H Huang + Show 38 more

https://doi.org/10.1016/s0370-2693(99)00677-2

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Journal: Physics Letters B	Publication Date: Jul 1, 1999
Citations: 72

Affiliation: Argonne National Laboratory, Brookhaven National Laboratory, Institute for High Energy Physics, Indiana University Bloomington, Pennsylvania State University

#Inclusive Charged-pion Production #High xF + Show 8 more

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Abstract

The analyzing power, AN, in inclusive charged-pion production has been measured using a ∼22-GeV/c transversely-polarized proton beam on a carbon target. A large AN was found for xF>0.5 and for 0.6<pT<1.2 GeV/c, with similar magnitudes and opposite sign for π+ and π−. This mirror behavior and the magnitudes are similar to π± production from 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.

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