Double Spin Asymmetries of Inclusive Hadron Electroproductions from a Transversely Polarized ³rm{He} Target

The Jefferson Lab Hall A Collaboration: Y.X. Zhao , K. Allada , K. Aniol , J.R.M. Annand , T. Averett , F. Benmokhtar , W. Bertozzi , P.C. Bradshaw

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P. Bosted A. Camsonne M. Canan G.D. Cates C. Chen J.-P. Chen W. Chen K. Chirapatpimol E. Chudakov E. Cisbani J.C. Cornejo F. Cusanno M. Dalton W. Deconinck C.W.de Jager R. De Leo X. Deng A. Deur H. Ding P. A. M. Dolph C. Dutta D. Dutta L. El Fassi S. Frullani H. Gao F. Garibaldi D. Gaskell S. Gilad R. Gilman O. Glamazdin S. Golge L. Guo D. Hamilton O. Hansen D.W. Higinbotham T. Holmstrom J. Huang M. Huang H. F Ibrahim M. Iodice X. Jiang G. Jin M.K. Jones J. Katich A. Kelleher W. Kim A. Kolarkar W. Korsch J.J. LeRose X. Li Y. Li R. Lindgren N. Liyanage E. Long H.-J. Lu D.J. Margaziotis P. Markowitz S. Marrone D. McNulty Z.-E. Meziani R. Michaels B. Moffit C. Mu\~noz Camacho S. Nanda A. Narayan V. Nelyubin B. Norum Y. Oh M. Osipenko D. Parno J.-C. Peng S. K. Phillips M. Posik A. J. R. Puckett X. Qian Y. Qiang A. Rakhman R. Ransome S. Riordan A. Saha B. Sawatzky E. Schulte A. Shahinyan M. H. Shabestari S. \v{S}irca S. Stepanyan R. Subedi V. Sulkosky L.-G. Tang W. A. Tobias G. M. Urciuoli I. Vilardi K. Wang B. Wojtsekhowski Y. Wang X. Yan H. Yao Y. Ye Z. Ye L. Yuan X. Zhan Y. Zhang Y.-W. Zhang B. Zhao X. Zheng L. Zhu X. Zhu X. Zong

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classification ⚛️ nucl-ex hep-exhep-ph

keywords asymmetriespolarizedtargettexttransverselyhadronsinclusivemomentum

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We report the measurement of beam-target double-spin asymmetries ($A_\text{LT}$) in the inclusive production of identified hadrons, $\vec{e}~$+$~^3\text{He}^{\uparrow}\rightarrow h+X$, using a longitudinally polarized 5.9 GeV electron beam and a transversely polarized $^3\rm{He}$ target. Hadrons ($\pi^{\pm}$, $K^{\pm}$ and proton) were detected at 16$^{\circ}$ with an average momentum $<$$P_h$$>$=2.35 GeV/c and a transverse momentum ($p_{T}$) coverage from 0.60 to 0.68 GeV/c. Asymmetries from the $^3\text{He}$ target were observed to be non-zero for $\pi^{\pm}$ production when the target was polarized transversely in the horizontal plane. The $\pi^{+}$ and $\pi^{-}$ asymmetries have opposite signs, analogous to the behavior of $A_\text{LT}$ in semi-inclusive deep-inelastic scattering.

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Double Spin Asymmetries of Inclusive Hadron Electroproductions from a Transversely Polarized ³rm{He} Target

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