Elsevier

Physics Letters B

Volume 434, Issues 1–2, 20 August 1998, Pages 21-27
Physics Letters B

Measurement of the tensor analyzing power Ayy in inclusive breakup of 9 GeV/c deuterons on carbon at large transverse momenta of protons

https://doi.org/10.1016/S0370-2693(98)00733-3Get rights and content

Abstract

The tensor analyzing power Ayy in inclusive breakup of 9 GeV/c deuterons on carbon has been measured at the detected proton angle of 85 mr. The analyzing power remains positive at the highest measured momentum of the proton in definite contradiction with the predictions of the existing models. The vector analyzing power Ay has been obtained simultaneously with Ayy.

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Acknowledgements

The authors are grateful to the accelerator staff and POLARIS team, to L.V. Budkin, E.A. Kolesnikova, P.P. Korovin, V.G. Perevozchikov, E.V. Ryzhov and A.I. Shirokov for their help, to V.V. Glagolev, N.B. Ladygina, Yu.A. Panebratsev, C.F. Perdrisat, S.S. Shimansky and M.V. Tokarev for useful discussions. The investigation was supported in part by the Russian Foundation for Basic Research under grants No 95-02-05070, No 96-02-17207 and No 96-02-17208, by Toyota Foundation and Daikou Foundation.

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