Münster 2002 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 7: Instrumentation and Applications I

HK 7.7: Talk

Monday, March 11, 2002, 18:30–18:45, F

Feasability study of spin correlations in ²He (¹S₀) — •J. Heyse¹, C. Bäumer², A.M. van den Berg³, E.L. Bolster⁴, J.A. Brooke⁵, P. Busch⁴, M. Hagemann¹, M.N. Harakeh³, M.A. de Huu³, C. Polachic⁵, C. Rangacharyulu⁵, and H.J. Wörtche³ — ¹Vakgroep Subatomaire en Stralingsfysica, Universiteit Gent, Belgium — ²Westfälische Wilhems-Universität Münster — ³Kernfysisch Versnellerinstituut, Rijksuniversiteit Groningen, The Netherlands — ⁴University of Hull, United Kingdom — ⁵Univeristy of Saskatchewan, Canada

We present results of a feasability study for examining the Einstein-Podolsky-Rosen type spin correlations of protons in a ¹S₀ intermediate state. A deuteron beam of 170 MeV was extracted from the AGOR-cyclotron at KVI, producing protons in a ¹²C(d,²He)¹²B reaction populating the ground state of ¹²B. The coincident measurement of the proton momenta and spin-correlations was performed by means of the Big-Bite Spectrometer and the EuroSuperNova detector. The experiment opts for a precision test of quantum mechanical predictions versus Bell’s inequalities.