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Investigation of proton-proton short-range correlations via the 12C(e,e'pp) reaction |
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| Authors: | Shneor R Monaghan P Subedi R Anderson B D Aniol K Annand J Arrington J Benaoum H Benmokhtar F Bertin P Bertozzi W Boeglin W Chen J P Choi Seonho Chudakov E Cisbani E Craver B de Jager C W Feuerbach R J Frullani S Garibaldi F Gayou O Gilad S Gilman R Glamazdin O Gomez J Hansen J-O Higinbotham D W Holmstrom T Ibrahim H Igarashi R Jans E Jiang X Jiang Y Kaufman L Kelleher A Kolarkar A Kuchina E Kumbartzki G LeRose J J Lindgren R Liyanage N Margaziotis D J Markowitz P Marrone S Mazouz M Meekins D Michaels R Moffit B Nanda S Perdrisat C F Piasetzky E Potokar M Punjabi V Qiang Y Reinhold J Reitz B |
| Affiliation: | Tel Aviv University, Tel Aviv 69978, Israel. |
| Abstract: | We investigated simultaneously the 12C(e,e'p) and 12C(e,e'pp) reactions at Q2=2 (GeV/c)2, xB=1.2, and in an (e, e'p) missing-momentum range from 300 to 600 MeV/c. At these kinematics, with a missing momentum greater than the Fermi momentum of nucleons in a nucleus and far from the delta excitation, short-range nucleon-nucleon correlations are predicted to dominate the reaction. For (9.5+/-2)% of the 12C(e,e'p) events, a recoiling partner proton was observed back-to-back to the 12C(e,e'p) missing-momentum vector, an experimental signature of correlations. |
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