Dependence of the 12C (over(γ, →), pd) reaction on photon linear polarisation

D. P. Watts*, J. R M Annand, R. Beck, D. Branford, D. I. Glazier, P. Grabmayr, K. Livingston, I. J D MacGregor, J. C. McGeorge, R. O. Owens, G. Rosner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The sensitivity of the 12C (over(γ, →), pd) reaction to photon linear polarisation has been determined at MAMI, giving the first measurement of the reaction for a nucleus heavier than 3He. Photon asymmetries and cross sections were measured for Eγ = 170 to 350 MeV. For Eγ below the Δ resonance, reactions leaving the residual 9Be near its ground state show a positive asymmetry of up to 0.3, similar to that observed for 3He suggesting a similar reaction mechanism for the two nuclei.

Original languageEnglish
Pages (from-to)88-92
Number of pages5
JournalPhysics Letters B
Issue number2-3
Publication statusPublished - 5 Apr 2007


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