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Experimental investigation of high-energy photon splitting in atomic fields |
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| Authors: | Akhmadaliev Sh Zh Kezerashvili G Ya Klimenko S G Lee R N Malyshev V M Maslennikov A L Milov A M Milstein A I Muchnoi N Yu Naumenkov A I Panin V S Peleganchuk S V Pospelov G E Protopopov I Ya Romanov L V Shamov A G Shatilov D N Simonov E A Strakhovenko V M Tikhonov Yu A |
| Affiliation: | Budker Institute of Nuclear Physics, Novosibirsk, 630090, Russia. |
| Abstract: | Data analysis of an experiment in which photon splitting in atomic fields was observed is presented. The experiment was performed at the tagged photon beam of the ROKK-1M facility at the VEPP-4M collider. In the energy region of 120-450 MeV, statistics of 1.6x10(9) photons incident on the BGO target was collected. About 400 candidate photon-splitting events were reconstructed. Within the attained experimental accuracy, the experimental results are consistent with the calculated exact atomic-field cross section. The predictions obtained in the Born approximation differ significantly from the experimental results. |
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