نتایج جستجو برای: scattering photon

تعداد نتایج: 177718  

Journal: :Physical review letters 2002
M J van Goethem L Aphecetche J C S Bacelar H Delagrange J Díaz D d'Enterria M Hoefman R Holzmann H Huisman N Kalantar-Nayestanaki A Kugler H Löhner G Martínez J G Messchendorp R W Ostendorf S Schadmand R H Siemssen R S Simon Y Schutz R Turrisi M Volkerts V Wagner H W Wilschut

Photon energy spectra up to the kinematic limit have been measured in 190 MeV proton reactions with light and heavy nuclei to investigate the influence of the multiple-scattering process on the photon production. Relative to the predictions of models based on a quasifree production mechanism, a strong suppression of bremsstrahlung is observed in the low-energy region of the photon spectrum. We ...

2008
Daniele Tommasini Albert Ferrando Humberto Michinel

We review the theory for photon-photon scattering in vacuum, and some of the proposals for its experimental search, including the results of our recent works on the subject. We then describe a very simple and sensitive proposal of an experiment and discuss how it can be used at the present (HERCULES) and the future (ELI) ultrahigh power laser facilities either to find the first evidence of phot...

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