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Brazilian Journal of Physics

Print version ISSN 0103-9733On-line version ISSN 1678-4448


SZPIGEL, S.; DURAES, F. O.  and  STEFFENS, F. M.. Contribution from Drell-Yan processes to the emission spectrum in solar flares. Braz. J. Phys. [online]. 2007, vol.37, n.1a, pp.52-55. ISSN 0103-9733.

The recent discovery of a new and intense solar flare radiation spectral component with a maximum in the terahertz range has raised a great deal of interest. The origin of this component is still unknown, constituting a problem that goes beyond the application of canonical models used to describe the well-known microwave spectrum. In this work, we present preliminary results on the investigation of a possible contribution from electron-positron pairs produced in a Drell-Yan process to the emission of the terahertz component observed in solar flares.

Keywords : Drell-Yan processes; Solar emission spectrum; Terahertz component.

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