Abstract
In a study ofpp collisions at\(\sqrt s = 63\) GeV with more than 29 GeV total transverse energy emitted into 1.8 units of rapidity in the central region, we have extracted a sample of 4-jet events and compared it with models of the two sources of 4-jet production: double bremsstrahlung and double parton scattering. The data cannot be described by bremsstrahlung alone, and we extract the fraction of 4-jet events attributed to double parton scattering for various definitions of the 4-jet sample. We determine the double parton scattering/2-jet yield ratio, and this leads to a determination of the proton radius. We discuss the implications of our observations for the general understanding of high-ΣE T events.
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The Axial Field Spectrometer Collaboration., Åkesson, T., Albrow, M.G. et al. Double parton scattering inpp collisions at\(\sqrt s = 63\) GeV. Z. Phys. C - Particles and Fields 34, 163–174 (1987). https://doi.org/10.1007/BF01566757
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DOI: https://doi.org/10.1007/BF01566757