Double parton scattering inpp collisions at $$\sqrt s = 63$$ GeV
Åkesson, T. ; Albrow, M. G. ; Almehed, S. ; Benary, O. ; Bøggild, H. ; Botner, O. ; Breuker, H. ; Carter, A. A. ; Carter, J. R. ; Choi, Y. ; Cleland, W. E. ; Dagan, S. ; Dahl-Jensen, E. ; Dahl-Jensen, I. ; Damgaard, G. ; Fabjan, C. W. ; Goerlach, U. ; Hansen, K. H. ; Hedberg, V. ; Jarlskog, G. ; Katsanevas, S. ; Kjaer, N. J. ; Kroeger, R. ; Kulka, K. ; Lissauer, D.
Springer
Published 1987
Springer
Published 1987
| ISSN: |
1434-6052
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|---|---|
| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
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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| Type of Medium: |
Electronic Resource
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| URL: |