Test of Scale Invariance in Ratios of Muon Scattering Cross Sections at 150 and 56 GeV
- 6 October 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 35 (14), 898-901
- https://doi.org/10.1103/physrevlett.35.898
Abstract
Scale invariance is tested in ratios of muon scattering cross sections from an iron target at pairs of q2 values ranging to 40 (GeV/c)2 and differing by a factor of 38. The apparatus was changed with incident energy to preserve acceptance and resolution in scaled variables. The scale-noninvariant departure from unity of these ratios displays a statistically significant ω dependence. The effect exceeds the systematic uncertainty by a factor of 1.7.Keywords
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