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. 2015 Jun 20;75(6):269. doi: 10.1140/epjc/s10052-015-3471-0

Fig. 4.

Fig. 4

Measurement of the a energy-energy correlation Ω and bd thrust observables T1,2,3 with the Pierre Auger Observatory (red squares and error bars). The measurements are compared to distributions without structure in the arrival directions of UHECRs (gray distributions)