...

Supported by CAPES Foundation, Ministry of Education of Brazil.

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...

Now at CERN, Geneva, Switzerland.

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...

Now at CENBG, Gradignan, France.

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... France

UMR 7164 (CNRS, Université Paris VII, CEA, Observatoire de Paris)

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... HESS

The value $0.112^{\circ }$ comes from a cut on the squared angular distance of $0.0125~{\rm deg}^{2}$ used in the standard HESS analysis.

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... flux

f(E) = E ² F(E).

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