The Arches cluster revisited - II. A massive eclipsing spectroscopic binary in the Arches clusterM. E. Lohr, J. S. Clark, F. Najarro, L. R. Patrick, P. A. Crowther and C. J. EvansA&A, 617 (2018) A66DOI: https://doi.org/10.1051/0004-6361/201832670