A model for straight and helical solar jets - II. Parametric study of the plasma beta E. Pariat, K. Dalmasse, C. R. DeVore, S. K. Antiochos and J. T. Karpen A&A, 596 (2016) A36 Published online: 25 November 2016 DOI: 10.1051/0004-6361/201629109