Charge symmetry breaking in $\mathrm{\Lambda }$ hypernuclei: updated HYP 2015 progress report

Ongoing progress in understanding and evaluating charge symmetry breaking in $\mathrm{\Lambda }$ hypernuclei is discussed in connection to recent measurements of the ${}_{\mathrm{\Lambda }}^4\mathrm{H}(0_{\mathrm{g}\mathrm{.}\mathrm{s}\mathrm{.}}^{+})$ binding energy at MAMI [A1 Collaboration: PRL 114 (2015) 232501] and of the ${\Lambda}^{4}{\rm He}(1^+{\rm exc})$ excitation energy at J-PARC [E13 Collaboration: PRL 115 (2015) 222501].