This editorial presents the quantum field theoretic ambiance in which Elko and mass dimension one fermions come to exist. This may serve not only to introduce Elko, and the associated quantum field, but it may also open a door to a new class of spin one half fermions and bosons. These new particles, as it will be argued in this volume, are first-principle candidates for dark matter.

中文翻译：

---

埃尔科和质量维一费米子

这篇社论介绍了其中存在Elko和质量维一费米子的量子场理论氛围。这不仅可以用来引入Elko以及相关的量子场，而且还可以为一类新的自旋半费米子和玻色子打开一扇门。这些新粒子，如本卷中将论证的那样，是暗物质的第一原理候选者。