But the Nobel Foundation’s limit of three recipients per prize, each of whom must still be living, has long been outgrown by the collaborative nature of modern research—as will be demonstrated by the inevitable row over who is ignored when it comes to acknowledging the discovery of the Higgs boson.

【答】要想知道：when 引导的时间状语从句，修饰的是“as will be demonstrated”还是“who is ignored”？关键要分析出as后面整个句子的意思：

as will be demonstrated by the inevitable row over who is ignored when it comes to acknowledging the discovery of the Higgs boson.

【分析】按传统语法理解，as 是关系代词，指代前文所述的内容，一般译为“这正如...所证明的那样”，或者“这一点被...所证明”。

关键词语解释：

1. as 指代前文所述的内容，译为“这个问题；这一点 ”。

2. be demonstrated：被证明；被证实

3. by the inevitable row：被不可避免的争论

4. over：对于；关于，等于about。over 的宾语从句是 who is ignored when it comes to acknowledging the discovery of the Higgs boson.

5. when it comes to：当提到...；当涉及...；当谈及...；当讨论...

从修饰关系和意思来看，when it comes to acknowledging the discovery of the Higgs boson，明显是修饰who is ignored 的。严格的说，是修饰谓语is ignored 的。as 从句实际是举例说明：当涉及确认...这个发现时，谁被忽略不能受奖的问题。因为该发现是长期以来多个物理学家的成果，不止3人。

【翻译】as will be demonstrated by the inevitable row over who is ignored when it comes to acknowledging the discovery of the Higgs boson. 这一点被不可避免的争论所证实，争论是围绕确认希格斯玻色子的发现时，谁被忽略不能得奖的问题。