A “using the cathedral-size ATLAS and CMS detectors,”– (lines 14-15) has as its subject “the spokespeople of the collaboration”.
B "and other phenomena”– (line 16) has a word whose plural form is phenomenon.
C “based on analyses of the data collected to date.”– (lines 19-20) means the analyses collected up to that time.
D “it does promise to be interesting”– (lines 20-21) has an auxiliary verb used for emphasis.
E 'have seen hints of the elusive Higgs boson”– (lines 22-23) has words whose synonyms are respectively cues and obscure.