ðə dɪzˈaɪɚd ᵻvˈɛnts ɑːɹ tˈɪpɪkli ɐkˈʌmpənid baɪ ʌnwˈɔntᵻd bˈækɡɹaʊnd pɹˈɑːsɛsᵻz ðæt mˈʌst biː səpɹˈɛst baɪ ɪnˈoːɹməs fˈæktɚz, ɹˈeɪndʒɪŋ fɹʌm θˈaʊzəndz tə mˈɛni bˈɪliənz, tə pɚmˈɪt ðə dɪzˈaɪɚd sˈɪɡnəlz təbi dɪtˈɛktᵻd ænd stˈʌdid.
The desired events are typically accompanied by unwanted background processes that must be suppressed by enormous factors, ranging from thousands to many billions, to permit the desired signals to be detected and studied.