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Why no luminosity in Alice

Posted: Sun Sep 26, 2010 3:11 am
by gronos
While the other detectors currently seem to have luminosities of 16 or more, Alice has none. Is it due to the specific beam type and profile?


Re: Why no luminosity in Alice

Posted: Tue Sep 28, 2010 5:08 am
by Gnarf
Basically, yes.

ALICE ist not that much interested in a huge rate of collisions from feeble protons.
It eagerly awaits the fewer collisions of heavy garbage trucks ("lead ions"), each giving a big firework of particles.

So, to keep the detectors from being overwhelmed by the high proton collision rate, they asked for lower luminosity, going for more quality than quantity.