Monday, 2 May 2011

Antimatter!

I love experimental particle physics papers. They have so many authors! The STAR experiment at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory recently created some anti-helium-4 nuclei. 18 of them, in fact. The effort took no less than 395 authors (+/- 10 or so).

They made the anti-helium nuclei by colliding gold atoms at ridiculously high speeds and detected them in this thing:


They call their detector the Time Projection Chamber. That's the other cool thing about particle accelerator experiments: cool names! I feel inspired to come up with cool names for bits of my experiment, because the current terminology is a bit lackluster. In reality I have "magneto-optical trap" and "science cell", but really something like "atomic decelerator" and "atom interrogation chamber" could make it seem more exciting, or something that makes a cool acronym, like HERCULES or GUNDAM.

Any suggestions? There are lasers and magnetic fields involved, if that helps!

2 comments:

  1. ...395 authors? How on earth does that work?

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  2. Particle accelerators are massively complex and require a lot of people to design, build, and operate them, and also people to analyze data. Most of these people are university researchers and students. They all get a piece of the pie when papers get published!

    In practice, I don't know how that many people coordinate writing a paper!

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