Dec. 18th, 2009

Smile!

Dec. 18th, 2009 04:35 pm
maxwells_daemon: (Dr Bunsen)
Here's how we feel about all the beautiful collision data ATLAS has taken over the last few weeks.

ATLAS Armenteros Plot

(This is an "Armenteros Plot" of -pT+ vs (pL+ - pL-) / (pL+ + pL-) (where pT and pL are the momenta (of the positive/negative daughter), respectively transverse and longitudinal to the decaying particle's direction), and shows the decays of K0s (in the smile) and Λs (right eye) and anti-Λs (left eye). It was included in today's ATLAS Report on first collision data, though in a less cheerful form.)

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