Date: 14/05/2015 18:24:06
From: CrazyNeutrino
ID: 722658
Subject: CERN discovery backs physics' Standard Model

CERN discovery backs physics’ Standard Model

After a nearly three-decade quest, scientists report they have detected a tell-tale change in a sub-atomic particle, further backing a key theory about the Universe.

Researchers at the world’s biggest particle collider said they had observed an extremely rare event — the decay of the neutral B meson into a pair of muons, the heavy cousins of electrons.

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Date: 15/05/2015 20:08:49
From: mollwollfumble
ID: 723291
Subject: re: CERN discovery backs physics' Standard Model

> the transition into muons only occurs about four times in every billion “decays.”

Follow on question for physicists.

Why does the standard model of particle physics predict that the B meson decays into a pair of muons about four times in every billion decays?

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