All 2 entries tagged Neutrino

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August 21, 2007

PEBBLE is Alive!

In other news, we may have spent a while filling a whiteboard with text, but the project now works! We can generate one million double beta decay events, complete with energies and angular distributions, in a little over a minute (on a 1.86GHz processor).

Today we’re going to tidy the code up a bit and complete all the documentation, then we can turn it into a library and interface with other peoples code, such as the CERN GEANT4 package, which will allow us to track the motion of the particles our program generates, as they pass through various detector materials.


August 03, 2007

0vßß Event Generator – Week 5

Week five in the physics cave (literally – our office has no windows!) and we’ve made significant progress. For those of you reading this who forgot what it is we’re doing, the task is to create a program which simulates double-beta (ßß) decay events and produces a list of energies and angular distributions of the resultant particles.

The last few weeks involved implementing lots of helper functions and classes; numeric integration, a four-vector, various classes to represent different kinds of particles, and other associated trickery. This week, we started the biggest single part of the program; the event generation functionality itself.

At the start of this week we hoped to have this finished by today; unfortunately that did not happen! We’re getting close, though. Understanding what we have to do is half the task!

We’ve also named our project PEBBLE – momentum(p)-Energy ßß (double-Beta) Leptonic Event!


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