Physics

Guest Post: Vladimir Khachatryan, The Higgs Mass From The Four-Colour Theorem

Ashay Dharwadker is the founder and director of the Institute of Mathematics, Gurgaon, India. He is interested in fundamental research in mathematics, particularly in algebra, topology, graph theory and their applications to computer science and high ener ...

Article - Tommaso Dorigo - Jul 25 2010 - 8:41am

Who knows what a unitary transform is

I thought that I knew what a unitary transform is, until I started thinking about it. (2^n-ons are hypercomplex numbers that are related via the 2^n-on construction. Including n=3 the 2^n-on construction gives the same numbers as the Cayley-Dickson constr ...

Blog Post - Hans van Leunen - Jul 26 2010 - 5:10am

W And Z Boson Physics Results From CMS

The parallel sessions at the international conference on High-Energy Physics in Paris are over, and it is time for a summary of results. Of course if you are following the conference you will get it from the summary talks, but if you prefer some armchair, ...

Article - Tommaso Dorigo - Jul 26 2010 - 9:30pm

Dynamic quantum logic

Dynamic quantum logic Abstract ...

Blog Post - Hans van Leunen - Jul 27 2010 - 5:19am

Plot Of The Week: A Lovely Dimuon Mass Spectrum

While everybody is busy discussing the latest Tevatron results on the Higgs boson searches-is that the light-mass excess the internet was abuzz, is it consistent with a signal as we expected it, how long will it take to confirm it is not a fluke, etcetera, ...

Article - Tommaso Dorigo - Jul 27 2010 - 2:44pm

Heisenberg's Uncertainty Principle Only Mostly Uncertain?

Werner Heisenberg's ' Uncertainty Principle '(1927) is a fundamental concept in quantum physics, basically saying you can be increasingly accurate in position or momentum (mass X velocity), but not both(1).   This can be an important featur ...

Article - News Staff - Jul 27 2010 - 9:40am

The CMS Momentum Scale From J/Psi Decays

While the focus of the international conference in high-energy physics in Paris last week has been on the search for new physics and the precise measurement of standard model quantities, I will offer to you today something more technical, but in no way les ...

Article - Tommaso Dorigo - Jul 30 2010 - 12:31am

Global Electroweak Fits, Summer 2010

After the issuing of new top mass results by the Tevatron experiments, it is time for another look at global electroweak fits of standard model observables. The Gfitter group has produced new fits for the standard model in search of the most probable value ...

Article - Tommaso Dorigo - Aug 1 2010 - 3:25am

A possible way to simulate inflation.

 Simmulating aspects of the big bang in a particle accelerator through the coulomb explosion of a sufficiently dense bundle of fundamental particles could be practical and informative.  Suppose a team of particle physicist figure out a way to get a bunch o ...

Blog Post - Hontas Farmer - Aug 2 2010 - 9:42pm

How To Count A Black Hole

Imagine you are tasked to build the ultimate computer memory. You are provided with an unlimited budget and all the resources you need.  How big a memory capacity could you build?  ...

Article - Johannes Koelman - Aug 3 2010 - 9:57am