Physics

Have A Virtual Tour Of CDF Control Room!

A Labor Day special: I am offering you to have a short virtual tour of the CDF Control Room today, free of charge. I am currently on shift there, and we are taking data. If you send me an email with your skype account coordinates, I will call you and show ...

Blog Post - Tommaso Dorigo - Sep 6 2010 - 9:48am

A Bare Bones Vision On The Origin Of Physical Dynamics

I like to guide your attention to the work of Denis Sciama who in his article "On the origin of inertia" (see reference below) has put a very interesting view not only on the origin of inertia, but also on the origin of gravity. His approach is o ...

Article - Hans van Leunen - Sep 9 2010 - 10:59am

All From Zilch: Much Ado About Nothing

Bantam Books must be happy. Prior to going on sale, Stephen Hawking's* new book 'The Grand Design' has attracted considerable media attention. (See for instance:  CNN, BBC, Yahoo, Telegraph, and LA Times.) What's this fuzz all about?  ...

Article - Johannes Koelman - Sep 27 2010 - 9:53am

No Quirks, Says DZERO

No, it is not a typo. I do mean "quirks": these are hidden-valley brothers of quarks predicted to exist in some fancy new physics scenarios. These particles have been sought by the DZERO experiment in a large dataset of proton-antiproton collisio ...

Article - Tommaso Dorigo - Sep 7 2010 - 4:40pm

The Space-Plunger

Sean Carroll writes that in GR “spacetime can give energy to matter, or absorb it from matter, so that the total energy simply isn’t conserved”. He hopefully means “space” not “space-time”, because space-time includes time and has no further time to do any ...

Blog Post - Sascha Vongehr - Mar 25 2018 - 4:13am

Physicists Really Roll The Dice With Quantum Random Number Generator

To physicists, nothing is really a coincidence.   Even cats in quantum boxes can be explained in mathematical terms, not to mention roulette or the success or failure of an attack in Dungeons&Dragons, but researchers at the Max Planck Institute for the ...

Article - News Staff - Sep 9 2010 - 11:22am

If The Fine-Structure Constant Varies, Then The Laws Of Physics Throughout The Universe Do Too

What happens to the laws of physics if a fundamental constant turns out to be not a constant after all?   The 'magic number' known as the fine-structure constant, called 'alpha' by physicists,  appears to vary throughout the universe, a ...

Article - News Staff - Sep 10 2010 - 1:27am

On W+4 Jet Rates At The LHC

A very important new theoretical study appeared yesterday in the hep-ph preprint arxiv. Titled " Precise Predictions on W+4 Jet Production at the Large Hadron Collider ", it is signed by a strong team of theorists: C. Berger, Z. Bern, L. Dixon, F ...

Blog Post - Tommaso Dorigo - Sep 14 2010 - 3:41pm

Don't Stop The Presses: Energy Conservation Law Questioned

Does my space-plunger sound profound?  It isn’t.  That space absorbs energy is confusing talk.  You could desperately try to make it work:  Firstly, the “space-plunger” is not moving slowly and the energy lost is partially recovered in the kinetic energy o ...

Article - Sascha Vongehr - Mar 25 2018 - 4:05am

W Plus Multijet Production Pinned Down

A very important new theoretical study has appeared last Tuesday in the hep-ph preprint arxiv. Titled "Precise Predictions on W+4 Jet Production at the Large Hadron Collider", it is signed by a strong team of theorists: C. Berger, Z. Bern, L. Dix ...

Article - Tommaso Dorigo - Sep 21 2010 - 4:37am