PDA

View Full Version : New Estimate for the Mass of Higgs Boson



Fraser
2005-Sep-07, 07:28 PM
SUMMARY: Since its existence was first theorized in the 1960s, scientists have been searching for the mysterious Higgs boson. This subatomic particle is believed to be responsible for mass, and would help explain why objects feel inertia and have momentum. Unfortunately, physicists were unable to find the particle in the 1990s using the world's largest atom smashers. A new estimate for the particle's mass from Berkeley Lab explains why it might have eluded discovery. Fortunately, CERN's new Large Hadron Collider, due to start up in 2007 should have the ability to find the Higgs particle at a heavier mass.

View full article (http://www.universetoday.com/am/publish/new_estimate_mass_higgs_boson.html)
What do you think about this story? post your comments below.

publiusr
2005-Sep-07, 07:34 PM
The last episode of LEXX dealt with that IIRC

Fortunate
2005-Sep-07, 11:29 PM
What is the lowest energy product set that might include the production of a Higgs Boson? How many GEV would this reaction require? Thank you.

Fortunate
2005-Sep-08, 05:24 PM
Well, now it is what used to be called "tomorrow," and I still don't have an answer. Maybe I'll post an improved version of this question on "Ask the Experts."

Blob
2007-Mar-02, 05:18 PM
If the blips in the debris of the Tevatron particle smasher really are signs of the Higgs boson then it's not what we expected. It might mean that it's time to replace the standard model with a more complex picture of the universe
On 9 December last year, as John Conway looked at the results of his experiment, a chill ran down his neck....
Read more (http://www.newscientist.com/channel/fundamentals/mg19325934.600?DCMP=NLC-nletter&nsref=mg19325934.600)

See also
http://www.bautforum.com/showthread.php?t=52006
http://www.bautforum.com/showthread.php?t=32324

antoniseb
2007-Mar-02, 09:56 PM
I saw New Scientists coverage of this story. It will be interesting to see how this develops over the next couple of years. If it brings more evidence for next-to-minimal Supersymmetry, then it may also bring evidence for neutralinos (which may be a large fraction of the cold dark matter).

trinitree88
2007-Mar-04, 05:08 PM
I disagree. Tau leptons can also be created in pairs by the massive Z boson....it can be any pair of particles. Amongst those pairs is a W+, W- pair. With a mass each of ~ 80.2 Gev/c2, that's the 160 Gev/ c2 resonance seen in the article. The Z can fluctuate as it travels to any pair of particles, so you can see a resonance at ~ 160.4 Gev/ c2, due to W pairs being created, but they can then decay as heavy leptons (taus), by annihilating and converting back to tau/anti-tau. So it is not evidence of a new particle.
The prediction that one form of the Z can act as the graviton and potentially unify physics was originally made by Nobel Laureate George Gamow in the 60's, in his Harvard Project Physics Reader, "Gravity", Doubleday. It's incorporation in the Standard Model was done in 1982, and requires no Higgs, only the Z0. Occam's Razor. Pete.