Geneva, 5 March 2012. Results presented by the LHCb collaboration this evening at the annual ‘Rencontres de Moriond’ conference, held this year in La Thuile, Italy, have put one of the most stringent limits to date on the current theory of particle physics, the Standard Model. LHCb tests the Standard Model by measuring extremely rare… [Read more…]
December 23, 2011
W.-D. Schlatter (CERN), P. M. Zerwas (DESY) After a brief introduction to the theoretical basis of the Higgs mechanism for generating the masses of elementary particles, the experimental searches for Higgs particles will be summarized, from bounds at LEP to inferences for LHC. The report will focus on the Standard Model, though some central results… [Read more…]
December 22, 2011
The Large Hadron Collider (LHC) on the Franco-Swiss border has made its first clear observation of a new particle since opening in 2009. Known as Chi-b (3P), it is a boson – the label given to particles that can carry the forces of nature. The as-yet unpublished discovery isreported on the Arxiv pre-print server. The… [Read more…]
October 31, 2011
Geneva, 31 October 2011. After some 180 days of running and four hundred trillion (4×1014) proton proton collisions, the LHC’s 2011 proton run came to an end at 5.15pm yesterday evening. For the second year running, the LHC team has largely surpassed its operational objectives, steadily increasing the rate at which the LHC has delivered… [Read more…]
October 9, 2011
For almost 20 years, Bill Murray has been hunting the Higgs boson, the elusive subatomic particle that is thought to give mass to the basic building blocks of nature. In those two decades, the 45-year-old Edinburgh-born researcher has watched the search for the holy grail of physics narrow to a tighter and tighter group of… [Read more…]
October 8, 2011
LHSee: discover what happen at the LHC. Want to find out how to Hunt the Higgs Boson using your phone? Ever wondered how the Large Hadron Collider experiments work, and what the collisions look like? Scientists at the world’s biggest scientific experiment – the Large Hadron Collider at CERN, Geneva – are trying to answer… [Read more…]
September 29, 2011
CERN’s Large Hadron Collider is finally up and running, but the lab is already planning an audacious upgrade using technology not yet invented, as Matthew Chalmers reports It is hard to imagine upgrading an instrument as big and complex as the SwFr6.5bn (€10bn) Large Hadron Collider (LHC) at the CERN particle-physics lab near Geneva. The… [Read more…]
September 23, 2011
A CERN experiment claims to have caught neutrinos breaking the universe’s most fundamental speed limit. The ghostly subatomic particles seem to have zipped faster than light from the particle physics laboratory near Geneva, Switzerland, to a detector in Italy. Fish that physics textbook back out of the wastebasket, though: the new result contradicts previous measurements… [Read more…]
September 22, 2011
Read also: A Six-Sigma Signal Of Superluminal Neutrinos From Opera! If it’s true, it will mark the biggest discovery in physics in the past half-century: Elusive, nearly massless subatomic particles called neutrinos appear to travel just faster than light, a team of physicists in Europe reports. If so, the observation would wreck Einstein’s theory of… [Read more…]
September 6, 2011
U.S.-based physicists said on Monday they hope to have enough data by the end of this month to establish if the elusive Higgs boson, a particle thought to have made the universe possible, exists in its long-predicted form. If the answer is no, scientists around the globe will have to rethink the 40-year-old Standard Model… [Read more…]
August 22, 2011
Cern scientist says he sees ‘no striking evidence of anything that could resemble a discovery’ in hunt for Higgs boson Ripples of excitement swept through the physics community last month when Cern scientists reported what looked like glimpses of the long-sought Higgs boson. But the hopes have been dashed as it was revealed that the tantalising hints had all but… [Read more…]
August 1, 2011
…Scientists produce computer images of particle explosions similar to the greatest ever galactic light show It may look like a firework display in the night sky but these explosive images could be the closest we have yet come to snapshot from the birth of the universe itself. The computer generated images are the result of… [Read more…]
June 18, 2011
Geneva, 17 June 2011. Today at around 10:50 CEST, the amount of data accumulated by LHC experiments ATLAS and CMS clicked over from 0.999 to 1 inverse femtobarn, signalling an important milestone in the experiments’ quest for new physics. The number signifies a quantity physicists call integrated luminosity, which is a measure of the total… [Read more…]
June 13, 2011
When you think of Cern, the enormous particle accelerator under Geneva, you probably think of particle physics. But the institution is also helping out biologists too. On 20 May, a small group of biologists and chemists arrived at Cern for a workshop from the institution’s experts on how to organise a disparate community of research groups all… [Read more…]
May 24, 2011
….”100 Million Collisions per Second” European Organization for Nuclear Research (CERN) scientists look at computer screens showing traces on the Atlas experiment of the first protons injected in the Large Hadron Collider (LHC) during its switch-on operation in 2008 near Geneva. It set a new record early Monday, a feat that should accelerate the quest… [Read more…]
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March 5, 2012
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