Tag: News
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Music60
Today, CERN, the European Organization for Nuclear Research, is blowing out 60 candles at an event attended by official delegations from 35 countries. Founded in 1954, CERN is today the largest particle physics laboratory in the world and a prime example of international collaboration, bringing together scientists of almost 100 nationalities. To mark the occasion,
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gamma1
Today at the International Workshop on the CKM Unitarity Triangle, CKM2014, Vienna, Austria, the LHCb collaboration has presented a combination of measurements of the CKM angle γ (in tree decays, see below). For the first time a single experiment has achieved a precision of better than 10 degrees, which is better than the combination of
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adsl
Today at the International Workshop on the CKM Unitarity Triangle, CKM2014, Vienna, Austria, the LHCb collaboration has presented the results of a measurement of the semileptonic asymmetry, adsl, related to a difference between a probability of a beauty meson, B0, to oscillate into its antimatter partner, B0, and a probability of the reverse process (an
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TwoSt
Today at the 15th International Conference on B-Physics at Frontier Machines at the University of Edinburgh, Beauty 2014, the LHCb collaboration has presented the results of a study of strange beauty meson B0s decay into an anti-charm meson D0, a K– meson and a π+ meson (B0s → D0K–π+). Previous results indicated the existence of
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ZpA
Today at the 37th International Conference on High Energy Physics in Valencia, the LHCb collaboration has presented the first observation of Z boson production in proton-lead collisions at the LHC at a centre-of-mass energy per proton-nucleon pair of 5 TeV. The main goal of lead-lead collision measurements at the LHC is to study the possible
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Chi3P
Today at the 37th International Conference on High Energy Physics in Valencia, the LHCb collaboration has presented important results on the production of beauty-anti-beauty quark pair bound states called Upsilon mesons, ϒ, in proton-proton collisions at the Large Hadron Collider LHC. The LHCb results include a precise measurement of the mass of one of these
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GuMo
Guy Wilkinson from the University of Oxford begins today his 3-year tenure as LHCb spokesperson. He replaces Pierluigi Campana from the Istituto Nazionale di Fisica Nucleare in Frascati. Monica Pepe Altarelli from CERN will play the role of deputy spokesperson during the same period by replacing Roger Forty and Burkhard Schmidt. click the images for
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LeBac
The baccalauréat, often known in France colloquially as le bac, is an academic qualification which French and international students take at the end of the lycée (High School) (secondary education). It is the main diploma required to pursue university studies. Today French students had to pass the examination in physics and chemistry. In the first
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RK
The LHCb Collaboration has just presented at the Large Hadron Collider Physics (LHCP) Conference in New York an interesting result: the ratio RK of the probability that a B+ meson decays to a K+μ+μ– or a K+e+e– was measured to be different from one with a 2.6σ significance. The RK is the ratio of two
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f0
The LHCb Collaboration has published today a paper which shows that the f0(500) and the f0(980) mesons, long thought to be four quark states (tetraquarks) made out of the light udud quarks (f0(500)) or susu quarks (f0(980)), are NOT consistent with being tetraquarks. The four quark states cannot be classified within the traditional quark model