Tag: News
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CpBs2
[ ACP(B0s→K–π+) = +0.27 ± 0.04 ± 0.01 ] [ ACP(B0→K+π–) = -0.080 ± 0.007 ± 0.003 ] The LHCb Collaboration has just submitted for publication a paper which sets an important milestone in the history of particle physics. A difference between properties of matter and antimatter, named CP violation by particle physicists, was discovered
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paper100
The LHCb Collaboration has submitted its 100th publication! It is signed by 621 authors from 63 different universities and laboratories from 17 countries. The paper “Search for direct CP violation in D0→h–h+ modes using semileptonic B decays” has been presented at the Rencontres de Moriond QCD, La Thuile, Italy, and is described in the 12
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QCD2013
[ ΔACP = (−0.34 ± 0.15 ± 0.10 )%, pion tagged ] [ ΔACP = (+0.49 ± 0.30 ± 0.14)%, muon tagged ] The LHCb Collaboration presented today at the Rencontres de Moriond QCD, La Thuile, Italy, results of an improved search for the difference between properties of matter and antimatter, CP violation, in charm
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EW2013
[ Δms = 17.768 ± 0.023 ± 0.006 ps-1 ] [ φs = 0.01 ± 0.07 ± 0.01 rad ] ΔΓs = 0.106 ± 0.011 ± 0.007 ps-1 ] The LHCb Collaboration presented today at the Rencontres de Moriond EW, La Thuile, Italy, three important results of their more and more precise search for new
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X3872
[ X(3872) JPC = 1++ ] The LHCb Collaboration presented today at the Rencontres de Physique de la Vallée d’Aoste, La Thuile, Italy, an important result which makes the exotic nature of the X(3872) particle very probable. In the quark model of particle physics proposed in 1964 by Murray Gell-Mann and George Zweig mesons, like
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pAend
Today at 7:25 LHCb physicists have observed the last collision at the LHC. After a very succesfull period of proton with lead ion collisions the last few days of data taking were reserved for proton-proton collisions at 2.76 TeV. The two year shut-down period, called LS1, will start two days later in order to set-up
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pA
Today at 15:11 LHCb physicists have observed the first 2013 collisions of protons with lead ions in the LHCb detector. The 2013 data taking period has started. The proton – lead ion collisions were alredy observed by the LHCb on 13 September 2012 during the short test run.
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twofb
LHC collider has delivered at 9:50 today 2 fb-1 of luminosity to LHCb this year corresponding to about 100 million million of proton-proton collisions visible at LHCb. This was possible thanks to an exceptional performance of the machine and an impressive commitment from everybody involved in the operation of LHC in this very long running
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BsMuMu3
[ Branching ratio B0s →μμ = (3.2+1.5-1.2)x10-9 ] The LHCb Collaboration has presented today at the Hadron Collider Particle Symposium in Kyoto the result of the branching ratio measurement of the B0s meson decay into μ+μ– pair to be (3.2+1.5-1.2)x10-9. Both experimental and theoretical physicists were impatiently waiting for this result, an important milestone of
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BDosc
[ Δmd = 0.5156 ± 0.0051 ± 0.0033 ps-1 ] [ x’2 = (-0.9 ± 1.3)x10-4 ; y’ = (7.2 ± 2.4)x10-3 ] A fascinating feature of quantum mechanics has been reported 15 March 2011 on this page. The strange beauty particle (matter) B0s composed of a beauty antiquark (b) bound with a strange quark