Tau.Neutrino said:
CERN Scientists Say The LHC Has Confirmed Two New Particles, And Possibly Discovered a Third
The Large Hadron Collider is at it again, showing us new wonders in the world of particle physics. Scientists working on the Large Hadron Collider beauty (LHCb) collaboration have observed two new particles that have never been seen before – and seen evidence of a third.
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> Named Σb(6097)+ and Σb(6097)-, they consist of two up quarks and one bottom quark; and two down quarks and one bottom quark, respectively. These particles are known as bottom baryons, and they are related to four particles previously observed at Fermilab. However, the new observations mark the first time scientists have detected these higher-mass counterparts.
Good. May have to wait a while for a strange bottom then.
> So what’s the third particle candidate we mentioned earlier? The researchers think it might be a strange type of composite particle called a tetraquark. Observational evidence of tetraquarks has been pretty elusive to date, and that is also the case here. Evidence of the candidate particle, called Zc-(4100) and including two heavy charm quarks, was detected in the decay of heavier B mesons.
Fingers crossed.
> But the detection only had a significance of over 3 standard deviations. The usual threshold to claim the discovery of a new particle is 5 standard deviations. It will take future observations to either confirm or disprove the existence of Zc-(4100).
3 standard deviations will do me. There are literally a dozen or more already observed subatomic particles with fewer than 3 standard deviations.