Going through GVA

In Geneva airport they’ve had a “Swiss/EU/UK” line at passport control for a long time, even before our act of self harm in 2016. Yesterday evening I noticed the UK flag had been taped over.

Swiss/French border near CERN

Frictionless border. Now try doing that with a lorryload of fancy hoovers.

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Another pentaquark

I was earlier into work than usual this morning after talking about a new pentaquark discovered by LHCb and reported just now in the Moriond QCD meeting.

rjnEven so, when I got in, Ryan was already there, well into his Noνa data taking shift.

After confusion and controversy on various experiments (including mine) over several years, LHCb reported the first solid observation of two pentaquark states in 2015. This result adds a third, and also reveals that one of the others may in fact be two, with slightly different masses.

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Supersymmetry Redux

In the previous post, “Running over the same old ground?”, I outlined three types of reaction to the lack of evidence (so far, at the LHC) for physics beyond the Standard Model. A conversation afterward with Prof Michael Duff reminded me there is a fourth type, which he exemplifies.

Somewhere, over the rainbow

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Running over the same old ground?

Last week I was in CERN for various meetings. Rather unexpectedly, these included one with Roger Waters in which I totally failed to say “Welcome to the Machine” at the right moment.

cern and the jura, from a plane

There’s physics in them thar hills…

The main business was CERN’s Scientific Policy Committee, followed  by Council, and the first meeting of the “European Strategy Group” for particle physics which I mentioned here. As I describe in that article, much attention focusses on whether there is a case for a new big collider, and if so which one?

The LHC has transformed our view of particle physics, partly by discovering the Higgs boson and measuring its properties – especially its mass – and partly by what it has not observed. There were predictions that other new particles would show up at the same time as the Higgs, especially those predicted in an extension of the Standard Model of particle physics called “supersymmetry”. These expectations were not met, and that has led to a few different reactions amongst theorists.

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Posted in Particle Physics, Physics, Science, Science Policy | Tagged , , , , , , , , | 9 Comments