CERN Courier – July-August 2019

(lily) #1
CERNCOURIER

π– π+


K^0 K+


ηʹ π


0


K



  • K^0


ρ






φ


0
ω

0


p



  • ρ




K*






K*


0


K*^0


K*






p


Σ


+
Σ


  • Λ


η


0


Ξ



  • Ξ^0


n


Σ*


+
Σ*





Δ



  • Δ


0
Δ

+
Δ

++


Σ*


0


Ξ*



  • Ξ*


0


Ω–


ρ^0


ω^0 φ^0


Σ^0


CERN Courier at 60  European Strategy updates^ ^ Lessons from LEP


CERNCOURIER


July/August 2019 cerncourier.com Reporting on international high-energy physics


GELL-MANN’S


COLOURFUL LEGACY


CCJulAug19_Cover_v3.indd 1 27/06/2019 15:

http://www.


Welcome to the digital edition of the July/August 2019 issue of CERN Courier.


When CERN was just five years old, and the Proton Synchrotron was


preparing for beams, Director-General Cornelis Bakker founded a new


periodical to inform staff what was going on. It was eight-pages long with a


print run of 1000, but already a section called “Other people’s atoms” carried


news from other labs and regions. Sixty years and almost 600 Couriers later,


high-energy physicists are plotting a new path into the unknown, with the


update of the European Strategy bringing into focus how much traditional


thinking is shifting, with new ideas and strong opinions in abundance.


The first mention of quarks in the Courier was in March 1964, a few


months after they were dreamt up almost simultaneously on either side of


the Atlantic by George Zweig and Murray Gell-Mann, who passed away in


May, and whose wide-ranging legacy is explored in this issue. Back then, the


idea of fractionally charged, sub-nucleonic entities seemed preposterous.


It’s a reminder of how difficult it is to know what will be the next big thing


in the fundamental-exploration business. On other pages, LHCb unfolds


a ground-breaking analysis of CP violation in three-body B+ decays,


nonagenarian former CERN Director-General Herwig Schopper reflects on


lessons from LEP, and Nick Mavromatos and Jim Pinfold report on the cut


and thrust of a Royal Society meeting on topologically non-trivial solutions


of quantum field theory.


To sign up to the new-issue alert, please visit:


http://cerncourier.com/cws/sign-up.


To subscribe to the magazine, please visit:


http://cerncourier.com/cws/how-to-subscribe.


CERN Courier – digital edition


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