Editing 1964 in science (section)

==Physics==
* Three [[1964 PRL symmetry breaking papers|papers]] are published by [[Robert Brout]] and [[François Englert]],<ref>{{cite journal|last1=Englert|first1=F.|last2=Brout|first2=R.|year=1964|title=Broken Symmetry and the Mass of Gauge Vector Mesons|journal=[[Physical Review Letters]]|volume=13|pages=321–323|bibcode=1964PhRvL..13..321E|doi=10.1103/PhysRevLett.13.321|issue=9|doi-access=free}}</ref><ref>{{cite arXiv|last1=Brout|first1=R.|last2=Englert|first2=F.|year=1998|title=Spontaneous Symmetry Breaking in Gauge Theories: A Historical Survey|eprint=hep-th/9802142}}</ref> [[Peter Higgs]],<ref name="Peter W. Higgs 1964 508-509">{{cite journal|last=Higgs|first=P. W.|year=1964|title=Broken Symmetries and the Masses of Gauge Bosons|journal=[[Physical Review Letters]]|volume=13|pages=508–509|bibcode=1964PhRvL..13..508H|doi=10.1103/PhysRevLett.13.508|issue=16|doi-access=free}}</ref> and [[Gerald Guralnik]], [[C. R. Hagen|Dick Hagen]], and [[Tom W. B. Kibble|Tom Kibble]],<ref>{{cite journal|last1=Guralnik|first1=G. S.|last2=Hagen|first2=C. R.|last3=Kibble|first3=T. W. B.|year=1964|title=Global Conservation Laws and Massless Particles|journal=[[Physical Review Letters]]|volume=13|pages=585–587|bibcode=1964PhRvL..13..585G|doi=10.1103/PhysRevLett.13.585|issue=20|doi-access=free}}</ref><ref>{{cite journal|last=Guralnik|first=G. S.|year=2009|title=The History of the Guralnik, Hagen and Kibble development of the Theory of Spontaneous Symmetry Breaking and Gauge Particles|journal=[[International Journal of Modern Physics A]]|volume=24|pages=2601–2627|arxiv=0907.3466|bibcode=2009IJMPA..24.2601G|doi=10.1142/S0217751X09045431|issue=14|s2cid=16298371}}</ref> predicting the [[Higgs boson]] and [[Higgs mechanism]] (or Englert–Brout–Higgs–Guralnik–Hagen–Kibble mechanism) which provides the means by which [[gauge bosons]] can acquire non-zero masses in the process of spontaneous [[symmetry breaking]].<ref>{{cite journal
|last=Kibble|first=T. W. B.|year=2009|title=Englert–Brout–Higgs–Guralnik–Hagen–Kibble mechanism|journal=[[Scholarpedia]]|volume=4|issue=1|page=6441|doi=10.4249/scholarpedia.6441|bibcode = 2009SchpJ...4.6441K |doi-access=free}}</ref> As part of ''[[Physical Review Letters]]''{{'}} 50th anniversary celebration, the journal will recognize each of these contributions as milestone [[1964 PRL symmetry breaking papers|papers]] in its history.<ref>[http://prl.aps.org/50years/milestones#1964 ''Physical Review Letters'' 50th Anniversary Milestone Papers].</ref>
* Existence of the [[charm quark]] is speculated by [[James Bjorken]] and [[Sheldon Glashow]].<ref>{{cite journal|last1=Bjørken|first1=B. J.|last2=Glashow|first2=S. L.|year=1964|title=Elementary particles and SU(4)|journal=[[Physics Letters]]|volume=11 |issue=3|pages=255–257|bibcode=1964PhL....11..255B|doi=10.1016/0031-9163(64)90433-0}}</ref>
* [[John Stewart Bell]] publishes a paper on the [[EPR paradox]] originating [[Bell's theorem]].<ref>{{cite journal|last=Bell|first=John S.|year=1964|title=On the Einstein Podolsky Rosen Paradox |journal=[[Physics Physique Физика]] |volume=1|issue=3|pages=195–200|doi=10.1103/PhysicsPhysiqueFizika.1.195|doi-access=free}}</ref>