... Geneva,Switzerland, b. 1934; and VAN DER MEER, SIMON, the Netherlands,CERN, Geneva, Switzerland, b. 1925:”for their decisive contributions to the largeproject, which led to the discovery of the fieldparticles ... New physics at HERA (200 GeV)2.3. EARLIEST STAGES 152.3 Earliest stages The early part of the 20th century saw the development of quantum theory and nuclear physics, of whichparticle physics ... around 1950. By the late 1920’s one knew about the existence of the atomicnucleus, the electron and the proton. I shall start this history in 1927, the year in which the new quantum theory was introduced....