Scientific career Abdus Salam

abdus salam lectures on g.u.t. @ university of chicago s oriental institute.

in 1966, salam carried out pioneering work on hypothetical particle. salam showed possible electromagnetic interaction between magnetic monopole , c-violation, formulated magnetic photon.

following publication of prl symmetry breaking papers in 1964, steven weinberg , salam first apply higgs mechanism electroweak symmetry breaking. salam provided mathematical postulation interaction between higgs boson , electroweak symmetry theory.

in 1972, salam began work indian-american theoretical physicist jogesh pati. pati wrote salam several times expressing interest work under salam s direction, in response salam invited pati ictp seminar in pakistan. salam suggested pati there should deep reason why protons , electrons different , yet carry equal opposite electric charge. protons carry quarks, electroweak theory concerned electrons , neutrinos, nothing postulated quarks. if of nature s ingredients brought in 1 new symmetry, might reveal reason various features of these particles , forces feel. led development of pati–salam model in particle physics. in 1973, salam , jogesh pati first notice since quarks , leptons have similar su(2) × u(1) representation content, may have similar entities. provided simple realisation of quark-lepton symmetry postulating lepton number fourth colour, dubbed violet .

physicists had believed there 4 fundamental forces of nature: gravitational force, strong , weak nuclear forces, , electromagnetic force. salam had worked on unification of these forces 1959 glashow , weinberg. while @ imperial college london, salam showed weak nuclear forces not different electromagnetic forces, , 2 inter-convert. salam provided theory shows unification of 2 fundamental forces of nature, weak nuclear forces , electromagnetic forces, 1 another. glashow had formulated same work, , theory combined in 1966. in 1967, salam proved electroweak unification theory mathematically, , published papers. achievement, salam, glashow, , weinberg awarded nobel prize in physics in 1979. nobel prize foundation paid tribute scientists , issued statement saying: contributions theory of unified weak , electromagnetic interaction between elementary particles, including, inter alia, prediction of weak neutral current . in 1970s salam continued trying unify forces including strong interaction in grand unified theory.