In early 1945, Massey offered Burhop a position as a lecturer at University College, London, in the Mathematics Department, of which Massey was the departmental head.
He had to wait until he was released by the University of Melbourne, and did not reach London until after the war ended in August 1945.
His wife and family, who had stayed in Australia while he was working in the United States,  joined him in London some months later.
Living and working conditions in London were much worse than in California or Australia.
Wartime shortages persisted, and the college had suffered bombing damage, so the Mathematics Department were located in temporary quarters.
He was promoted to reader in 1949.
Massey became head of the Physics Department in 1950, and Burhop moved there too.
He became a professor in 1960, and Dean of the Faculty of Science in 1967.

Burhop listed "furtherance of international scientific cooperation" as one of his hobbies.
He worked with the University of Edinburgh and the University of Padua to establish a high-altitude cloud chamber on Marmolada that commenced operation in 1953.
In 1957, he collaborated with Occhialini and C. F. Powell on a five-nation study of K mesons and their interaction with atomic nuclei that went on for several years, and produced a wealth of new results, including the first observation of a double lambda hypernucleus.
He spent the 1962–63 academic year on secondment to CERN, and was secretary of a committee chaired by Edoardo Amaldi that drew up its policy for accelerator development.
The machines the committee recommended, the Intersecting Storage Rings and the Super Proton Synchrotron (SPS) were built, and became an important part of physics research in Europe for decades to come.

When Burhop took charge of the Bubble Chamber Group at University College in 1967, he was quick to grasp the advantages of heavy liquid bubble chambers for studying neutrino interactions, and steered the group towards participation in joint European ventures, using the Gargamelle.
The group's discovery of neutral currents in 1973 was a milestone on the road to the theoretical unification of electromagnetism with the weak force.
 In 1974 and 1975, with the help of Robert R. Wilson, the director of the Fermilab in the United States, an international team from Fermilab and seven European laboratories under Burhop's leadership carried out a search for a new particle, the existence of which Burhop had predicted in 1963.
He had suggested that neutrino interactions could create short-lived (perhaps as low as 10⁻¹⁴ s) particles that could be detected with the use of nuclear emulsion.
Experiment E247 at Fermilab successfully detected particles with a lifetime of the order of 10⁻¹³ s. A follow-up experiment WA17 with the SPS confirmed the existence of the 
Λ⁺
c (charmed lambda baryon), with a flight time of 7.3±0.1 x 10⁻¹³ s.
In early 1945, Massey offered Burhop a position as a lecturer at University College, London, in the Mathematics Department, of which Massey was the departmental head. He had to wait until he was released by the University of Melbourne, and did not reach London until after the war ended in August 1945. His wife and family, who had stayed in Australia while he was working in the United States,  joined him in London some months later. Living and working conditions in London were much worse than in California or Australia. Wartime shortages persisted, and the college had suffered bombing damage, so the Mathematics Department were located in temporary quarters. He was promoted to reader in 1949. Massey became head of the Physics Department in 1950, and Burhop moved there too. He became a professor in 1960, and Dean of the Faculty of Science in 1967.
Burhop listed "furtherance of international scientific cooperation" as one of his hobbies. He worked with the University of Edinburgh and the University of Padua to establish a high-altitude cloud chamber on Marmolada that commenced operation in 1953. In 1957, he collaborated with Occhialini and C. F. Powell on a five-nation study of K mesons and their interaction with atomic nuclei that went on for several years, and produced a wealth of new results, including the first observation of a double lambda hypernucleus. He spent the 1962–63 academic year on secondment to CERN, and was secretary of a committee chaired by Edoardo Amaldi that drew up its policy for accelerator development. The machines the committee recommended, the Intersecting Storage Rings and the Super Proton Synchrotron (SPS) were built, and became an important part of physics research in Europe for decades to come.
When Burhop took charge of the Bubble Chamber Group at University College in 1967, he was quick to grasp the advantages of heavy liquid bubble chambers for studying neutrino interactions, and steered the group towards participation in joint European ventures, using the Gargamelle. The group's discovery of neutral currents in 1973 was a milestone on the road to the theoretical unification of electromagnetism with the weak force.  In 1974 and 1975, with the help of Robert R. Wilson, the director of the Fermilab in the United States, an international team from Fermilab and seven European laboratories under Burhop's leadership carried out a search for a new particle, the existence of which Burhop had predicted in 1963. He had suggested that neutrino interactions could create short-lived (perhaps as low as 10⁻¹⁴ s) particles that could be detected with the use of nuclear emulsion. Experiment E247 at Fermilab successfully detected particles with a lifetime of the order of 10⁻¹³ s. A follow-up experiment WA17 with the SPS confirmed the existence of the 
Λ⁺
c (charmed lambda baryon), with a flight time of 7.3±0.1 x 10⁻¹³ s.
Eric Burhop