Neutrino oscillations

Interview with Peter Donald MacDougall Parker, Professor Emeritus of Physics at Yale. Parker recounts his childhood growing up in New York City and Massachusetts, attending Amherst College, the excitement of being a graduate student at Caltech in the 1960s working on nuclear physics and nuclear astrophysics, his postgraduate position at Brookhaven National Laboratory, and his move to Wright Nuclear Structure Laboratory at Yale University in 1966. Parker recalls over five decades of research, teaching, and service work that includes: experimental nuclear physics and astrophysics work using tandem accelerators, solar neutrino flux, and dark matter search; teaching every single physics course offered at Yale and developing a new course; committee work; the gradual changes in gender demographics in the physics department at Yale. Also prominently mentioned are Willy Fowler, Richard Kavanaugh, Thomas Tombrello, John Bahcall, Ray Davis Jr., Allan Bromley, and his twin brother Robert Parker.

The interviewee has not given permission for this interview to be shared at this time. Transcripts will be updated as they become available to the public. For any questions about this policy, please contact [email protected].

Interview with Yifang Wang, Director of the Institute of High Energy Physics, Chinese Academy of Sciences. He describes the role of the Institute within the Chinese Academy, and he recounts his childhood in Nanjing, Jiangsu Province, in China. Wang discusses his undergraduate work in nuclear physics at Nanjing University and he discusses the opportunities to being chosen by Sam Ting to go to CERN. He discusses his graduate work at the University of Florence, where Ting had the L3 experiment, and he described his work going back and forth from CERN for six years, and his involvement in the Higgs search and excited leptons. Wang discusses his postgraduate work in tau polarization and some of the theoretical bases for testing the Standard Model. He describes his work on the AMS collaboration and the search for antimatter, and he describes his postdoctoral work in neutrino oscillations at Stanford. Wang discusses the opportunities leading to his offer from the Institute of High Energy Physics in Beijing and the prospect of shooting a neutrino beam. He discusses the unique ways that the Chinese government supports physics, and the importance of the Beijing Electron-Positron Collider and the search for glueballs. Wang describes his increasing responsibilities at the Institute leading to his directorship, and he discusses his current work on the Large Circular Collider and the future prospects of high energy physics in China. He describes his tenure as director of Juno and the origins of the Daya Bay experiment. At the end of the interview, Wang asserts that the future of elementary particle physics is through the Higgs for which new understandings of space and time will be achieved, and he emphasizes the importance of scientific collaboration and the benefits of competition as a key component in the future of American-Chinese relations.

In this interview, David Zierler, Oral Historian for AIP, interviews Stanley Wojcicki, professor emeritus in the Department of Physics at Stanford. Wojcicki recounts his family’s experiences in war-time Poland and his father’s work for the Polish government-in-exile in London. He discusses his family’s postwar escape to Sweden from the Communists before their passage to the United States. Wojcicki discusses his undergraduate experience at Harvard and the opportunities that came available as a result of Sputnik in 1957. He explains his decision to pursue his graduate research at Berkeley under the direction of Art Rosenfeld, and his realization at the time that Berkeley was at the forefront in the revolution of experimental elementary particle physics headed by Luis Alvarez and the bubble chamber technique used by his group. Wojcicki explains how SU(3) transitioned from a mathematical concept to a central component of particle physics, and he describes his postdoctoral work at Berkeley Laboratory and his NSF fellowship at CERN to work on K-meson beam experiments. He discusses his faculty appointment at Stanford and his close collaboration with Mel Schwartz using spark chambers. Wojcicki describes his advisory work for Fermilab and for HEPAP, and the controversy surrounding the ISABELLE project and the initial site and design planning of the SSC. He explains some of the early warning signs of the project’s eventual cancellation, and his work looking at charm particles at Fermilab from produced muons. Wojcicki explains that the endowed chairs named in his honor at Stanford were a retirement gift from his daughter Anne and her husband, Google co-founder Sergey Brin. Wojcicki reflects on his long career at Stanford, and he describes how the physics department has changed over the years and how government supported science has evolved. At the end of the interview, Wojcicki contrasts the sense of fundamental discoveries that permeated his early career, and he cites neutrino physics as a potentially promising area of significant discovery into the future.

In this interview, David Zierler interviews Deborah Harris, professor of physics at York University and Senior Scientist at Fermi National Accelerator Laboratory. Harris discusses her work as co-spokesperson for MINERvA, and she recounts her childhood and her father’s work as a physicist at Fermilab. She describes her undergraduate work at Cornell before she transferred to Berkeley. Harris discusses her graduate work at Chicago, where she contributed to the E799 experiment, and her thesis research on Kaon decay modes. She describes her postdoctoral research at the University of Rochester in neutrino physics, and her full time transition as a staff scientist at Fermilab to focus on neutrino oscillations. Harris discusses her subsequent work on MINERvA and MINOS and how the neutrino community has grown over the past fifteen years. She describes her contributions to the DUNE collaboration and its goal of taking neutrino measurements over a broad range of energy. At the end of the interview, Harris explains her decision to take a faculty appointment at York, and how neutrino research contributes to broader questions in physics.