Protons

Interview with Phiala Shanahan, assistant professor of physics in the Center for Theoretical Physics at MIT. Shanahan explains the administrative relationship between the department and the Center, and she recounts her childhood in Adelaide, Australia, her experiences at an all-girls school and the benefits this conferred in nurturing her interest in science. She discusses her concentration in computational physics and the mass of the H-dibaryon at the University of Adelaide and her decision to stay on with her undergraduate advisors, Anthony Thomas and Ross Young, for graduate school. Shanahan describes her interest in the proton radius puzzle as a research entry point for her thesis work and why she was interested in how particle physics can be connected more rigorously to quarks, gluons, and ultimately chemistry. She describes the opportunities leading to her postdoctoral research at MIT and some of the cultural adjustments she had to make coming from Australia. Shanahan discusses her collaboration with Will Detmold and she describes her contributions to the NPL-QCD research project and she discusses her first faculty appointment at William & Mary before returning to MIT where she remains in her current appointment and where she is pursuing work on proton structures and in creating ever-faster algorithms. She describes the potential benefits that would be conferred with the availability of true quantum computing for her field, and she describes some of the difficulties she has faced as a woman in getting recognized for her accomplishments in her field of research. At the end of the interview, she emphasizes why her long-term goal is to bridge nuclear physics and chemistry, and why she wants to keep an open mind about pursuing other areas that are both interesting and offer the opportunity to push forward discovery in foundational ways.

In this interview, David Zierler, Oral Historian, interviews Paul Grannis, emeritus professor of physics at Stony Brook University. He recounts his childhood in Ohio and describes his early interests and talents in math and science. He explains his decision to attend Cornell University and his reasons to focus on engineering physics while also developing an interest in theory. Grannis describes his graduate work at Berkeley, where he joined the Chamberlain group, which had focused on aligning the proton spin with the magnetic field by transferring the electron polarization to the proton polarization. He reflects on the differing approaches in particle physics as represented by East and West coast institutions. Grannis discusses his research work on the Cyclotron and Bevatron, and he describes his dissertation research on Regge poles and measuring the polarization of lanthanum nitrate crystals. He discusses his postdoctoral research at the Berkeley Radiation Lab, and he explains his decision to join the faculty at Stony Brook, which struck him as an exciting and up-and-coming place to pursue a career. Grannis describes the additional attraction of being in close proximity to Brookhaven Lab, and how he contributed to the overall broadening and improvement of the physics department. He explains his involvement in the ISABELLE project, and he describes the origins of the D0 endeavor and the feeling of excitement at Fermilab during that time. Grannis provides perspective on some of the inherent challenges in the SSC planning project and the existential challenges Fermilab faced as a result of focusing so exclusively on the Tevatron project. He describes the current state of high-energy physics and Europe’s leadership in this field, and some of the hypothetical advancements that could be made with the ILC endeavor. At the end of the interview, Grannis discusses his current work as co-spokesman of D0, his ongoing planning work on the ILC, he muses about what science projects he would fund if he had discretion on where to deploy 10 billion dollars, and he shares what he sees as some of the most exciting short and long term prospects in the field.

In this interview, David Zierler, Oral Historian for AIP, interviews Thomas C. Blum, Professor of Physics at the University of Connecticut. Blum recounts his childhood in Reno, Nevada and he describes his early interests in math and science. He describes his undergraduate work in aeronautical and astronomical engineering at the University of Washington. Blum discusses his job focusing on computational fluid dynamics at Boeing after college and he explains his decision to pursue a Ph.D. in physics at the University of Arizona. He describes his graduate work in lattice gauge theory studying under Doug Toussaint. Blum discusses his postdoctoral work at Brookhaven, where he continued to work on lattice gauge theory, and he describes his decision to join the faculty at UConn. He describes his ongoing interests in chiral symmetry, g-2 and QCD research, and he conveys his excitement over possible future breakthroughs in hadronic vacuum polarization. At the end of the interview, Blum conveys how much fundamental work remains to be done in physics, and as an example he raises what remains an open-ended question: what is the real structure of the proton?

Family background and early education; early science interests (telegraph and radio transmission), wins American Chemistry Society Contest in high school. Caltech for both undergraduate and graduate studies, 1926-1934, comments on courses, teachers (Richard C. Tolman, Paul Epstein) and fellow students (Chet Carlson, the inventor of Xerox). Joins Charles Lauritsen's group as graduate student (nuclear physics), gets involved in research projects. J. Robert Oppenheimer's interest in their work, Ernest Lawrence's interest and objections to Lauritsen/Crane work on the radiative captive process (Enrico Fermi), Merle Tuve's involvement. Involvement in building machines for the Kellogg Laboratory (Seeley W. Mudd); Ph.D 1934 (The capture of protons by Carbon-12). Accepts offer from University of Michigan at Ann Arbor; planning and building of a high voltage accelerator. Department involvement in applied work (GE, Ford), strong interest in biology; rising biophysics interest in the department. Wartime work. Recruited for MIT's Radiation Laboratory, later involved in Tuve's proximity fuse project; Manhattan District interest. Establishment of Biophysics Lab within Physics Department in Ann Arbor. The Racetrack Synchrotron. Also prominently mentioned are: Carl David Anderson, Ted Berlin, Sir John Cockcroft, John, Sir, Walter Francis Colby, James M. Cork, Leo Delsasso, David Mathias Dennison, William Alfred Fowler, Samuel Abraham Goudsmit, Halpern, Fred Hodges, Lampe, Otto Laporte, Gilbert Newton Lewis, Edwin Mattison McMillan, Harrison McAllister Randall, William Ralph Smythe, Robert Thornton, George Eugène Uhlenbeck, A. E. White, Robley Williams, Ralph Walter Graystone Wyckoff; and Randall Laboratory of University of Michigan.

Family background and early education; early science interests (telegraph and radio transmission), wins American Chemistry Society Contest in high school. Caltech for both undergraduate and graduate studies, 1926-1934, comments on courses, teachers (Richard C. Tolman, Paul Epstein) and fellow students (Chet Carlson, the inventor of Xerox). Joins Charles Lauritsen's group as graduate student (nuclear physics), gets involved in research projects. J. Robert Oppenheimer's interest in their work, Ernest Lawrence's interest and objections to Lauritsen/Crane work on the radiative captive process (Enrico Fermi), Merle Tuve's involvement. Involvement in building machines for the Kellogg Laboratory (Seeley W. Mudd); Ph.D 1934 (The capture of protons by Carbon-12). Accepts offer from University of Michigan at Ann Arbor; planning and building of a high voltage accelerator. Department involvement in applied work (GE, Ford), strong interest in biology; rising biophysics interest in the department. Wartime work. Recruited for MIT's Radiation Laboratory, later involved in Tuve's proximity fuse project; Manhattan District interest. Establishment of Biophysics Lab within Physics Department in Ann Arbor. The Racetrack Synchrotron. Also prominently mentioned are: Carl David Anderson, Ted Berlin, Sir John Cockcroft, John, Sir, Walter Francis Colby, James M. Cork, Leo Delsasso, David Mathias Dennison, William Alfred Fowler, Samuel Abraham Goudsmit, Halpern, Fred Hodges, Lampe, Otto Laporte, Gilbert Newton Lewis, Edwin Mattison McMillan, Harrison McAllister Randall, William Ralph Smythe, Robert Thornton, George Eugène Uhlenbeck, A. E. White, Robley Williams, Ralph Walter Graystone Wyckoff; and Randall Laboratory of University of Michigan.

Family background; undergraduate and graduate studies at Princeton University: electrical engineering 1921, graduate research on ionization of argon and HC1, spectroscopic interests (MA 1924, PhD 1925); developmental research as engineer for American Telephone and Telegraph Laboratories (1921–1923); National Research Council Fellow at Harvard University (1925–1927); Bartol Research Foundation Fellow (1927–1929), research on impact of protons on atoms and molecules. Assistant professor at Cornell University (1929–1931), high voltage X—ray research, visit to Cavendish Laboratory; founding Director of the American Institute of Physics (AIP 1931–1957): discussions on the origins, nature and funding of AIP; early associations with the Chemical Foundation and American Chemical Society; history of selected AIP journals; public relations to promote physics; impact of Depression on physics; Depression and post J,JW II studies on physics man—power and industries Also mentioned at length are E..P. Adams, Karl Compton, Charles D. Ellis, Paul D. Foote, Alfred Loomis, Donald Mueller, Robert Mullikan, George B. Pegram, Floyd Richtmyer, Henry N. Russell, Harry D. Smyth, John T. Tate.

Family background; undergraduate and graduate studies at Princeton University: electrical engineering 1921, graduate research on ionization of argon and HC1, spectroscopic interests, (MA 1924, PhD 1925); developmental research as engineer for American Telephone and Telegraph Laboratories (1921–23); National Research Council Fellow at Harvard University (1925–27); Bartol Research Foundation Fellow (1927–29), research on “impact of protons on atoms and molecules.” Assistant professor at Cornell University (1929–31), high voltage x-ray research, visit to Cavendish Laboratory, associations (1930); Founding Director of the American Institute of Physics (1931–57): discussions on the origin, nature and funding of AIP; early associations with the Chemical Foundation and American Chemical Society; history of selected AIP journals; public relations to promote physics; Impact of Depression on physics; Depression and post World War II studies on physics manpower and industries.