• Skip to Content
  • Skip to Main Navigation
  • Skip to Search

Indiana University Indiana University IU

Open Search
  • About
    • History
    • Stories
  • Awards
    • University
      • Honorary Degrees
      • University Medal
      • Bicentennial Medal
    • Presidential
      • President’s Medal for Excellence
      • Thomas Hart Benton Mural Medallion
      • Distinguished Service Medal
    • Research & Creative Activity
      • Nobel Prize
      • National Academies
      • International Academies
      • MacArthur Fellowship
      • Pulitzer Prize
      • Guggenheim Fellowship
      • Fulbright Award
      • Andrew Carnegie Fellowship
      • Distinguished Professors
      • Titled Professors
      • Wylie Innovation Catalyst Medal
      • The Humboldt Fellowship for Experienced Researchers
    • Artistic & Performance
      • Emmy
      • Grammy
      • Oscar
      • Tony
    • Teaching
      • Frederic Bachman Lieber Memorial Award
      • Herman Frederic Lieber Memorial Award
      • President’s Award for Distinguished Teaching
      • Sylvia E. Bowman Award
      • Thomas Ehrlich Civically Engaged Faculty Award
      • President’s Award for Excellence in Teaching and Learning Technology
      • Part-Time Teaching Award
      • Lieber Memorial Associate Instructor Award
    • Service
      • Chancellor and Provost Medallion
      • Distinguished International Service Award
      • John W. Ryan Award for Distinguished Contributions to International Programs and Studies
      • E. Ross Bartley Award
      • W. George Pinnell Award for Outstanding Service
    • Historical
      • Bridging the Visibility Gap Initiative
      • IU Historical Marker Program
    • Student
      • Rhodes Scholarship
      • Marshall Scholarship
      • Mitchell Scholarship
      • Churchill Scholarship
      • Gates Cambridge Scholarship
      • Fulbright-Hays Doctoral Dissertation Research Abroad
      • Fulbright IIE
      • Goldwater Scholarship
      • Truman Scholarship
      • Boren Scholarship and Fellowship
      • Beinecke Scholarship
      • Udall Scholarship
      • Wells Senior Recognition Award
      • Stahr Distinguished Senior Award
      • Kate Hevner Mueller Outstanding Senior Award
    • Athletic
      • Olympians
      • IU Bloomington Athletics Hall of Fame
      • IUPUI Intercollegiate Athletics Hall of Fame
      • Z.G. Clevenger Award
      • Leanne Grotke Award
      • Bill Orwig Award
    • Alumni
      • University Alumni Awards
      • Campus Alumni Awards
      • School Alumni Awards
    • Philanthropy
      • Partners in Philanthropy Award
      • Presidents Circle Laurel Pin
      • Indiana University Indianapolis Spirit of Philanthropy Award
      • IU Foundation President’s Medallion
  • Nominations
    • Teaching Awards
    • Service Awards
      • John W. Ryan Award
      • W. George Pinnell Award
    • Research and Creative Activity Awards
  • Events
    • Distinguished Professors Symposium
    • National Academies Events
    • Guggenheim Fellowship Events
    • Celebration of Teaching and Service Events
  • Search Awards
  • Contact Us

University Honors & Awards

  • Home
  • About
    • History
    • Stories
  • Awards
    • University
    • Presidential
    • Research & Creative Activity
    • Artistic & Performance
    • Teaching
    • Service
    • Historical
    • Student
    • Athletic
    • Alumni
    • Philanthropy
  • Nominations
    • Teaching Awards
    • Service Awards
    • Research and Creative Activity Awards
  • Events
    • Distinguished Professors Symposium
    • National Academies Events
    • Guggenheim Fellowship Events
    • Celebration of Teaching and Service Events
  • Search
  • Search Awards
  • Contact Us
  • Home
  • Awards

J. Hans D. Jensen

* Deceased

J. Hans D. Jensen

Awards

Nobel Prize - 1963
Nobel Prize in Physics

About J. Hans D. Jensen

Born in Hamburg on June 25, 1907, J. Hans D. Jensen began studying physics, mathematics, physical chemistry and philosophy at the Universities of Hamburg and Freiburg. He obtained his PhD in 1932 in Hamburg, and became a scientific assistant at the Institute for Theoretical Physics of the University of Hamburg. In 1949 he was appointed Professor at the University of Heidelberg.

Since the early 1930's, scientists had been seeking to construct a theoretical model of the atomic nucleus. During this time, a German physicist, Walter Elsasser, suggested a model portraying protons and neutrons in some kind of orbit with their energy corresponding to the physical laws laid down by quantum theory. Meanwhile, Jensen's first research applied quantum mechanics, the mathematical theory of matter and radiation's interaction, to the study of crystals, whose atoms are arranged in a repetitive pattern. He observed the properties of crystals under high pressure and was also interested in constructing a theoretical model of the atomic nucleus. By 1947, his initial investigation of crystals advanced to an examination of the recoil distribution of radiation in molecules and crystals. Jensen showed that rays or particles discharged by the nuclei of radioactive atoms are caught within a crystal in a backward movement similar to the recoil of a rifle. The importance of the recoil research would advance the world's understanding of science significantly. Several years later, the University of Heidelberg offered Jensen the position of Professor of Physics. Continuing his research while teaching, he proposed a model of a nuclear structure of protons and neutrons grouped in onion-like layers of concentric shells. He suggested that the nucleons spun on their own axis while they moved in an orbit within their shell and that certain patterns in the number of nucleons per shell made the nucleus more stable. Though many physicists were skeptical because of its description of strong spin-orbit coupling, contrary at the time to notions about the motion of nucleons, the years that followed confirmed Jensen's nuclear shell model hypothesis.

Following his groundbreaking work on the structure of the nucleus, Jensen accepted a series of visiting professorships at academic institutions throughout the United States and worked on radioactivity, significantly advancing the understanding of the phenomenon. Throughout the 1950's, he taught at the University of Wisconsin, the Institute for Advanced Study in Princeton the University of California at Berkeley, and Indiana University. While at Indiana University as a visiting professor, for one year Jensen collaborating with other members of the Physics Department, making further advancements in his research. Eventually, his critical discoveries about the structure of atoms led to his Nobel Prize in Physics in 1963.

  • University
  • Presidential
  • Research & Creative Activity
  • Artistic & Performance
  • Teaching
  • Service
  • Historical
  • Student
  • Athletic
  • Alumni
  • Philanthropy
  • Office of the President

Indiana University

Accessibility | College Scorecard | Privacy Notice | Copyright © 2025 The Trustees of Indiana University