Ding Zhaozhong profile Ding Zhaozhong,1was born in the United States on October 27th, 1936, and returned to China with his parents three months later.
65438-0956, studying in the Department of Physics and Mathematics, University of Michigan.
1960 master.
1962 received his doctorate and worked in CERN, Switzerland for one year.
From 65438 to 0964, he worked at Columbia University.
1976 because richter and I independently discovered a kind of drug called? /J, shared the 1976 Nobel Prize in Physics with richter.
Won the nobel prize in physics.
Ding Zhaozhong (Ding Zhaozhong 1936~ ~). Experimental physicist. My ancestral home is Rizhao, Shandong. 1936/kloc-0 was born in Ann Arbor, Michigan, USA on October 27th, and returned to China with his parents three months later.1936? From 65438 to 0949, Ding Zhaozhong and his parents went to many places in China. He had no formal education in his childhood, but he was exposed to the culture, history and dialects of different provinces and listened to the discussions of many scholars who often went to his home. From 65438 to 0949, Ding Zhaozhong entered Jianguo Middle School in Taiwan Province Province and received a strict education. He did well in math, physics and history. 1956 went to the university of Michigan, USA, and studied in the department of physics and mathematics successively. 1960, master's degree and doctor's degree in physics from 1962. 1963, he got a scholarship from Ford Foundation to work at CERN in Geneva, Switzerland. From 65438 to 0964, he worked at Columbia University. From 65438 to 0965, he became a lecturer at Columbia University in new york. Professor from Physics Department of Massachusetts Institute of Technology 1967. He is an academician of the American Academy of Sciences. His research interests include high-energy experimental particle physics, including quantum electrodynamics, unified theory of weak current, and quantum chromodynamics. A sign of his leadership? Jay's experimental group has worked in several international experimental centers.
Because of Ding Zhaozhong's contribution to physics, he was awarded the 1976 Nobel Prize in Physics, the American Lorenz Prize and the 1988 Tekasperry Prize in Science by the Italian government. He is an academician of the National Academy of Sciences, the American Academy of Arts, the Soviet Academy of Sciences, the Academia Sinica in China, and the Pakistani Academy of Sciences. He was awarded honorary doctorates by University of Michigan (1978), Chinese University of Hong Kong (1987), University of Bologna (1988) and Columbia University (1990). He is an honorary professor in China, Shanghai Jiaotong University and Beijing Normal University. He has won many medals, such as 1977 Erin Gold Award from American Society of Engineering Science, Leopard Excellence Award from taormina, Italy, and Science Gold Award from Brescia, Italy. He is also the editorial board of scientific journals such as Nuclear Physics B, Nuclear Instruments and Methods and Mathematical Modeling.
Ding Zhaozhong is mainly engaged in high-energy experimental physics, elementary particle physics and quantum electrodynamics. Study on the interaction between radiation and matter. His most outstanding contribution was that in 1974, he and richter independently discovered J/? Particles. For this, both of them won the 1976 Nobel Prize in Physics.
1in the summer of 972, Ding Zhaozhong's experimental team discovered the mass at 1.5 by using the proton accelerator of Brookhaven National Laboratory. 109eV~5.5？ 109eV. 1974, they discovered a substance whose mass is about three times that of protons (energy is 3. 1? 109eV)。 When publishing this discovery publicly, Ding Zhaozhong named this new particle J, in which "J" is similar to the Chinese character "D", indicating that it was discovered by China people. At the same time, American Richter discovered this particle and named it? Particles. Later, people called this particle J/? Particles. J/？ Particles have strange properties, and their life span is 5000 times longer than expected. This shows that it has a new internal structure, which can't be explained by three kinds of taste quarks known at that time, and it needs to be explained by introducing a fourth kind of quark-charm quark. J/？ The discovery of particles greatly promoted the development of particle physics.
In addition, Ding Zhaozhong discovered the phenomenon of three jets in the summer of 1979 through the physical experiment of high-energy electron-positron collision, which provided experimental basis for the existence of gluons and quantum chromodynamics. His experiments on the interference effect of electromagnetic action and weak action at high energy provide experimental basis for the unified theory of weak electricity. Starting from 198 1, he organized and led an international group-L3 group, with nearly 400 physicists from about 13 countries including China. High-energy physics experiments were carried out on CERN's high-energy electron-positron collider LEP to find new basic particles and new phenomena in particle physics.
Ding Zhaozhong is keen on training high-energy physics talents in China, and often selects young scientists from China to work in the group he leads. He is an honorary professor of China University of Science and Technology and a member of the Academic Committee of Institute of High Energy Physics, Chinese Academy of Sciences.
A few days ago, the 2005 World Physics Year was launched in Europe. He is leading 58/kloc-0 physicists from 43 first-class universities and research institutes in the United States, French, German, China and other four countries to explore new substances and antimatter in the universe on the world's strongest electron-positron collider built in Geneva.
Ding Zhaozhong's main score is 1. He discovered the butyl particle and won the Nobel Prize in physics.
Since 1965, the experimental group led by Ding Zhaozhong has been working in the electron synchrotron in Hamburg, the Federal Republic of Germany (the beam energy is 7.5? 109eV) on quantum electrodynamics and vector mesons (? ,? ,? A series of excellent experimental work, including the study of photogenerated vector mesons, the decay of vector mesons, and the experimental verification of vector basis models. 、? 、? What is the measured sum of meson photogenerated phases? 、? Accurate measurement of meson interference parameters promotes the understanding of vector mesons (see mesons). Experiments also prove the correctness of quantum electrodynamics.
1972 in the summer, Ding Zhaozhong experimental group used 3.3? 10 10eV proton accelerator. What is the search quality (1.5 ~ 5.5)? 109eV.
1974, they found a proton with a mass of about 3 times (mass 3. 1? 109eV)。 When this discovery was announced, Ding Zhaozhong named this new particle J? j？ And then what? Ding? The similar glyphs indicate that this is a particle discovered by China people. At the same time, American B. richter also discovered this particle and named it? Particles. Later (1975) people called this particle J/? Particles. J/？ Particles have strange properties, and their life span is 5000 times longer than expected. This shows that it has a new internal structure, which cannot be explained by the known three-flavor quarks at that time, and it needs to be explained by introducing the fourth quark-charm quark. J/？ The discovery of particles greatly promoted the development of particle physics. For this reason, Ding Zhaozhong and Li Xite both won the 1976 Nobel Prize in Physics.
2. Ding Zhaozhong's research focuses on experimental particle physics, quantum electrodynamics and the interaction between light and matter.
Up to now, his major academic contributions are: (1) the discovery of anti-deuterium; (2) In the past 25 years, people have carried out a series of experiments to test quantum electrodynamics. These experiments show that electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, electrons, etc. He Zi? Neutrons are point particles with a radius less than 10- 16 cm; (3) the experiment of accurately studying vector mesons; (4) Studying the photogenerated vector mesons and confirming the similarity between photons and vector mesons; (5) the discovery of J particles; (6)? Research on the generation of sub-pairs; (7) Discovery of gluon injection; (8) Systematic study of gluon physics; (9)? The accurate measurement of sub-charge asymmetry shows the correctness of the standard weak model for the first time. (10) Within the framework of the standard model, it is confirmed that there are only three generations of neutrinos in the universe.
3. Enthusiastically cultivate high-energy physics talents.
Starting from 198 1, Ding Zhaozhong organized and led an international cooperation group L3 to carry out high-energy physics experiments on the high-energy electron-positron collider LEP, which is expected to be built at the European Nuclear Center in 1988, and will look for new particles in the energy region of the centroid system of1ev, especially At present, L3 Group has nearly 400 physicists from about 13 countries, including China.
Ding Zhaozhong is keen on training high-energy physics talents in China, and often goes back to China to select young scientists to work in the group he leads. He was hired as an honorary professor of China University of Science and Technology and a member of the Academic Committee of Institute of High Energy Physics, Chinese Academy of Sciences.
4. leadership? Alpha magnetic spectrometer? Experimental exploration of antimatter
1On June 2, 998, at 6: 09 am EST, the space shuttle Discovery lifted off, carrying products jointly developed by China and the United States? Alpha magnetic spectrometer? Running the experiment started the first time that human beings went to space to look for antimatter and dark matter.
Alpha magnetic spectrometer experiment is a large-scale international cooperative scientific experiment project. The experiment was led by Professor Ding Zhaozhong, including physicists and engineers from 37 research institutions in the United States, China, Italy, Switzerland, Germany, Finland and other countries and regions. There are no fewer than 200 scientists and engineers in China alone, whose purpose is to find antimatter and dark matter in space.
This time on the space shuttle? Alpha magnetic spectrometer? Judging from the received 1% data, the returned data works normally and the expected antiprotons appear. However, due to the small number, it cannot be said that antimatter has been found. Alpha magnetic spectrometer will return to the ground with the space shuttle in 12 days. Next time, I will go into space again in 2002 and stay in space for three years. Five years later, the Alpha Space Station will be established, and the first batch of components will go into space for the first time on1998165438+1October 20th.
Ding Zhaozhong's Honor Because of Ding Zhaozhong's contribution to physics, he was awarded the Nobel Prize in Physics in 1976, the Lorenz Prize by the American government and the Tex Perry Prize in Science in 1988 by the Italian government.
He is an academician of the National Academy of Sciences, the American Academy of Arts, the Soviet Academy of Sciences, the Academia Sinica in China, and the Pakistani Academy of Sciences.
He was awarded honorary doctorates by University of Michigan (1978), Chinese University of Hong Kong (1987), University of Bologna (1988) and Columbia University (1990).
Honorary Professor of China Shanghai Jiaotong University, East China Normal University and Beijing Normal University, Honorary President of Qufu Normal University and Rizhao Vocational and Technical College.
1977 was awarded the Irene Gold Award by the American Society of Engineering Science.
1988 won the Leopard Excellence Award in taormina, Italy and the Science Gold Award in Brescia, Italy.
A few days ago, the 2005 World Physics Year was launched in Europe. He led 58/kloc-0 physicists from 43 first-class universities and research institutes in the United States, France, Germany and China to explore new substances and antimatter in the universe on the world's strongest proton collider built in Geneva.
Ding Zhaozhong's personal quotation 1. The most wasteful thing is time.
A person should thank his parents first.
3. The research of natural science is competitive, with only the first place. The second place is the last place.
4. The theory of natural science is inseparable from the foundation of experiment, especially physics, which starts from experiment.