Perl, Martin Lewis

Perl, Martin Lewis,

1927–2014, American physicist, b. Brooklyn, N.Y., Ph.D. Columbia, 1955. He was a professor at the Univ. of Michigan from 1955 to 1963, when he accepted a position at Stanford; he retired as professor emeritus there in 2004. Perl and Frederick ReinesReines, Frederick,
1918–99, American physicist, b. Paterson, N.J., Ph.D. New York Univ., 1944. He was a researcher at Los Alamos National Laboratory (1944–59), a professor at Case Institute of Technology (now Case Western Reserve Univ.
..... Click the link for more information. were jointly awarded the 1995 Nobel Prize in Physics for pioneering experimental contributions to leptonlepton
[Gr.,=light (i.e., lightweight)], class of elementary particles that includes the electron and its antiparticle, the muon and its antiparticle, the tau and its antiparticle, and the neutrino and antineutrino associated with each of these particles.
..... Click the link for more information. physics. Working at Stanford's SLAC National Accelerator Laboratory, Perl discovered (1975) the tau lepton, a subatomic particle that is similar to the electron but 3,500 times heavier and far less stable. Until Perl's discovery, there were only two known families of elementary building blocks in the standard model of particle physics; the tau lepton turned out to be the first-discovered member of a third family. He later conducted research on the nature of quarks and of dark energy.

单词	perl, martin lewis
释义	Perl, Martin Lewis Perl, Martin Lewis, 1927–2014, American physicist, b. Brooklyn, N.Y., Ph.D. Columbia, 1955. He was a professor at the Univ. of Michigan from 1955 to 1963, when he accepted a position at Stanford; he retired as professor emeritus there in 2004. Perl and Frederick ReinesReines, Frederick, 1918–99, American physicist, b. Paterson, N.J., Ph.D. New York Univ., 1944. He was a researcher at Los Alamos National Laboratory (1944–59), a professor at Case Institute of Technology (now Case Western Reserve Univ. ..... Click the link for more information. were jointly awarded the 1995 Nobel Prize in Physics for pioneering experimental contributions to leptonlepton [Gr.,=light (i.e., lightweight)], class of elementary particles that includes the electron and its antiparticle, the muon and its antiparticle, the tau and its antiparticle, and the neutrino and antineutrino associated with each of these particles. ..... Click the link for more information. physics. Working at Stanford's SLAC National Accelerator Laboratory, Perl discovered (1975) the tau lepton, a subatomic particle that is similar to the electron but 3,500 times heavier and far less stable. Until Perl's discovery, there were only two known families of elementary building blocks in the standard model of particle physics; the tau lepton turned out to be the first-discovered member of a third family. He later conducted research on the nature of quarks and of dark energy.
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