3. UPBRINGING
• Born on June 24, 1927 in New York
• Russian-Jewish immigrant
• Father: Oscar Perl (Clerk and Salesman)
• Mother: Fay Rosenthal
(Secretary/Bookeper)
• Sibling: Lila Perl
• Books and mechanical things
Martin Lewis
4. PERSONAL LIFE
• Married to Teri Hoch Perl and blessed
with 3 sons and a daughter
• Jed, Matthew, Joseph, and Anne
Bernard
• Died on September 30 2014 due to
heart attack at the age of 87
• Has a large collection of construction
toys where he believed that this could
germ out the experimental creativity of
people
Martin Lewis
5. EDUCATION
• Graduated at James Madison High School at 1942 with
skipping grades.
• Later enrolled at Polytechnic Institute of Brooklyn with
a degree of Chemical Engineering. With the help of G.I.
Bill he completed his B. degree at 1948 as Summa Cum
Laude
• Enrolled at Schenectady’s Union College to took
advance calculus and nuclear physics for his work at
General Electric Company
• Took his Ph.D. in atomic physics at Columbia University
(1950-1955)
Martin Lewis
Perl
6. CAREER
Worked as a chemical engineer for
General Electric Company, producing
electron vacuum tubes. Led him to
enrol at Union College and graduated at
1950 to study modern physics.
• Assistant professor at Michigan University(1955) for 8 years
• Professor at Stanford Linear Accelerator Center (1963)
• Became a visiting professor at University of Liverpool
• Received an honorary doctorate from University of Belgrade
7. Tau Lepton Discovery (τ)
• Became an experimentalist physicist
• Leader of SLAC’s Experimental group
Isidor Isaac Rabi
8. Tau Lepton Discovery (τ)
1st - Electron – muon inelastic scattering
2nd - Muon – proton inelastic scattering
3rd - Electron – positron inelastic scattering
– Electron-positron colliding beam or SPEAR
(Standford Positron-Electron Accelerating
Ring) and Mark 1
• 1974 he had found 24 electron – muon events,
referred the new unknown particle as “U”
• 1975 presented at summer conferences his
paper results and December 1975 published the
paper entitled “Evidence for Anomalous Lepton
Production in e+e- Annihilation
9. Tau Lepton Discovery (τ)
• 1974, he had found 24 electron – muon events,
referred the new unknown particle as “U”
• 1975, presented at summer conferences his
paper results and December 1975 published the
paper entitled “Evidence for Anomalous Lepton
Production in e+e- Annihilation”
• 1976, sample grown to 139 events which shows
consistent production and decay of a new heavy
lepton
• March 1977, new heavy lepton called as T (tau)
Editor's Notes
With freiderick Reines for the detection of neutrino
Books: science for the citizen and mathematics for the millions
His father established own company, Allied printing which made their living better
Jed - art critic for The New Republic for twenty years and a regular contributor to The New York Review of Books.
Anne - is an accountant, currently working at Channing House in Palo Alto, CA.
Matthew - currently a practicing physician with the Scripps Clinic Medical Group in San Diego, CA, where he specializes in emergency and urgent care
Joseph – in line with medical physics. He has worked at SLAC its computing division.
Age of 16 he graduated in high school
Although he won the physics medal upon graduation, never thought of being a physicst because he thinks it cannot earn a good living
Enlisted to the army and became an engineering cadet at the us marine academy 1944, finaly returned to school on 1947 and completed his b.degree at 1948 as summa cumlaude
GE- General electric company
He enrol because he doesn’t have background with the physics of vacuum tubes
Fascinated with modern physics he quit his job on g.e and take his phd then became an assistant professor at Michigan where he focus on studying strong interaction physics and study pion-proton elastic scattering pion is a combination of an up and down quarks
Influenced by his professor noble laureate isidore Isaac rabi developed him to became an experimentalist physicst and taught him how to select research pronlem and approach them experimentally.
So martin engage himself to particle physics.
This leads him to became the leadr of slac’s experimental group
Noble prize winner 1944 for the discovery of nuclear magnetic resonance which is used in magnetic resonance imaging
Because of his work at mihcigan he got interested in strong interactions and work with elastic scattering of neutrons and protons.
When at slac’s he with his group focus on the electron muon inelastic scattering to solve the mystery between electron-muon, thinking that there might be another lepton to fully explain why the muon and electron has the same characteristics except that muon is much more heavier and decays faster.
His second attempt was they focus on the muon-proton inelastic scattering and compare it to electron-proton inelastic scattering, failed to show significant result then he ended the idea.
Hes third attempt was the electron-positron inelastic scattering where they had built the mark I which is intended to produce e+ e- collisions
By 1973 his SPEAR and Mark I is running, and by the end of 1974 he had found 24 electron muon events which he analysed and calculated and referred it as U for unknown new particle.
He presented at 1975 summer conferences and its first publication in December 1975, the paper was entitled evidence for anomalous lepton production in e+e- annihilation, where it only presented just facts with no claims.
By 1976 the sample had grown to 139 events, enough for martin to show that the events to show consistent production and decay of a new heavy lepton
On March 1977 martin gave the lepton its permanent name T(tau) from the greek word triton which means third in series
Because of his work at mihcigan he got interested in strong interactions and work with elastic scattering of neutrons and protons.
When at slac’s he with his group focus on the electron muon inelastic scattering to solve the mystery between electron-muon, thinking that there might be another lepton to fully explain why the muon and electron has the same characteristics except that muon is much more heavier and decays faster.
His second attempt was they focus on the muon-proton inelastic scattering and compare it to electron-proton inelastic scattering, failed to show significant result then he ended the idea.
Hes third attempt was the electron-positron inelastic scattering where they had built the mark I which is intended to produce e+ e- collisions
By 1973 his SPEAR and Mark I is running, and by the end of 1974 he had found 24 electron muon events which he analysed and calculated and referred it as U for unknown new particle.
He presented at 1975 summer conferences and its first publication in December 1975, the paper was entitled evidence for anomalous lepton production in e+e- annihilation, where it only presented just facts with no claims.
By 1976 the sample had grown to 139 events, enough for martin to show that the events to show consistent production and decay of a new heavy lepton
On March 1977 martin gave the lepton its permanent name T(tau) from the greek word triton which means third in series
