RU@LHC 24 May 2010 Experimental HEP at RU K. Goulianos 1
Experimental High Enery Physics at Rockefeller
particles
quarks leptonsforce particles Higgs field…. life?
cosmology
extra dimensionsdark matterdark energyblack holes
http://www.rockefeller.edu/events/string_fever/transcript.php
RU@LHC 24 May 2010 Experimental HEP at RU K. Goulianos 2
The laboratory
1970 HEP lab established on campus, R. Cool HOL1971 KG Associate Professor 1070s CERN: co-establish existence of quarks
Fermilab: confirm rising total cross sections
1980s Brookhaven: p scattering evidence for Z
1981 KGProf.
1995 Fermilab: top-quark discovery (Luc Demortier)
1996 Fermilab: quark sub-structure search (Anwar Bhatti)
2000 Fermilab: running of strong coupling (Christina Mesropian)
2009 HERA @DESY lepto-quark search (Robert Ciesielski)
2009 Fermilab top-quark mass (Jim Lungu)
2010 Fermilab W-mass (Sarah Malik)
1971 - Diffraction – npQCD (KG+lab) dark energy?
Visiting fellow: Renata Rodrigues
Adjunct faculty: Sebastian White, Michele Gallinaro, Valery Khoze
Instrument shop: Vadim Sherman (supervisor), Josip Golia
Admin. secretary: Janet Kallo
currentmembers7+4+3 =1 4
http://physics.rockefeller.edu/dino/myhtml/students.htmlSTUDENTS
Higgs mass?
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1970s @ CERN: evidence for quarks
NY times, April 20, 1988
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Mg = 0 MW, Z~100 Mp
Mtop~Mgold
RU and the SM
Higgs field generates mass
Glashow, Salam, and Weinberg – 1979 Nobel prize
Fermilab1995
CERN1970s
My PhD thesis@ CU1962 (thesis ’63) BNL 1981
p p
evidence for q’s
evidence for Z
Z discovered directly in 1983at CERN
predict C in 1979 – Glashaw, Iliopoulos (RU) , Miani
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The big bang
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History of the Universe
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Blow-hole at Grand Cayman
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black hole eats star!
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Elementary Particles
Aristotle
450 BC
earthwaterairfire
atom
Demokritos
1869
periodictable
Mendeleyev
1897
electron
Thomson
1910
nucleus
Rutherford
1962
quarks
Gell-Mann
-particlesSource
Rutherford Experiment
Large angle scattering atoms have nuclei
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Searching for quark substructure at Fermilab
Out of conepartons
Decays, interactions in material,Magnetic field
Calorimeter shower
hadronization
no substructure found down to ~ 10-17 cm
10 ordresof magnitude!
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SYMMETRY
n
p
- 0(1318)
(1384)
0(1533)-
-
-o + ++
12
10
2
11
3
2
1
0
Strangeness: S
u : I3= 1/2 S= 0 Q= 2/3
d : I3= -1/2 S= 0 Q= -1/3
s : I3= 0 S=-1 Q= -1/3Isotopic spin:I3=Q-(B+S)/2
uud ddu
uus
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String Theory
Particles correspond to the vibration modes of
a string in 10 dimensions
Gravity is included!
Pythagoras applied it to music
in 400 BC:1+2+3+4=10
http://www.aboutscotland.com/harmony/prop.html
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The MiniPlugs @ CDF – made @RU
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MiniPlug Construction at Rockefeller
About 1500 wavelength shifting fibers of 1 mm dia. are ‘strung’ through holesdrilled in 36 lead plates sandwiched between reflective Al sheets and guided
into bunches to be viewed individually by multi-channel photomultipliers.
QCD – Quantum Chromo-DynamicsThe Theory of Strong Interactions
COLOR FORCE
udu
proton(colorless)
asymptoticasymptoticfreedom - 1973freedom - 1973
con
fin
em
en
tco
nfin
em
en
t
Str
ong c
ouplin
g
1 fermiDistance
s
1
0
s