Experimental High Enery Physics at Rockefeller

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


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?


1970s @ CERN: evidence for quarks

NY times, April 20, 1988


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


The big bang


History of the Universe


Blow-hole at Grand Cayman


black hole eats star!


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


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!


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


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


The MiniPlugs @ CDF – made @RU


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

Experimental High Enery Physics at Rockefeller

Documents

Transcript of Experimental High Enery Physics at Rockefeller