10-25 years of 10-25 years of DØDØ France France

Hugh MontgomeryJefferson Laboratory

LPNHE Universite Paris 6 et 7October 14, 2008

Pascal Debu and everyone at the LPNHE

Thank you

To our hostsTo our hosts

Greg Bernardi, Marc Besancon, Arnaud Duperrin, Phillipe Gay, Pierre Petroff, Isabelle Ripp-Baudot, Gerard Sajot, Patrick Verdier

Thank you

The OrganisersThe Organisers

Etienne Auge, Frederique Badaud, Ursula Bassler, John Campbell, Marcela Carena, Dima Denisov, Frederic Deliot, Arnaud DuPerrin, Albert DeRoeck, Jos Engelen, Paul Grannis, Sebastian Greder, Jean-Francois Grivaz, Beate Heinemann, Matt Herndon, Karl Jakobs, Eric Kajfasz, Patrice Lebrun, Arnaud Lucotte, Bruno Mansoulie, Klaus Moenig, Christophe Royon, Yves Sirois, Jan Stark, Boris Tuchming, Patrice Verdier, Harry Weerts, John Womersley, Darien Wood, Terry Wyatt

Especially to the non-DØ people

Thank you

To The SpeakersTo The Speakers

55

Fermilab AntiprotonsFermilab Antiprotons

66

CDF - The CompetitionCDF - The Competition

Flash ADC time distribution of TRD response to electrons & pions (CERN test beam). Pion rejection > 50:1

Transition Radiation Detector, ret.

Xe/CH4 conversion gap

polypropelene foils

TRD inside CDC

X-ray converter and charge collection chamber

Charge clusters from converted X rays drifted to anode wires

Transition Radiation DetectorTransition Radiation Detector

88

The Scarlet Pimpernel, I failed to find a figure until I collected Paul’s Talk yesterday!!!

In Pluquet’s Thesis on the web the figures do not survive into .pdf.

But:

TRD played a major role in the “weeks of top”

and for my association with it, the LHCC declared me a TRD expert and had me give an internal briefing as a precursor to the discussion of the Atlas TRT.

99

19pb19pb

57pb57pb

Tevatron Run I and Top Tevatron Run I and Top

Au

g 9

3A

ug

93

Dec 9

4D

ec 9

4

Yagil – Top Turns Ten

1010

DØ Author List

Thanks to all

Abachi to Zylberstejn

(Grannis), Hadley – Top Turns Ten

Saclay Participation in Top Saclay Participation in Top PaperPaper

1111

• J. Alitti, • L. Chevalier, • Y. Ducros, • J.F. Glicenstein,• J-F. Lebrat, • B. Mansoulie, • A. Pluquet, • J. Teiger, • A. Zylberstejn

Run II Participation: Saclay and Run II Participation: Saclay and IN2P3IN2P3

1212

“ Apres moi c’est le deluge!!!”

a dit Armand (ou Louis XV ou Mme de Pompadour)

Bernardi, Bassler, Petroff, Kajfasz, Sajot, … Clermont Ferrand, Grenoble, Lyon, Marseille, Paris, Orsay, CEA-Saclay, Strasbourg

Run II: The CalorimeterRun II: The Calorimeter

1313

The heart of DØ needed help

Electronics

Calibration system

Purity Control

….. Lafayette a l’aide des Etats Unis contre les Anglais!?

Silicon, and much more

1414

DZeroDZero

QCD: Inclusive Jet ProductionQCD: Inclusive Jet Production

Physics of the Physics of the BBss Meson Meson

Introduction

The Bs Meson

More Bs Mesons

Lifetimes and Direct CP Violation

Bs Oscillations

CP Violation in BsJ/

Conclusions

bbJJJJpp

Searches for New Phenomena

Searches for new particles predicted by many beyond the SM theories:

Leptoquarks – generations 1 and 2 (lljj, ljj) and combined 1,2,3 (jj)

Susy – squark/gluino in MET+jets, lepton + jets

Wino/Zino trileptons, dileptons

top squarks

bottom squarks

GMSB gauginos

GMSB photons

R-parity violating couplings

Right-handed W

Heavy W,Z

4th generation b-quark

Leptophobic Higgs

Large extra dimensions (di-EM, monojets)

Anomalous trilinear couplings

Magnetic monopoles

Model independent searches (SLEUTH) Nothing Found!

Excellent Run 1 MET resolution key for many searches.

Nothing So Far!!!!!

But SUSY is running out of places to hide

Technicolor has not undergone resurrection

The extra dimensions are really rolled up tightly

New PhenomenaNew Phenomena

Vector Boson ProductionVector Boson Production

F. Déliot, D0-France 13-OCT-2008F. Déliot, D0-France 13-OCT-2008 2121

Summary of the Top Quark Mass Summary of the Top Quark Mass MeasurementsMeasurements

Summary of the Top Quark Mass Summary of the Top Quark Mass MeasurementsMeasurements

M/M = 0.7%M/M = 0.7%( 1.2 GeV)( 1.2 GeV)

2222

Electroweak FitsElectroweak Fits

http://lepewwg.web.cern.ch/LEPEWWG/

Higgs Particle – CDF & DØHiggs Particle – CDF & DØ CombinedCombined

Tevatron LuminosityTevatron Luminosity

Efficient Operations: A DØ Efficient Operations: A DØ HallmarkHallmark

We all look forward to the operation of the LHC with collisions at multi-TeV energies

The cross-sections for known high-mass processes such as top production will increase by a factor of ten from the TeVatron.

The experiments are superbly equipped in this region and higher.

The challenge is the low mass; if the Higgs is very light, finding it will be a challenge, anywhere

LHC: A new era to come?LHC: A new era to come?

The decision by the Saclay and IN2P3 groups to participate in DØ for run II appears, in retrospect, to have been the precursor to

an explosion of participation from Europe in both CDF and DØ at the Tevatron.

It was of great importance for DØ ( and German, UK, other European participation in

the Tevatron program)

It led to great physics.

Nous ne regrettons rien

ConclusionsConclusions