giorgio and cdf celebrating 70 years of giorgio and >25 years of cdf henry frisch univ. of...
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Giorgio and CDF
Celebrating 70 years of Giorgio and >25 years of CDF
Henry Frisch Univ. of Chicago
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A Personal Note:I first met Giorgio at the 1974 London Conf- we had just found ‘direct muons’ (charm):
He came to the session in tennis whites + rackets, with charm and enthusiasm.
“The lack of Pt ‘bumps’ means that there are no significant heavy objects (M from 3 to 10 GeV) that decay into 2 leptons”-Leon
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Intro: Giorgio’s Physics Interests:
See Fermi’s Yale Lectures of 1951“Electromagnetic and
Yukawa InteractionConstants:”
“Perhaps future developments..will enable us to understand the reasons for the existence and the strength of the various interactions.”- Fermi
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The Start of CDF• Jan 1997- Cronin heads Colliding Beam
Dept.- -• 2 Init. Designs: one magnetic, one not• Wilson decrees 10M$ cap on detector cost (!)• Oct. 78- Wilson resigns- Lederman new Dir.• Oct. 79- CDF Dept formed; Alvin Head of CDF• Giorgio had already approached Alvin – Pisa
is one of the founding institutions at formal start.
Fig. from TDR 1981
N.B.
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CDF Technical Design Report
Author List 1981
G. Bellettini, M.Bertani, L. Bosisio, C.Bradaschia, R.DelFabbro,E.Focardi, M.A. Giorgi, A.Menzione, L.Ristori, A.Scribano, G.Tonelli
S. Bertolucci,M.Cordelli, P. Giormini, P.Sermoneta
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HJF and HJ, eds.
Big Step- Technical Design Report
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Draft of Fig. 1 of TDR
Remarkable in that it’s what we built!
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1981 Vision of top, b-physics!
From Silicon Section of TDR- Aldo, Giorgio,…
Remarkable Paragraph (amazingly forsighted).
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The SVX- key to the top discovery and all CDF b-
physics
Critical Dev! Aldo,Giorgio, et al.
1981 TDR AS BUILT-92
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Central Hadron Calorimeters
1981 TDR AS BUILT
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The detector comes to life…82-85
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Some of the crew at work: B0
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More B0
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Giorgio’s Physics on CDF:
Long Interest in High-Pt pheno-mena (<1974)
Top Discovery (94/5)
Top Properties
Strong Drive for New Effects-
1975 Yerevan Lectures
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The Top “Evidence” and Discovery
Giorgio at the announcement
March 2, 1995; Giorgio Co-spokesperson
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1987 Integrated Luminosity (nb)
Run 2 Lum (pb)
Evolution of the Tevatron Collider
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CDF in the Present
Collisions at s-hat>1TeV2
CDF Run2 Inclusive Jet Spectrum
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(Evelyn Thompson’s ICHEP talk)
Run 2 Top Measurements--
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Mtop = 179.6 (stat) ± 6.8 (sys)
GeV/c2
+6.4-6.3
Run 2 Top Mass- l+jets
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Giorgio’s Other LongLasting Contributions:
Broad Italian Component
Many Generations of Excellent Young Students (preLHC-school)
Support for non-US physicists (Russians,others,…)
CDF presence at Conferences- La Thuile, PbarP, Elba,...
General Level of Culture- (next slide)
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Tita demonstrates typical Fermilab cuisine pre-Giorgio
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Thank you Giorgio- from all of CDF
The End
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• 33 tt candidate events– Fitted background fraction
CDF Run II – Multivariate Results
Fb = 0.34 ± 0.14
Mtop = 179.6 (stat) ± 6.8 (sys) GeV/c2
+6.4-6.3
This method will be more powerful with the future larger data sample
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First baby Bison born at Fermilab
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The VTX/SVX
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