CDF実験の30年金信弘(筑波大学数理物質系)日本物理学会第67回年次大会於関西学院大学2012年3月25日2007年度～宇宙史一貫教育プログラム筑波大で素粒子・原子核・宇宙観測を統合的に教育。 2011年度修士21名CDF,RHIC,LHC,電波望遠鏡観測,宇宙赤外線観測。博士15名
Helen Edwards dumps the TeV beam Fermilab Today 2011/10/3 http://www.fnal.gov/pub/tevatron/milestones/interactive-timeline.html テバトロン30年史
1979:  Sho Ohnuma and R. Yamada indicated that K. Kondo and several other Japanese we in the U. S. looking for ways to collaborate in HEP.  I met them at a Conference at BNL and told them about our plans for a colliding beams experiment at FNAL.  They came to visit and met with Lederman.  The collaboration with CDF was finalized at the end of the year! Fermi News:  Dec 1979 1980:  Italians joined CDF 1981:  Conceptual Design Document 1982, July 1.  CDF Construction Begins! Start construction of pbar source. 1983,  July 3.  First Beam in Tevatron! 1985,  Oct. 13.  First Collisions at CDF
Alvin Tollestrup, Hawaii, Japan-US Accord
CDF Design Report (1981) DESIGN REPORT FOR THE FERMILAB COLLIDER DETECTOR FACILITY (CDF) AUGUST, 1981 Number of Collaborators   87
Design Report   (1981) Country： 3 # Institutions : 13 # Members : 87 9 USA 57 (66%) Italy
2 Japan 2 Run I  (1995  Observation of Top Quark Production)

# Fermilab Today
Monday, July 18, 2011 Subscribe | Contact Us | Archive | Classifieds | Guidelines | Help Search GO
Have a safe day! Monday, July 18 PARTICLE ASTROPHYSICS SEMINARS WILL RESUME IN THE FALL 2 p.m. LHC Physics Center Topic of the Week Seminar - Sunrise WH11NE Speaker: Daniel Elvira, Fermilab Title: SUSY Searches III: CMS Results 2:30 p.m. Joint Experimental- Theoretical Physics Seminar - One west Speaker: Mark Hartz, University of Toronto/York University Title: Results from T2K: Indication of Electron Neutrino Appearance in a Muon Neutrino Beam 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Fir X-Over 4 p.m.
In Memoriam: Kuni Kondo
Kuni Kondo Professor Kuni Kondo, an innovator and leader in particle physics, passed away unexpectedly on May 12 in Tokyo after a brief illness. He was 76. Professor Kondo began his career as a research associate at the University of Tokyo in 1962 after receiving his Ph.D. in physics. He continued his career at Yale University where he worked with an international particle physics collaboration while using particle beam accelerators. He worked as an assistant and then a full professor at the University of Tokyo and First Collision(1985.10) Engineering RUN (1987.1 – 1987.5) 27nb-1 RUNO (1988.9 – 1989.4) 4.4pb-¹ RUN1 (1992.8 – 1996.3) 130pb-1 1994.7  Top Evidence 1995.4  Top Observation 1998.12  By Observation ● RUN2 (2001.6 – 2011.9.30) 10.0fb-1 2006.3    Precision Mtop △Mtop=3GeV→MH<186GeV 2006.12  Observation of B , Oscillation 2011.7   Direct Higgs Search Exclude M H of 156GeV-177GeV
( )
- Superconducting Solenoid Coil - PEM Resistive Plastic Tube Chamber + Pb, whole Structure, Readout - CEM Scintillator,  WLS shifter - VTPC Readout -CMUP Readout -DST Production - Data logger
Superconducting Solenoid Coil Superconducting solenoid coil was made at Hitachi company in a collaboration with University of Tsukuba and Fermilab. People at University of Tsukuba and KEK in front of the CDF detector with a Superconducting solenoid coil installed in 1984.
PEM prototype completed in 1983. Plug ElectroMagnetic Calorimeter (PEM) The gas proportional chamber with resistive plastic tubes for PEM was developed at Tsukuba. Testbeam calibration of PEM was done by University of Tsukuba and KEK members. A whole PEM is being installed at B0 assembly hall after the calibration of testbeam in 1986. A PEM quadrant module.
Central ElectroMagnetic Calorimeter (CEM) Scintillator and wavelength-shifter were procured and tested in Japan.  The assembly of scintillator was done based on the light yield and thickness measured in Japan.   University of Tsukuba and KEK worked on the cosmic ray test and testbeam calibration of CEM.
Central Muon chamber Upgrade
TCMUPT Tsukuba group has made the front-end electronics boards for signal readout and HV distribution. The QC system (gas, HV) was designed and brought to U of Illinois.
- PEM Scintillating Tile/Fiber Unit,  Structure - SVX II Silicon sensors -ISL Silicon sensors - TOF Finemesh PMT - CPR2 Multianode PMT - DST Production - Data logger - Online monitor CDF実験の物理成果

Run 0
1. Anomalous J/ V production  570, 223, 301, 346
Measurement of the $J/Vpai$ meason and $b–$hedron production cross sections in $pkber(p)$ collisions at $Vsqrt(s) = 1980$ GaV.Phys.Rev.D71:032001,2006. | Cited 570 times. RU Production of $J/#pei$ mesons from $VchLo$ meson decays in $p¥ber{p}$ oollisions at $Vegr{s} = 1.8$ TeV. Phys.Rev.Lett.79:578-583,1997. | Cited 223 times RUN1 $J/Vpsi$ and $Vpsi(2S)$ production in $pVber(p)$ oollisions at $Vsqrt(s) = 1.8$ ToV. Phys.Rev.Lett.79:572–577,1907. | Cited 301 times.RUN1 Inclusive $J/Vpsi$, $Vpsi(2S)$ and $b$ quark production in $Vbsr(p)p$ collisions at $Vegrt(a) = 1.8$ TeV. Phys.Rev.Lett.09:3704-3708,1992. | Cited 346 times
235, 269, 279
2. Wboson mass
Measurement of the $W$ boson mass. Phys.Rev.D52:4784-4827,1995. | Cited 235 times    RUN1 A Measurement of the $W$ boson mass in 1.8 TeV $¥bar(p)p$ collisions.  Phys.Rev.D43:2070-2093,1991. | Cited 269 times A Measurement of the $W$ boson mass.Phys.Rev.Lett.65:2243-2248,1990. | Cited 279 times
3.
Three jet events
405
The Topology of three jet events in $Wbar(p)p$ collisions at $Wsqrt(s) = 1.8$ ToV.  Phys.Rev.D45:1448-1458,1992. | Cited 405 times
4.
Charged particle dn/d η
405
Pseudorapidity distributions of charged particles produced in $$bar(p)c$ interactions at $$sqr(is) = 630$ GeV and 1800 GeV.  Phys.Rev.D41:2330,1990. | Cited 210 times
5.  Total cross section
287
Measurement of the $¥bar(p)p$ total cross-section at $¥sqrt(s) = 546$ GeV and 1800-GeV. Phys.Rev.D50:550-5561,1994. Cited 287 times
6.
251
Top quark search
A search for the top quark in the reaction $Vbar(p) p ¥to e + {Vrm jets)$ at $Vsqrt(s) = 1.8$ ToV. Phys. Rev. Lett. 04:142–148,1990. | Cited 251 times 210 7.  Charged particle p- distribution Transverse momentum distributions of oherged perticles produced in $Weefplp$ interactions at $Weefplp$ interactions at $Weefplp$ interactions at $Weefplp$ interactions and
CDF実験高引用数(＞200)論文( Run1)
Run 1
8.  Top Quark Discovery     1902, 660, 810
Observation of top quark production in $Wbar(p)p$ collisions. Phys.Rev.Lett.74:2626-2631,1995. | Cited 1902 times Evidence for top quark production in $War(p)$ collisions at $Wart(s) = 1.8$ ToV.  Phys.Rev.Lett.73:225–231,1994. | Cited 660 times Evidence for top quark production in $Vbar(p)p$ collisions at $Vsqrt(a) = 1.8$ ToV.      Phys.Rev.D50:2966-3026,1994. | Cited 810 times
9.   Bc Discovery   215, 203
Observation of the $B_c$ meson in $p¥ber{p}$ collisions at $Vegrt{s} = 1.8$ TeV. Phys.Rev.Lett.81:2432-2437,1998. | Cited 215 times Observation of $B_c$ mesons in $p¥bar(p)$ collisions at $¥sqrt(s) = 1.8$ ToV.Phys.Rev.D58:112004,1998. | Cited 203 times
331
10.  Inclusive jet
Inclusive jet cross section in ${%bar p p}$ collisions at $Vsqrt{s}=1.8$ ToV.Phys.Rev.Lett.77:438-443,1996.| Cited 331 times
11. sin 2 β    266
A measurement of $Wein(2Wbeta)$ from $B Wto J/Wpsi K°0_$$ with the (CDF) detector. Phys.Rev.D61:072005,2000. | Cited 266 times
Run 2 12. Bs oscillation 428, 232 Observation of BO(s) - anti-BO(s) Oscillations. Phys.Rev.Lett.97:242003,2006. | Cited 428 times Measurement of the B^O_{s}-¥ber{B}^O_s Oscillation Frequency. Phys.Rev.Lett.97:062003,2006. | Cited 232 times 13.  Top pair production cross section  244 Measurement of the t¥ber{t} production cross section in p¥ber{p} collisions at $¥sqr{s} = 1.96$ ToV using lepton + jets events with secondary vertex b-tagging. Phys.Rev.D71:052003,2005. | Cited 244 times 14. X(3872) 391 Obeervation of the narrow state X(3872) #to J/Wpsi ¥pf * ¥pf − in ¥ber(p)p  collisions at ¥eqrt(s) = 1.96 TeV. Phys.Rev.Lett.93:072001,2004. | Cited 391 times 15.  CP violaton in Bs → J/ V Ø decay 235 First Flavor–Tagged Determination of Bounds on Mixing–Induced CP Violation in B 0.[s] Wto J/Wpsi Wphi Decays. Phys.Rev.Lett.100:161802,2008. | Cited 235 times 16.  Search for Bs → μ μ and Bd → μ μ and J/ψ φ decay 211 Search for B´0_(s) Vto Vmu´(+) Vmu´(+)  and B´0_(d) to mu´(+) Vmu´(+) decays with 2fb´(-1)  of p Vbar(p) collisions.  Phys.Rev.Lett.100:101802,2008. | Cited 211 times 17. ttbar forward-backward asymmetry  185, 154 Evidence for a Mass Dependent Forward-Backward Asymmetry in Top Quark Pair Production. Phys.Rev.D83:112003,2011. | Cited 185 times Forward-Baokward Asymmetry in Top Quark Production in $p¥ber{p}$ Collisions at $eqrt{s}=1.86$ TeV. Phys.Rev.Lett.101:202001,2008. | Cited 154 times 18. Single top production   171 First Observation of Electroweak Single Top Quark Production.Phys.Rev.Lett.103:092002,2009. | Cited 171 times
CDF実験重要論文（Run2）
Run 2
19.  Direct Higgs Search  86, 53
Combination of Tevatron searches for the standard model Higgs boson in the W+W− decay mode.Phys.Rev.Lett.104:061802,2010. | Cited 86 times Combined CDF and D0 Upper Limits on Standard Model Higgs Boson Production with up to 8.2 fb$"[-1]$ of Data.: arXiv:1103.3233 | Cited 53 times
20.  Top Quark Mass  111
Top quark mass mossurement using the tomplate method in the lepton + jets channel at CDF II. Phys.Rev.D73:032003,2006. | Cited 111 timesトップクオークの発見
S a m w l a t i d n s IR e v i e w s 20 m all ifのif o Big o By (CIDIF 182 DD D 59 pages report on simulation study by 15 CDF Japan members for the CDF Engineering Run in 1987. Contents • Minimum Bias Events and Background - QCD Jets • Electron and Missing Transverse Energy in QCD Jets - W, Z Bosons - Top Quark Centauro Search at CDF e Gluino and Squark Events with Missing ET Trigger - Triggers for CDF '86-'87 Run Jet reconstruction is crucial for top quark search. Jet energy scale CDF/JET/ANAL/ CDFR /798 November 11,1988 Inclusive  Jet  Production  Cross  Section in pp collisions at  √ s = 1.8 TeV A.Yamashita,  S.Kim,  K.Kondo, S.Mi M.Shibata,  K.Takikawa and K.Yas Institute of Physics. University of Tsukuba Ibaraki 305,  Japan 1. Introduction. 2. Apparatus and Data Acquisition. 3. Analysis Procedures.... 3.1. Background Subtraction and Clustering Algor 3.2. Jet Energy Correction ..... 3-2-A.    Jet Energy Correction with ISAJET and Pl 3-2-B.  Decomposition of Jet Energy Correction 3-2-C. π 0 / γ + jet event 3.3. Correction for Acceptance and Energy Resolu 3.4. Trigger efficiency . 4. Results and Discussions ...... 4.1 Inclusive Jet Production Cross Section 4.2. Jet shape We showed that we can use γ -jet E r balancing for the  jet energy calibration. Report on Top Quark Mass Analysis at the CDF Collaboration Meeting Update on PLR Analyses ( Dilepton and W ( → ev or μν ) + ≥ 4 jets channels ) July 15, 1993 S. Kim, K.Kondo and R.Oishi 1 DLM Analysis in the dilepton channel KLM Analysis in the W ( → ev or μν ) + ≥ 4 N jets &hannels Use Likelihood of only propagator and detector resolution. Almost the same as the present top mass fitter. ● Parton Level full Reconstruction ( PLR ) — Likelihood Method with the use of Dy- namics ( DLM ) — Likelihood Method with Kinematics only ( KLM ) ● DLM mass distribution of three dilepton top candidates has an average of 155 GeV in Joint Probability. ● We performed KLM analysis on the W ( → μ or e +ν ) + ≥ 4 jets data in the CDF 92/93 run ( integrated luminosity of 20 pb-1). We had an overlapping with two SVX_b_tagging events with a mass around 180 GeV, 10 Cobal-Grassman events with mass from 120 to 180 GeV and 7 Sliwa events with a mass from 120 to 190 GeV. |KLM mass distribution for W + ≥ 4 jets data shows some enhancements around 150 GeV ( about 20 events ) and 180 GeV ( about 7 events ). We need more VECBOS W + jets events to estimate the background mass spectra. SVX b-tag   2 events. The masses of these two events were consistent with those reported by LBL group in this meeting. CDF/TOP/PHYS/2401 December 23, 199 Five months later, Comparison of fitting methods on top candidate events Nine months later, CDF published “Evidence for Top Quark Production”. J.Lys, M.Binkley, L.Galtieri, B.Harral, S.Kim, K.Kondo, K.Sliwa,
● Dileptonチャンネル コt t → W+ b W− b → l + l − n n b b事象選別の信号:  l +,  l −,  missing ET ,  2 jets © b taggingは要求しない。 ● Lepton + Jetsチャンネルt t → W + b W − b → I± n q' q b b事象選別の信号:  l ±,  missing ET , ≥3 jets,  b tagging ● Multi-Jets ( All Hadronic )チャンネルt t → W + b W − b → q q' q b b事象選別の信号:   ≥5 jets, S ET ,  b tagging b tagging: © silicon vertex detector (SVX)でbの崩壊点を検出。
e + 4 jet event 40758_44414 24-September, 1992 TWO jets tagged by SVX fit top mass is 170 +- 10 GeV e+, Missing E+, jet #4 from top jets 1,2,3 from top ( 2&3 from W )
質量分布(Lepton + 4 jets事象の再構成) = 174 ± 10 (統計) +13/-12(系統) GeV/c² M top σ( t t ) = 13.9 +6.1/−4.8 pb質量分布から求めた信号の統計的有意性: P = 2.0%   (2.3 σ ) Countingとmass spectraを総合した統計的有意性: P = 0.057%   (3.5 σ )トップクォーク生成の確認Run 1A +1B ;  67 pb-1 の結果  PRL('95)
三つを総合した統計的有意性:P = 1x10 –6(4.8 σ )質量分布(Lepton + 4 jets事象の再構成) M top = 176 ± 8 (統計) ± 10 (系統) GeV/c² σ ( t t ) = 6.8 +3.6/−2.4 pb B c中間子の発見B s中間子の粒子反粒子振動の初観測B。中間子の発見CDF RUN I Observation of Bc meson in N(B e ) =  20.4+6.2 τ(Bc) = 0.46±0.18 ps σ(pp → Bc X)BR(Bc → J / ψℓ v) _ = 0.132 - 0.052 σ(pp → BuX)BR(Bu → J / ψK) J. Suzuki     PhD Thesis (1998) (pT > 4,| y | < 1) = 0.284±0.040(stat.)±0.043(yield)±0.065(acceptance) M. Aoki, PhD Theses This plots assume: – flavor tagging: add same-side kaon tagging ε D² = 1.6 + 3.0% –  Vertex resolution: improved by 20% –  Trigger bandwidth: utilize 50% of CDF data 5 σ observation: L=2 fb-¹ : Δmsく15 ps-¹ L=8 fb-¹ : Δmsく22 ps-¹