Julia Thom, FNALEPS 2003 Aachen Rare Charm and B decays at CDF Julia Thom FNAL EPS 7/18/2003 Tevatron/CDF Experiment Decay Rate Ratios and CP Asymmetries.

Slides:

Advertisements

Similar presentations

Search for Top Flavor Changing Neutral Current Decay t → qZ Ingyin Zaw DOE Review August 21, 2006.

Advertisements

Gavril Giurgiu, Carnegie Mellon 1 B s Mixing at CDF Seminar at Fermi National Accelerator Laboratory Gavril Giurgiu Carnegie Mellon University August 16,

0 25. Sept 2006 M.Smizanska, Lancaster University, UK LHC preparations for precise measurements of muonic very rare B-decays 25. Sept 2006 M.Smizanska,

August 12, 2000DPF Search for B +  K + l + l - and B 0  K* 0 l + l - Theoretical predictions and experimental status Analysis methods Signal.

1 Rare Decays of B Hadrons at CDF Matthew Jones October 3, 2005.

ICFP 2005, Taiwan Colin Gay, Yale University B Mixing and Lifetimes from CDF Colin Gay, Yale University for the CDF II Collaboration.

FPCP 2002, 05/16-18/2002 p. 1 Richard E. Hughes, The Ohio State UniversityCDF Run II Status Status of CDF and Prospects Flavor Physics and CP Violation.

Search for B s oscillations at D  Constraining the CKM matrix Large uncertainty Precise measurement of V td  properly constrain the CKM matrix yield.

22 July 2005Mauro Donega HEP20051 B s lifetimes in hadronic decays at CDF Mauro Donegà Université de Genève on behalf of the CDF collaboration.

1 B s  J/  update Lifetime Difference & Mixing phase Avdhesh Chandra for the CDF and DØ collaborations Beauty 2006 University of Oxford, UK.

The new Silicon detector at RunIIb Tevatron II: the world’s highest energy collider What’s new?  Data will be collected from 5 to 15 fb -1 at  s=1.96.

1 Rare Decays At the Tevatron Cheng-Ju S. Lin (Fermilab ) BEAUTY 2006 OXFORD 28 September 2006.

On the Trail of the Higgs Boson Meenakshi Narain.

B s and Λ b Lifetimes and BRs at the Tevatron Satyajit Behari (For the CDF Collab.) Johns Hopkins Univ., Baltimore,USA 25 th September 2006 Beauty 2006,

Chris Barnes, Imperial CollegeWIN 2005 B mixing at DØ B mixing at DØ WIN 2005 Delphi, Greece Chris Barnes, Imperial College.

B Production and Decay at DØ Brad Abbott University of Oklahoma BEACH 2004 June 28-July 3.

B physics: new states, rare decays and branching ratios in CDF Vyacheslav Krutelyov Texas A&M University For CDF Collaboration July 1, 2004 BEACH04 Chicago,

Beauty 2006 R. Muresan – Charm 1 Charm LHCb Raluca Mureşan Oxford University On behalf of LHCb collaboration.

Donatella Lucchesi1 B Physics Review: Part II Donatella Lucchesi INFN and University of Padova RTN Workshop The 3 rd generation as a probe for new physics.

B S Mixing at Tevatron Donatella Lucchesi University and INFN of Padova On behalf of the CDF&D0 Collaborations First Workshop on Theory, Phenomenology.

Alexander Khanov 25 April 2003 DIS’03, St.Petersburg 1 Recent B Physics results from DØ The B Physics program in D Ø Run II Current analyses – First results.

B c Results from CDF II Satyajit Behari (For the CDF Collab.) Johns Hopkins Univ., Baltimore,USA 23 rd Jul HEP2005 Europhysics Conference, Lisboa,

B c mass, lifetime and BR’s at CDF Masato Aoki University of Tsukuba For the CDF Collaboration International Workshop on Heavy Quarkonium BNL.

Gavril Giurgiu, Carnegie Mellon, FCP Nashville B s Mixing at CDF Frontiers in Contemporary Physics Nashville, May Gavril Giurgiu – for CDF.

ICHEP 2002 First Heavy Flavor Results Using the Silicon Vertex Trigger A. Cerri.

Search for B s →  +  - and B d →  +  - Decays at CDF Cheng-Ju Lin (Fermilab) Representing CDF Collaboration SUSY 2004 Tsukuba, Japan June 17, 2004.

Search for Rare Decays of the B S Meson at the Tevatron Ralf Bernhard University of Zurich XLIst Rencontres de Moriond QCD 19 th March 2006.

CDF Status and Prospects for Run 2 Tara Shears. Introduction Accelerator / detector overview: Tevatron overview CDF overview Luminosity Physics prospects.

Pavel Krokovny Heidelberg University on behalf of LHCb collaboration Introduction LHCb experiment Physics results  S measurements  prospects Conclusion.

1 Rare Bottom and Charm Decays at the Tevatron Dmitri Tsybychev (SUNY at Stony Brook) On behalf of CDF and D0 Collaborations Flavor Physics and CP-Violation.

Beautiful B Physics at the Tevatron IOP HEPP half day meeting Results From the Tevatron Imperial College London, 21 September 2005 Rick Jesik Imperial.

Searches for the Standard Model Higgs at the Tevatron presented by Per Jonsson Imperial College London On behalf of the CDF and DØ Collaborations Moriond.

1 EPS2003, Aachen Nikos Varelas ELECTROWEAK & HIGGS PHYSICS AT DØ Nikos Varelas University of Illinois at Chicago for the DØ Collaboration

3/13/2005Sergey Burdin Moriond QCD1 Sergey Burdin (Fermilab) XXXXth Moriond QCD 3/13/05 Bs Mixing, Lifetime Difference and Rare Decays at Tevatron.

CHARM MIXING and lifetimes on behalf of the BaBar Collaboration XXXVIIth Rencontres de Moriond  March 11th, 2002 at Search for lifetime differences in.

Lukens - 1 Fermilab Seminar – July, 2011 Observation of the  b 0 Patrick T. Lukens Fermilab for the CDF Collaboration July 2011.

B Masses and Lifetimes at the Tevatron Satoru Uozumi University of Tsukuba Duke University.

Chunhui Chen, University of Pennsylvania 1 Heavy Flavor Production and Cross Sections at the Tevatron Heavy Flavor Production and Cross Sections at the.

Paul Balm - EPS July 17, 2003 Towards CP violation results from DØ Paul Balm, NIKHEF (for the DØ collaboration) EPS meeting July 2003, Aachen This.

Sinéad M. Farrington University of Liverpool for the CDF and D0 Collaborations Beauty st June 2005 Rare Decays at the Tevatron.

1 Sinéad M. Farrington University of Oxford for the CDF Collaboration HQL 15 th October 2010 Rare B and D Decays at CDF.

Mauro Donega’ - CDF collaboration meeting February 3, 2006 B d,s ->h 1 h 2 : BR, CP asymmetries, and lifetimes S. Budroni, S. Donati, M. Donega’, S. Giagu,

Matthew Martin Johns Hopkins University for the CDF collaboration andBranching Ratios from Flavor Physics & CP Violation Ecole Polytechnique, Paris, France.

Mike HildrethEPS/Aachen, July B Physics Results from DØ Mike Hildreth Université de Notre Dame du Lac DØ Collaboration for the DØ Collaboration.

B Production Cross Sections and Fragmentation Fractions at LHCb Laurence Carson (University of Santiago de Compostela) on behalf of the LHCb collaboration.

Susan Burke DØ/University of Arizona DPF 2006 Measurement of the top pair production cross section at DØ using dilepton and lepton + track events Susan.

First physics results with the Silicon Vertex Trigger at CDF-II 2 nd Workshop on the CKM Unitarity triangle. April 5 th -9 th IPPP Durham, England, UK.

1 Arnold Pompoš, SUSY03, Tucson, Arizona, June 5-10, 2003.

4/12/05 -Xiaojian Zhang, 1 UIUC paper review Introduction to Bc Event selection The blind analysis The final result The systematic error.

Penny Kasper Fermilab Heavy Quarkonium Workshop 21 June Upsilon production DØ Penny Kasper Fermilab (DØ collaboration) 29 June 2006 Heavy Quarkonium.

Kalanand Mishra June 29, Branching Ratio Measurements of Decays D 0  π - π + π 0, D 0  K - K + π 0 Relative to D 0  K - π + π 0 Giampiero Mancinelli,

DØ Beauty Physics in Run II Rick Jesik Imperial College BEACH 2002 V International Conference on Hyperons, Charm and Beauty Hadrons Vancouver, BC, June.

Rare decays of charm & bottom atTevatron  Introduction  Tevatron  CDF & DØ Detector  Rare charm decays  Rare bottom decays  Summary & Conclusions.

Moriond QCD March 24, 2003Eric Kajfasz, CPPM/D01 b-production cross-section at the TeVatron Eric Kajfasz, CPPM/D0 for the CDF and D0 collaborations.

Michael Milnik (University of Karlsruhe) for the CDF Collaboration Search for Rare b-Hadron Decays at CDF II HEP 2007, Manchester.

Sinéad Farrington University of Glasgow for the CDF Collaboration European Physical Society Aachen, 17 th -23 rd July 2003 B Lifetimes and Flavour Tagging.

Sinéad M. Farrington University of Liverpool for the CDF Collaboration ICHEP 28 th July 2006 Rare B Decays at CDF.

Jessica Levêque Rencontres de Moriond QCD 2006 Page 1 Measurement of Top Quark Properties at the TeVatron Jessica Levêque University of Arizona on behalf.

La Thuile, March, 15 th, 2003 f Makoto Tomoto ( FNAL ) Prospects for Higgs Searches at DØ Makoto Tomoto Fermi National Accelerator Laboratory (For the.

Recent D0 results on Quarkonium HAN, Liang Univ. of Science & Technology of China Univ. of Manchester presenting D0 Collaboration ( commented by Rick Van.

Semi-Leptonic B s Mixing at DØ Meghan Anzelc Northwestern University On Behalf of the DØ Collaboration DPF 2006.

A.RuizBEACH2000 CP Violation and B-mixing in CDF-II IV International Conference on Hyperons, Charm and Beauty Hadrons June, 27-30, 2000 Valencia,Spain.

Search for Standard Model Higgs in ZH  l + l  bb channel at DØ Shaohua Fu Fermilab For the DØ Collaboration DPF 2006, Oct. 29 – Nov. 3 Honolulu, Hawaii.

K. Holubyev HEP2007, Manchester, UK, July 2007 CP asymmetries at D0 Kostyantyn Holubyev (Lancaster University) representing D0 collaboration HEP2007,

Upsilon production and μ-tagged jets in DØ Horst D. Wahl Florida State University (DØ collaboration) 29 April 2005 DIS April to 1 May 2005 Madison.

Search for Anomalous Production of Multi-lepton Events at CDF Alon Attal Outline  Motivation  R p V SUSY  CDF & lepton detection  Analysis  Results.

1 Rare B Decays At CDF Michael Weinberger (Texas A&M University ) For the CDF Collaboration DPF 2006 November 1, 2006.

Rare and Forbidden Charm Meson Decays in FOCUS

CP violation in Bs→ff and Bs → K*0K*0

Susan Burke, University of Arizona

Presentation transcript:

Julia Thom, FNALEPS 2003 Aachen Rare Charm and B decays at CDF Julia Thom FNAL EPS 7/18/2003 Tevatron/CDF Experiment Decay Rate Ratios and CP Asymmetries of Cabibbo suppressed D 0 decays Search for D 0 →  Search for B 0 s,d → 

Julia Thom, FNALEPS 2003 Aachen The Tevatron Main Injector (new) Tevatron DØCDF Chicago   p source Booster Tevatron Upgrade: Higher Bunch Crossing Rate: 396 ns 5-10 higher target lumi than RunI Higher C.o.M Energy RunI:1.8 TeV RunII:1.96 TeV

Julia Thom, FNALEPS 2003 Aachen Tevatron Performance Record lumi.: cm -2 s -1 (~factor 2 better than RunI) Improving slowly 4-7 pb -1 per week For CDF: Current:~200 pb -1 to tape For this talk: ~65pb -1 w/all important Systems on (Feb.2002-Feb2003) delivered To tape Delivered To tape

Julia Thom, FNALEPS 2003 Aachen The CDF Run II Detector New DAQ Track based trigger at L1 (XFT) Impact parameter trigger at L2 (SVT) (by far most important upgrade for B and charm) New Silicon system –7-8 layer silicon detector (up to |  |~2) Improved b-tagging Extended muon systems (to |  |~1.5) Time of flight detector(particle ID) New central drift chamber –Detector upgrades give new charm and bottom physics program –Charm Results already competitive with world’s best

Julia Thom, FNALEPS 2003 Aachen Silicon Vertex Trigger Includes ~33  m beamspot  =47  m Online IP resolution from SVT Level 1 track trigger: high p t Level 2 track trigger: large d 0 Improves RunI sensitivity by 4-5 orders of magnitude CDF as “Charm Factory” ~million D 0 ’s per 100 pb -1 Triggers used in this talk: Two track trigger 2 tracks p t >2GeV, d 0 >120mm,  p t >5.5 GeV Rare B trigger 2 muons with momentum/vertexing requirements

Julia Thom, FNALEPS 2003 Aachen Decay Rate Ratios of Cabibbo Suppressed D0 Decays TH: R(KK/  )<1.4 Ex: ~2.5 (world average) (difference prob. due to FSI) Many systematics (trigger, reconstruction..) cancel in ratio Relative acceptance estimated from MC + realistic simulation

Julia Thom, FNALEPS 2003 Aachen Use triggered track pairs Combine D 0 with soft  for D* No particle ID D*/D0 Signal Extraction Selection cuts: D 0 Impact Parameter 5.5 GeV D 0 L xy >350  m m(D*)-m(D 0 ) 3  around expexted value Extract number of signal&bkg events from fits : D*→D 0  →[K  8320 D*→D 0  →[K  3697 D*→D 0  →[ 

Julia Thom, FNALEPS 2003 Aachen Monte Carlo Input Relative Acceptance Corrections from MC Different efficiencies due to: Nuclear Interactions of K/ , K + /K - ,K decay length trigger bias (due to different opening angle) Using realistic detector simulation:

Julia Thom, FNALEPS 2003 Aachen Decay Ratios: Results  (D 0  KK)/  (D 0  K  = 9.38  0.18(stat)  0.10(syst) %  (D 0   )/  (D 0  K  =  0.076(stat)  0.036(syst) % Competitive with FOCUS 2003:  (D 0  KK)/  (D 0  K  = 9.93  0.14  0.14 %  (D 0   )/  (D 0  K  = 3.53  0.12  0.06 %

Julia Thom, FNALEPS 2003 Aachen CP asymmetries of Cabibbo Suppressed D 0 decays TH: O(10 -3  ) NP can enhance the CP-violation rate Soft  charge tags D 0 flavor: q(  soft )>0: D 0 q(  soft )<0:D 0 bar Need to correct observed asymmetries for intrinsic charge asymmetry of CDF detector (soft tracks) Study charge asymmetry as a function of soft  p t

Julia Thom, FNALEPS 2003 Aachen Charge Asymmetry in the CDF Detector Study asymmetry using unbiased tracks and correct Residual asymmetry syst.error (Expect no CP asymmetry) (same track quality cuts generic track sample)

Julia Thom, FNALEPS 2003 Aachen CPV: Results  CP (D 0  KK) = 2.0  1.7 (stat)  0.6 (syst) % A CP (D 0   ) = 3.0  1.9 (stat)  0.6 (syst) % CLEO results: Plan: redo analysis for 8-10 times statistics

Julia Thom, FNALEPS 2003 Aachen Search for FCNC D 0 →  SM expectation BR~ 3* Best limit: <4.1x10 -6 (90% CL) (Beatrice/WA92, E771) BR significantly enhanced with New Physics (e.g. R-Parity Violation Susy: ~3.5*10 -6 ) Events from two-track trigger use first 63pb -1 of data Normalize to D 0 →  to cancel acceptance and trigger effects Only relative efficiency needed

Julia Thom, FNALEPS 2003 Aachen Normalization Mode: D 0 →  Search window: 1.84<m<1.884 GeV Selection: intersect D 0 with soft  0.144<m(D*)-m(D 0 )<0.147 Optimized cuts: L xy <0.45 cm, |d xy |<0.015cm, Angle cut between track and muon stub, Track quality cuts N(  ) = 1371  53 Relative efficiency from Monte Carlo: ( muon reconstruction and  decay in flight efficiency) KK

Julia Thom, FNALEPS 2003 Aachen Background Fakes from  misidentification: N( D 0 →  ) in mass window times (misid probability) 2 : Estimate combinatorics from high mass sideband where both tracks are muons Fakes: 0.22  0.02 eventsCombinatorics:1.5  0.7 events From D* tagged D 0 →   misid probability

Julia Thom, FNALEPS 2003 Aachen FCNC D 0 →  : Results BR( D 0 →  )<2.4x10 -6 (90% CL) Factor 2 improvement over best limit M(  ) with D* tag and 2 muons 1.7 expected events, 0 observed events: N cl =2.3 Next: use full muon coverage and 2-3 times more data (~1year) also look at D + →  D + →K  D 0 →  e, D s

Julia Thom, FNALEPS 2003 Aachen Search for FCNC B s,d →  BR( B s 0 →  )~10E-9 in SM Best published limit:2.6 10E-6 at 90% C.L.(CDF) Can be enhanced by >2 orders of magnitude in SUSY scenarios Particular interest: hand in hand with deviations of (g-2)   hep-ph  Relevant part predicts :10 -8 Observable in Run II If true, m(h)~120 GeV Lots of theoretical interest

Julia Thom, FNALEPS 2003 Aachen B s →  search method Acceptance estimated from MC (|y(B)| 6 GeV), Trigger and reconstruction efficiency from data Analysis cut efficiency from MC (x-check with B + →J/Psi data) B s cross-section: assume B d :B s 3:1 Discriminating variables: Dimuon Inv.mass (m   around PDG  Lifetime (c  m  Pointing angle (  phi  rad  Isolation of Bs candidate (iso>0.65)

Julia Thom, FNALEPS 2003 Aachen Background Estimate background from sideband (Heavy flavor contr. <10 -9 ) If correlations between cut variables small Factorize background estimate Background: events

Julia Thom, FNALEPS 2003 Aachen B s →  Sensitivity Current estimated sensitivity optimized cuts and 65 pb-1 of data: BR(B s →  ) < RunI limit: BR(B d →   not opened the box yet, will include 2-3 times the data and full muon coverage soon

Julia Thom, FNALEPS 2003 Aachen Conclusions First Results on Rare Charm (and B) decays at CDF Decay ratios and CPV of Cabibbo suppressed D 0 decays already competitive/best sensitivity FCNC searches: best limits D 0 →  factor 2 improvement over best publ. limit B s →  expect to improve RunI limits soon!