B group status and plans Brad Abbott Sept 11, 2002.

Slides:

Advertisements

Similar presentations

High Level Trigger (HLT) for ALICE Bergen Frankfurt Heidelberg Oslo.

Advertisements

Investigations of Semileptonic Kaon Decays at the NA48 Еxperiment Milena Dyulendarova (University of Sofia “St. Kliment Ohridski”) for NA48 Collaboration.

Oct 14, 2003Vivek Jain – BNL Beauty Recent Results from D0 Vivek Jain Brookhaven National Lab (D0 Collaboration) Beauty 2003.

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

Tentative flow chart of CMS Multi-Muon analysis 1 – DATASETS 2 - RESOLUTIONS 3 – FAKE RATES 4 – NUCLEAR INT MODEL 5 – IP TEMPLATES MODEL 6 – SAMPLE COMPOSITION.

22/5/2011 Particle-ID and Tracking performance in CLIC_ILD1/27 CLIC_ILD particle identification and tracking performance J. Nardulli This talk in 2 parts:

Charm results overview1 Charm...the issues Lifetime Rare decays Mixing Semileptonic sector Hadronic decays (Dalitz plot) Leptonic decays Multi-body channels.

Measuring the bb cross- section using B  D o X   decays Liming Zhang & Sheldon Stone Syracuse University.

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.

1 Measurement of f D + via D +   + Sheldon Stone, Syracuse University  D o D o, D o  K -  + K-K- K+K+ ++  K-K- K+K+ “I charm you, by my once-commended.

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.

23 June 2005Kroll/Bedeschi1 Summary of 8 th CDF B Mixing Workshop Held morning of Thu 6/16/05 and Fri 6/17/05 Topics of discussion –status of updating.

1 BaBar Collaboration Randall Sobie Institute for Particle Physics University of Victoria.

June 2000Status of BELLE1 Beyond e + e - Workshop The Homestead Glen Arbor, MI Daniel Marlow BELLE Princeton University June 17, 2000.

July 2000Results from BELLE1 IV th Rencontres du Vietnam Hanoi, Vietnam Daniel Marlow BELLE Princeton University July 22, 2000.

A Method to measure  + /   detection efficiency asymmetry at LHCb Liming Zhang 08/15/07.

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

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

Measurement of the Branching fraction B( B  D* l ) C. Borean, G. Della Ricca G. De Nardo, D. Monorchio M. Rotondo Riunione Gruppo I – Napoli 19 Dicembre.

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.

Workshop on Quarkonium, November 8-10, 2002 at CERN Heriberto Castilla DØ at Run IIa as the new B-Physics/charmonium player Heriberto Castilla Cinvestav-IPN.

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.

Max Baak1 Impact of Tag-side Interference on Measurement of sin(2  +  ) with Fully Reconstructed B 0  D (*)  Decays Max Baak NIKHEF, Amsterdam For.

19/07/20061 Nectarios Ch. Benekos 1, Rosy Nicolaidou 2, Stathes Paganis 3, Kirill Prokofiev 3 for the collaboration among: 1 Max-Planck-Institut für Physik,

Trigger & Analysis Avi Yagil UCSD. 14-June-2007HCPSS - Triggers & AnalysisAvi Yagil 2 Table of Contents Introduction –Rates & cross sections –Beam Crossings.

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

Experience With CBM Muon Simulation Partha Pratim Bhaduri.

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

IOP HEPP: Beauty Physics in the UK, 12/11/08Julie Kirk1 B-triggers at ATLAS Julie Kirk Rutherford Appleton Laboratory Introduction – B physics at LHC –

Status of K S   e analysis C. GattiT. Spadaro Selection on data Selection on MC Efficiencies from data, K L   e, K S    ,      , bhabha.

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

Outline Detectors and Methods –Spectrometer layout –Segmented target, OOT cut effectiveness –CITADL Kaonicity pion ID effect on K-pi reflection –Target.

B-Tagging Algorithms for CMS Physics

LHCb: Xmas 2010 Tara Shears, On behalf of the LHCb group.

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

W/Z Plan For Winter Conferences Tom Diehl Saclay 12/2001.

Sergey Burdin FNAL DØ Collaboration 8/12/2005 Chicago Flavor New Bs Mixing Result from DØ.

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.

J/psi trigger status Alla Maevskaya INR RAS 11 March 2009 CBM Collaboration meeting.

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.

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

Fully Hadronic Top Anti-Top Decay (Using TopView) Fully Hadronic Top Anti-Top Decay (Using TopView) Ido Mussche NIPHAD meeting, Februari 9 th :

1 NCC Task Force Richard Seto NCC Task Force Meeting Jan 8, 2007 BNL.

B hadrons Tevatron By Eduard De La Cruz Burelo University of Michigan On behalf of the CDF and D0 collaborations Lancaster University UK, 2-8.

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

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.

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.

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

LHCbComputing Computing for the LHCb Upgrade. 2 LHCb Upgrade: goal and timescale m LHCb upgrade will be operational after LS2 (~2020) m Increase significantly.

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

Muon reco. efficiency status: from J/psi to Z T&P Giovanni Petrucciani (UCSD)

HI July Exercise and Muon DQM preparation Mihee Jo Mihee Jo / Lab meeting.

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

Processing large data sets Brad Abbott. Now J/Psi Starting with root-tuples Add 4-momentum to look for candidates Pick events (raw) -> reconstruct event.

Thursday, March 13th Z   had Z  had Preselection Efficiencies (muon) Backgrounds + Cuts Trigger Back to the Tau..and what remains to.

Living Long At the LHC G. WATTS (UW/SEATTLE/MARSEILLE) WG3: EXOTIC HIGGS FERMILAB MAY 21, 2015.

DOE REVIEW AUGUST 2006: CDF GROUP AT HARVARD MELISSA FRANKLIN - PROF JOAO GUIMARAES DA COSTA---PROF 25% SEBASTIAN GRINSTEIN - POST-DOC DANIEL SHERMAN -

1 D *+ production Alexandr Kozlinskiy Thomas Bauer Vanya Belyaev

Muon Reconstruction and Vertex Constraint Giovanni Abbiendi Bologna CMS meeting, 20 November 2007.

Status of the measurement of K L lifetime - Data sample (old): ~ 440 pb -1 ( ) - MC sample: ~125 pb -1 ( mk0 stream ) Selection: standard tag (|

ATLAS UK physics meeting, 10/01/08 1 Triggers for B physics Julie Kirk RAL Overview of B trigger strategy Algorithms – current status and plans Menus Efficiencies.

ATLAS B trigger Overview of B trigger Di-muon algorithms Performance (efficiency/rates) Menu for data taking experience 7/1/20101ATLAS UK Meeting,

Mats Selen, HEP Measuring Strong Phases, Charm Mixing, and DCSD at CLEO-c Mats Selen, University of Illinois HEP 2005, July 22, Lisboa, Portugal.

Contents First section: pion and proton misidentification probabilities as Loose or Tight Muons. Measurements using Jet-triggered data (from run).

Bs Physics and Prospects at the Tevatron

Mixing/Lifetime Needs

Presentation transcript:

B group status and plans Brad Abbott Sept 11, 2002

Very Near Term Trying to get number for average B lifetime (Earlier statement is that we are consistent with PDG) Addressing issues raised by EB Issues: Single/Double Gaussian for background Bias in vertexing J/Psi cross section Issues:Efficiencies

Very near term B group would like to have p12 available on the farms to allow us to use D0_mess(event stripper) This will allow us to generate large MC samples. Currently generating and verifying that p12 is working properly for B sample.

Near Term Studying different tracking algorithms MC Bs->Ds pi (Hadronic B decay) Bs->Ds e X (Semileptonic B decay) D*->D pi (Soft pion) J/Psi Ks (Ks reconstruction) Generic B decays

MC files These files allow us to see performance of many of the important issues needed for B physics. Event yields, pull distributions, vertex resolutions, flavor tagging etc. Efficiencies for various track definitions etc.

Tracking algorithms in Data J/Psi sample: Number of J/Psi, resolution, Psi`, B lifetime, B+ signal. Standard good run: Lambda, Ks, D->Kpi?

Triggers Many new triggers available for B physics: New dimuon triggers (studying performance) Trying to get a low Pt single muon trigger (needed for hadronic B decays -> Bs mixing). Best reach for  Ms for critical for large  Ms. Emphasis has been on muons No evidence of J/Psi in low Pt dielectron triggers.(2,2.5) EM trigger being prescaled away for now. Tracking trigger before low Pt electrons possible? Difficult to look at data from mu-e trigger since no criteria to search for low Pt electrons.

Muon ID Seeing low efficiency for using “Saclay” matching for J/Psi-> mu mu. Current matching is using ABC muons with Chisq>0 so does not work well for low Pt muons. Can track extrapolation code be sped up? Discussed with Gavin, some ideas are being investigated. Trying to find someone interested in pursuing this.

Other issues Streaming at L3: low Pt – high Pt stream, should be very useful for many B analyses. Have someone verifying streaming Would like ability to set bit to allow additional reco on interesting events. Being worked on.

Continuing to pick events Picking of interesting events (root files) Dimuons, single muons. These are often picked ~ 3 weeks after being written to tape. Picking of raw events, ~ 100/week to allow us to test latest reco code etc. Picking of small number of dimuon events soon after being collected to allow us to quickly see if problem with trigger, etc.

Other Issues Continuing to ensure that our code runs on thumbnails and contains necessary information for B physics Currently have 17 Thesis students working on B topics. Lambda_b, Chi_b, B_s mixing and Sin(2 Beta), CP violation

Walk before we can run Before we can do these analyses, we need to do more “bread and butter” physics. B lifetime, B+ signal, verify tagging performance, Bd mixing, Ks lifetime, Lambda lifetime. (Not as sexy so less interest from people, but necessary in order for people to believe our interesting results)

Conclusions Focusing on underlying issues: triggers, tracking, streaming etc. Results using muons encouraging, not so encouraging with electrons. Waiting for track trigger to increase data size.