LIA-FKPPL Workshop, KIAS, Seoul, March 8-9, 2011.

KIhyeon Cho (KISTI) and Aurore Savoy-Navarro (CNRS-IN2P3)

Beyond CDF:Defining a new project

Contents

• The French and Korean LIA teams in 2010

• Report on CDF in 2010

• Beyond CDF: Defining a New Project

2

France Group

Aurore Savoy-Navarro

(LPNHE/IN2P3-CNRS)

Matteo Corbo

(PhD UPMC & FNAL)

Valeri Saveliev

Associated LPNHENidal Ershaidat

Associated LPNHE

Nicola d’Ascenzo

Associated LPNHE

Kihyeon Cho (KISTI)

+ 3 Postdocs

Intae Yu (SKKU)

+ 1 student

Soo-Bong Kim (SNU)

+ 2 Postdocs

Kyungkwang Joo (CNU)

+ 2 students

Korea Group Korea Group

4

Byungwon Ko (KIAS)

+ 1 Postdoc

Dong Hee Kim (KNU)

+ 1 Postdoc

France members & research topics

Name Topic of research

Dr. Aurore Savoy-Navarro

Bs PhysicsTop/Higgs into τ lepton(s)

Prof. Valeri Saveliev Bs Physics

Dr Nicola d’Ascenzo Bs Physics

Prof. Nidal Esrhaidat Bs Physics.

Matteo Corbo (PhD student since Oct

2008)

Top into τ & impact in the Higgs sector

(H+ & H0) CDF Silicon Detector operation

Member

5

Korea members & research topics

Name Institute

Topic of research

Dr. Kihyeon Cho KISTI Bs Physics

Prof. Intae Yu SKKU B Physics

Prof. Soo-Bong Kim SNU Single Top & Top dilepton decays

Prof. Kyung Kwang Joo CNU Top Physics

Prof DongHee Kim KNU W’ search (single top)

Prof. Byungwon Ko KIAS Top, Bs physics Phenomenolgy

6

Also Collaborative contacts established with theoreticians in

France and Korea.

The contents of collaboration between France and Korea

1) We have exchanged visits:- Aurore Savoy-Navarro visited Korea on March (Aurore visited CDF

related institutes and gave seminars – SNU, SKKU, KNU & KIAS

on CDF and Silicon Detectors R&D)- M. Corbo, N. Ershaidat and A. Savoy-Navarro visited KNU, Daegu on

June 28 - June 30 to attend the France Korea Workshop- YoungJin Kim visited France on August for two weeks to work on Bs

physics (MC studies for the TT trigger)

2) We have performed analyses in close collaboration and work together on Bs Two Track Trigger (see next)

Video Conference

• FKPPL-CDF videoconference meeting using EVO – February 5, Daejeon, KISTI, Korea: half day conference

• Every Friday, we have EVO/SKYPE meeting between KISTI & IN2P3 at 9:00 am Paris Time, 5:00 PM Korea time

To report on progress in our analyses and exchange ideas with

the theorists

2nd joint Korea-France Collider Physics

Workshop organized by DongHee Kim

(KNU)

2nd joint Korea-France Collider Physics Workshop

1. First day, Monday June 28th, 2010 – Higgs, Top physics and SUSY

2. Second day, Tuesday June 29th, 2010 – B physics and detector R&D

3. Third day, Wednesday June 30st, 2010 – Discussions and Tour

Some photographs of the Workshop at KNU-WCU organized by DongHee Kim

Acquired & shared Top physics knowledge on:

• Single top (France) => W’ searches (France+Korea)

• Top into dilepton– Top pair production with hadronic tau plus electron and

impact on Higgs sector (France)– Dileptons (electrons and muons) (Korea)

• ttbar forward-backward asymmetry (Korea)

- Experiment

- Phenomenology - MT2 method

• MC generation and full simulations (France and Korea)

Single top

Observation of Single Top Quark Production and Measurement of |V(tb)| with CDF T. Aaltonen et al., The CDF Collaboration, Phys. Rev. D82, 112005 (2010). arXiv: 1004.1181.Abstract, PDF (5513KiB). 10063: Added: Friday, 2010 December 17 09:30:02 CST

Top pair production with tau lepton plus e or μMatteo Corbo

Analysis to be achieved for Summer Conferences, with preliminary result presentation at APS 2011, and PhD thesis in September.

Fr-Kr CDF Meeting(2/5/2010)

Chang-Seong Moon, Seoul National University

15

Preliminary DIL Cross SectionPreliminary DIL Cross Sectiontt

pb 0.46(lumi) 0.64(syst) 0.58(stat) 7.41 tt

pb 0.45(lumi) 0.38(syst) 0.66(stat) 7.42 tt

For pre-tag signal events

For b-tag signal events

C.S. Moon

Top Dilepton papers in 2010Measurement of the Top Pair Production Cross Section in the Dilepton Decay Channel in p anti-p Collisions at 1.96 TeV T. Aaltonen et al., The CDF Collaboration, Phys. Rev. D82, 052002 (2010). arXiv: 1002.2919.Abstract, PDF (333KiB). 9991: Added: Thursday, 2010 September 23 15:27:46 CDT

Measurement of W-Boson Polarization in Top-quark Decay in p anti-p Collisions at 1.96 TeV T. Aaltonen et al., The CDF Collaboration, Phys. Rev. Lett. 105, 042002 (2010). Fermilab-Pub-10-041-E. arXiv: 1003.0224.Abstract, PostScript (244KiB). 9995: Added: Monday, 2010 July 26 16:21:08 CDT

Search for Single Top Quark Production in p anti-p Collisions at 1.96 TeV in the Missing Transverse Energy Plus Jets Topology T. Aaltonen et al., The CDF Collaboration, Phys. Rev. D81, 072003 (2010). arXiv: 1001.4577.Abstract, PDF (1213KiB). 9933: Added: Thursday, 2010 April 22 11:06:33 CDT

MT2 distributions for b-tagged Dilepton events (Full Monte Carlo) with various top masses at CDF

(CDF note 9679)

17

Y.G. Kim

Korea Group

France Group

2010.06.28-29 Joint KR-FR Workshop@KNU 19

Forward-Backward Asymmetry

~2 away from the SM prediction.

Need to confirm with more analysesNeed to confirm with more analyses

NLO QCD:

015.005.0Afb

CDF (3.2 fb-1)

.)syst(024.0.)stat(065.0193.0Afb

In SM

DØ (1 fb-1) .)syst(01.0.)stat(08.012.0Afb

Hyunsoo Kim & Chang-Seong

Moon

New Paper in preparation (blessing) on the FB asymmetry in top paire production in the dilepton channel (2011)

20

Use of 6- dimension four quark operators with all the possible Dirac and color structures.

Considering s-, t- and u- channel exchanges of spin-0 & spin-1 particles whose color quantum number is either singlet, octet, triplet or sextet.

The results encode the necessary conditions for the underlying new physics in a compact and an effective way when those new particles are too heavy to be produced at the Tevatron.

FB asymmetry at Tevatron Model independent analysis

P. Ko & S.-h Nam. et.al, PLB 691, 238 (2010)

The region in (C1,C2) plane that is consistent with the Tevatron data at the one sigma level.

tt

B Physics common searches• Physics streamBs physics searches with data & the 2 track triggers new data stream.Since last year KISTI team head by Kihyeon Cho and YoungJin Kim joined the french team to collaborate on the 2 track trigger data searches

• Bs → J/ψ φ: CP violation related studies

– CP even and odd measurement: sin2βs and related measurements (France) (started by G.P. di Giovanni and A. Savoy-Navarro pursued with N. Ershaidat, N.

d’Ascenzo and V. Saveliev)– B → J/ψ K*0 competitive results with Babar/Belle (France) =>

– Bs → J/ψ Φ, using new PID (dE/dx andTOF) and TTT (Two Track Trigger) => sin2βs (France/Korea)

The goal is to achieve this analysis for Summer Conferences (see 2nd part)

04/21/23 21

Observation of B0(s) --> J/psi K*(892)0 and B0(s) --> J/psi K0(s) Decays T. Aaltonen et al., The CDF Collaboration, submitted to Phys. Rev. D February 10, 2011. Fermilab-Pub-11-030-E. arXiv: 1102.1961.Abstract, PDF (227KiB). 10363: Added: Thursday, 2011 February 10 10:33:48 CST

22

BB Mixing Using Right-handed model

Currently pursuing this phenomelogical study on Bs mixing

Right-handed currents cannot significantly & simultaneously contribute tp ΔMBd & ΔMBs

Soo-hyeon Nam

Scientific Production related to our collaborative research in 2010

Talks

- CDF in FKPPL

Aurore Savoy-Navarro and Kihyeon Cho,

2nd FKPPL workshop, SKKU, Seoul, Korea, Mar.15~16,2010

- France-Korea CDF Searches on Bs CPV

Kihyeon Cho, Korea CDF meeting, Jeonju, Korea, April 30

- France-Korea CDF searches on Bs CPV

N. Ershaidat and A. Savoy-Navarro, France Korea Workshop, KNU, June 2010

- B Standard Ntuples in CDF Experiment

YoungJin Kim, Korea CDF meeting Jeonju, Korea, October 8;

YoungJin Kim, Korea Physical Society Meeting, October 20~22;

YoungJin Kim, Korea Supercomputing Conference, December 6~7

Publications• Internal Notes in Preparation on the Bs-CPV searches and related issues• Presentations at the CDF weekly B meetings.• Forthcoming CDF Publications in 2011

Beyond CDF: launching a new proposal

WHY?

A number of facts have lately occurred:• Shutdown of the Tevatron Program in 2011• Impressive LHC running conditions and • Postponing from 2012 to 2013 the one year LHC shutdown • Aurore is moving to another Laboratory

Si TevatrOn Run III

No?

Finance issues

Politics

Manpower

Detector aging

Scientific motivations

Impact on the FNAL future

Over the last year, both CDF and D0 collaborations carried on a lot of work & discussions and meetings with the US authorities (DOE) to extend 3 more years the Tevatron Run: Run III

TEVATRON END

Tevatron is breaking records:• FY2011: 0.75fb-1 till 13/1/11• Peak Lum: 3.2-4.0x1032cm-2s-1

• Weekly Integrated Lum: 80 pb-1

Tevatron is running better than ever

02

06

08

07

10

09

Tevatron's holiday gift: two milestones in one week

The Accelerator Division achieved two new records for the holidays. During the week of Dec. 21, the Tevatron set a record for the number of store hours: 151.25. The complex produced physics data during nine stores for a total of 151 hours. The plot above shows how little time passed between each store. During that same week, the Antiproton Source produced a record number of antiprotons, equivalent to 4,033 milliamps.

Wednesday, Jan. 6, 2010

Tevatron's holiday gift: two milestones in one week

The Accelerator Division achieved two new records for the holidays. During the week of Dec. 21, the Tevatron set a record for the number of store hours: 151.25. The complex produced physics data during nine stores for a total of 151 hours. The plot above shows how little time passed between each store. During that same week, the Antiproton Source produced a record number of antiprotons, equivalent to 4,033 milliamps.

Wednesday, Jan. 6, 2010

January 15 2011:TEVATRON RUN WILL END IN 2011and depending level of budget cutseven before end of fiscal year 2011.

THE LHC IS DOING IMPRESSIVELY WELL !!!

LHC running in 2011-2012

• In 2011, Instantaneous Lum is expected to reach up to 2 x 1033 cm-2s-1 and a total Luminosity of 2 fb-1 delivered per experiment

• In 2012, Inst. Lum is expected to reach up to 5 x 1033 cm-2s-1 with a total Lum up to about 8-10 fb-1 delivered per experiment

• The one year-shutdown is postponed to 2013.

Impacts of Bs and Higgs sectors reach

Forthcoming Bs Physics results at LHCIn most B Physics channels, LHCb very soon wins:

1) Bs→μ+μ- (KNU)New CDF results presented at Winter conferences

Sensitive to SUSY Higgs (ex MA=600 tgβ~30)

Similarly in the study of CP-violation in the Bs sector (see next)

LHC: Low mass Higgs discovered in 2 years from now ?

updated CMS NOTE-2010/008

VERY TOUGH!!but if low mass Higgs,with hard work on analyses and on theaccelerator…we may get it!

LHC vs Tevatron: Higgs sector

3σ

5σ

5 fb-1 at 8 TeV => 3σ for 114 to > 500 GeV

Tevatron aims to 2.4σ exclusion in 100-185 GeV by end 2011…..BUT E.c.m. (& smart experiments) win!ATLAS & CMS estimated Higgs sensitivity if 8 TeV

Hard work pays!!

Aurore is moving to APC Laboratory

APC is hosted in Uni. Paris Diderot and is part of CNRS-IN2P3

Close relations with Korea:

• Only french U.with Licence degreein Korean Language and Culture

• The president of U. Diderot Paris: instrumental for restituting theKorean Royal Manuscripts

Korea will builda korean garden on Uni. roof

University Paris Diderot:

Close contactsKorea and APC: • P. Binetruy Lab director’s visits• Experiments and• G. Smoot Nobel Prize

G. Smoot (Berkeley U.) is:Prof. at U. Paris Diderot andDirector of IEU (institute forThe Early Universe) EWHA U.

Thus we are encouraged to pursue and further develop our collaborative efforts, in this new context

University Paris Diderot: Les Grands Moulins

APC Buildings in Paris XIII

Beyond CDF: launching a new proposal

We decided to change our collaboration goals => 2011 = transition yearWe thought essential to keep the positive momentum that we succeeded to buildover these last 2 years.This is why we didn’t want to stop this LIA action but instead to keep the fruitfulcollaboration framework and friendly links it created, in order to further expand itand build a new proposal

Due to a number of facts that lately occurred:• Shutdown of the Tevatron Program in 2011• Impressive LHC running conditions and • Postponing to 2013 the one year LHC shutdown • Aurore is moving to another Laboratory

• Achieving the Bs-CPV analysis by Summer Results with full statistics and where we add a new data stream from a powerful trigger: Two Tracks trigger (see next slide).

• Developing further the R&D on Si detectors: generic R&D for future experiments & applications to Medical imaging

(already existing collaborative work on generic Silicon R&D to be further developed)

• Investigating common Physics interests: experimentalists x theoreticians

Beyond CDF: launching a new proposal

HOW ?

Achieving the Bs-CPV Kr-Fr analysisThe unique features of the analysis we developed to study Bs-CPV in the process: Bs→J/Ψφ are:• Detailed and unique analysis of the Two Track Triggers (TTT) in CDF

(14 different TTT trigger paths) and of their evolution over the full run II period = 10 Years (trigger algorithm changes and luminosity increase)

• Dedicated and new TTT MC and full simulation studies (note here a collaborative effort established with Tsukuka U. on this respect).

• New ROOT Fitter to analyse data and extract the results

• Same analysis method applied to both data streams: dimuons and TTT and ready to combine them.

• Still competitive until Summer conferences

• Legacy: analysis method and powerfulness of triggers (especially Si tracking based triggers)

In the pipe: Internal Notes and towards June blessing of results & preparation of Publication over this summer.

Level-3 trigger

We carried on a unique study on the TTT In CDF; the aim was to well understand the content of theseselected data. One important result: the TTT does not include PID => one has to revisit the decayParameters as selected by TTT/Offline reconstruction

First time TTT is used for not purely hadronic signatures

Fitter:• Mass distribution (gaussian + exponential)• Full CP final states angular analysis• cτ error (sum of gamma functions)• Dilution (from sidebands and background subtracted data)• Tagging and tagging efficiency (ready to include it)

TTT Bs mass

TTT data

TTT MCYJ.Kim

(collaborative effort withTsukuba, H. Miyake)

Already long term collaboration with Pr. Hwanbae Park (KNU): last year visit ASN at KNU (March) and contributions to the France-Korea Workshop at KNU (June),also extended to other Korean Institutes*

*Korean Universities aroundKNU & ETRI

KEK & Tokyo U.Hamamatsu HPK

Beyond CDF a new proposal:

• Pursuing our weekly Bs-CPV Friday video meeting until completion of our analysis this summer.

• First action towards developing new proposal : Brainstorming MiniWorkshop at KIAS March 11: 2 to 7h30 pm• Regular (each 2 months) EVO meetings• Workshop by end of 2011 in Paris

GOAL: To have for FKPPL 2012, new proposal with hopefully already some results…!

WORK PLAN: