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RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 1 ALICE at LBNL Peter Jacobs RNC accomplishments in heavy ion physics Jet quenching at RHIC and LHC.

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Presentation on theme: "RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 1 ALICE at LBNL Peter Jacobs RNC accomplishments in heavy ion physics Jet quenching at RHIC and LHC."— Presentation transcript:

1 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 1 ALICE at LBNL Peter Jacobs RNC accomplishments in heavy ion physics Jet quenching at RHIC and LHC RNC in ALICE: Physics, EMCal project, PDSF Workforce projections

2 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 2 RNC accomplishments in heavy ion physics Development of the Time Projection Chamber for heavy ion physics: EOS → STAR Development and leadership of STAR at RHIC Discovery of collective flow at the Bevalac, CERN SPS, and RHIC Co-discovery and detailed elucidation of jet quenching at RHIC Development of a new generation of ultra-high precision vertex detectors

3 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 3 RNC accomplishments cont’d STAR publications with SPIRES TOPCITE 250+: Elliptic flow at RHIC K.H. Ackermann et al. (STAR), Phys. Rev. Lett. 86:402 (2001). Jet quenching@130 GeV C. Adler et al. (STAR), Phys. Rev. Lett. 89:202301 (2002). Back-to-back hadron suppression C. Adler et al. (STAR), Phys. Rev. Lett. 90:082302 (2003). Jet quenching @ 200 GeV J. Adams et al. (STAR), Phys. Rev. Lett. 91:172302 (2003). d+Au: J. Adams et al. (STAR), Phys. Rev. Lett. 91:072304 (2003). STAR White Paper J. Adams et al. (STAR), Nucl.Phys. A757:102 (2005). All six papers have primary authors from the RNC RNC is among the world’s leading heavy ion research groups

4 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 4 Jet quenching at RHIC Jet fragments (color-charged) Photons (color-neutral) STAR, Phys Rev Lett 91, 072304 p T assoc > 2 GeV cos(  ) p T assoc > 0.15 GeV STAR, Phys Rev Lett 95, 152301

5 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 5 Jet quenching: the deeper we dig, the more we find… p T trigger >8 GeV/c Yield per trigger STAR, PRL 97, 162301 (2006) Jet quenching will be as central to the LHC heavy ion program…

6 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 6 Jet quenching in ALICE Casalderrey-Solana and Wang arXiv:0705.11352 Consider jet quenching similar to DIS  jet energy variation probes QGP at varying length scales…

7 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 7 EMCal kinematic reach Ratio of purple/red 175 GeV jets in ALICE acceptance Jet quenching Dashed line = no jet quenching ALICE+EMCal enables world-class jet quenching measurements

8 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 8 LBNL Personnel on ALICE RNC Senior Staff Scientists P. Jacobs H.-G. Ritter T. J. M. Symons RNC Staff Scientists: S. Klein G. Odyniec M. van Leeuwen (term) RNC Postdocs: J. Putschke LBNL Engineering Division (EMCal Project Funds): J. Rasson D. Peterson

9 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 9 Physics Activities 2008 2008Project SupportSimulations and AnalysisTotal FTEDetailsFTEDetails Jacobs0.5Trigger, Project management, module installation, p+p and Pb+Pb runs 0.5Jet reconstruction, p+p analysis1 Klein0.1data taking0.1p+p analysis0.2 Odyniec0.5Calibrations, module installation, data taking 0.5Heavy quark jet simulations, p+p analysis 1 Putschke/ new postdoc 0.4Trigger simulations, algorithms, hardware 0.6Jet reconstruction algorithms (ALICE/STAR), p+p analysis 1 Ritter0.2Management, data taking0.2 Symons0.1Management0.1 Van Leeuwen/ new postdoc 0.4Calibrations, module installation, data taking 0.6Software infrastructure, direct photon studies, jet reco, p+p analysis 1 Total per category 2.22.34.5 In addition: 0.5-1.0 FTE for PDSF

10 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 10 Physics Activities 2010 2010Project SupportSimulations and AnalysisTotal FTEDetailsFTEDetails Jacobs0.4Trigger, Project management, commissioning, data taking 0.6Jet reconstruction, data analysis 1 Klein0.1data taking0.1UPC analysis0.2 Odyniec0.4Calibrations, commissioning, data taking 0.6data analysis: heavy quark jets, correlations 1 Putschke/ new postdoc 0.4Trigger algorithms and hardware, commissioning, data taking 0.6data analysis: jets, heavy flavor production 1 Ritter0.2Management, data taking0.2 Symons0.1Management0.1 Van Leeuwen/ new postdoc 0.4Calibrations, commissioning, data taking 0.6Software infrastructure, data analysis: direct photons and pi0, jet reco, correlations 1 Total per category 22.54.5 In addition: 0.5-1.0 FTE for PDSF

11 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 11 RNC: P. Jacobs (Deputy Contract Project Manager) S. Klein G. Odyniec J. Putschke H. Ritter J. Symons M. van Leeuwen LBNL Engineering: J. Rason (Deputy Contract Project Manager) D. Peterson EMCal Project Participation LBNL responsibilities: Project management Mechanical engineering oversight Trigger Software and computing (PDSF) Physics leadership

12 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 12 PDSF PDSF at NERSC: cost effective platform for large scale NP/HEP experimental computing plays essential role in STAR RNC contributes 1.5 FTE PDSF in ALICE: PDSF Requirements for ALICE2007200820092010 CPU added per year [MSi2K]0.10.50.60.9 Cumulative CPU [MSi2K]0.10.61.22.1 Disk added per year [PB]0.00.10.20.3 Cumulative Disk [PB]0.00.10.30.6 Annual HPSS volume [PB]0.10.30.4 Costs and implementation: see Ron Soltz’s talk NSD contributes 0.5-1.0 FTE for ALICE

13 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 13 Impact of ALICE participation on STAR LBNLFY 2008 Ph.D.RHIC ResearchRHIC UpgradesALICE Research Total Effort (FTEs)21.48.507.905.00 40%37%23% Group Ph.Ds20.0 ALICE-USA Ph.Ds:7.0 LBNLFY 2010 Ph.D.RHIC ResearchRHIC UpgradesALICE Research Total Effort (FTEs)21.43.1013.35.00 15%62%23% Group Ph.Ds20.0 ALICE-USA Ph.Ds:7.0

14 RNC/LBNL ALICE-US Review Germantown, May 23-24 2007 14 Summary of RNC at STAR and ALICE ALICE: EMCal project provides unique opportunity for highly visible, high impact new program that is fully consistent with RNC physics accomplishments and interests  targeted, limited effort focused on EMCal and its related physics STAR: RNC participation will evolve in next ~3 years: Expanded effort on STAR tracking upgrades Correspondingly reduced STAR analysis effort Current high p T group will migrate to ALICE by 2008  STAR jet physics and hard process analyses will be carried out by the existing “Soft Physics” group

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