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 transcript:

RNC/LBNL ALICE-US Review Germantown, May 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

RNC/LBNL ALICE-US Review Germantown, May 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

RNC/LBNL ALICE-US Review Germantown, May 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 GeV C. Adler et al. (STAR), Phys. Rev. Lett. 89: (2002). Back-to-back hadron suppression C. Adler et al. (STAR), Phys. Rev. Lett. 90: (2003). Jet 200 GeV J. Adams et al. (STAR), Phys. Rev. Lett. 91: (2003). d+Au: J. Adams et al. (STAR), Phys. Rev. Lett. 91: (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

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

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

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

RNC/LBNL ALICE-US Review Germantown, May 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

RNC/LBNL ALICE-US Review Germantown, May 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

RNC/LBNL ALICE-US Review Germantown, May Physics Activities Project 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 In addition: FTE for PDSF

RNC/LBNL ALICE-US Review Germantown, May Physics Activities Project 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 In addition: FTE for PDSF

RNC/LBNL ALICE-US Review Germantown, May 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

RNC/LBNL ALICE-US Review Germantown, May 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 ALICE CPU added per year [MSi2K] Cumulative CPU [MSi2K] Disk added per year [PB] Cumulative Disk [PB] Annual HPSS volume [PB] Costs and implementation: see Ron Soltz’s talk NSD contributes FTE for ALICE

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

RNC/LBNL ALICE-US Review Germantown, May 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