Overview of PHENIX upgrades Axel Drees Stony Brook

Overview of PHENIX upgrades Axel Drees, Stony Brook University BNL review of RHIC detector upgrades, March 14 th 2006 Goals of PHENIX upgrades program PHENIX upgrades at a glance detector systems and status physics reach of combined system new detector systems not covered today The FVTX and NCC proposals Submitted BNL to seek construction funds starting FY 08 PHENIX internal review in December 2005

Physics Beyond the Reach of PHENIX Provide key measurements so far inaccessible at RHIC in three broad areas: High T QCD (AA, p. A, and pp): Electromagnetic radiation (e+e- pair continuum) Heavy flavor (c- and b-production) Jet tomography (high p. T PID, jet-jet and g-jet) Quarkonium (J/ , ’ , c and (1 s), (2 s), (3 s)) requires highest AA luminosity Spin structure of the nucleon: Gluon spin structure DG/G (heavy flavor and g-jet correlations) Quark spin structure Dq/q (W-production) Low x phenomena gluon saturation in nuclei (particle production at forward rapidity) All measurements base on existing capabilities enhance by detector upgrades Axel Drees

PHENIX Detector Upgrades at a Glance Central arms: Electron and Photon measurements Electromagnetic calorimeter Precision momentum determination Dalitz/conversion rejection (HBD) Precision vertex tracking (VTX) Hadron identification PID (k, p, p) to 10 Ge. V (Aerogel/TOF) Muon arms: Muon Identification Momentum determination High rate trigger (m trigger) Precision vertex tracking (FVTX) Electron and photon measurements Muon arm acceptance (NCC) Very forward (MPC) Axel Drees

PHENIX Detector Upgrades at a Glance Central arms: MPC south Electron and Photon measurements Electromagnetic calorimeter Precision momentum determination Dalitz/conversion rejection (HBD) Precision vertex tracking (VTX) Preparing for HBD installation Hadron identification in April/May 2006 PID (k, p, p) to 10 Ge. V (Aerogel/TOF) TOF west MRPC construction Installation 2006 Areogel completed 2005 Muon arms: Muon Identification Momentum determination High rate trigger (m trigger) Precision vertex tracking (FVTX) Electron and photon measurements Muon arm acceptance (NCC) Very forward (MPC) Axel Drees

PHENIX Upgrades in Central Region m trigger Hadron blind detector (HBD) W measurements in pp ~$2 M funded through NSF Reject Dalitz/Conversion electrons in electron pair measurement Under construction funded through BNL, NSF, SBU, WI R 3……. . . R 2………. . R 1 Vertex Tracking (barrel and forward endcaps) HBD NCC VTX Nose Cone Calorimeter p 0 and photon measurements Proposed to DOE (~$4 M), reviewed today Precision measurements of charm and bottom production Barrel (VTX) funded through RIKEN ($3 M) and DOE ($4. 6 M), now in FY 07 presidents budget Forward endcaps proposed to DOE (~$4. 5 M), reviewed today Axel Drees

PHENIX Upgrades Physics Capabilities X upgrade critical for success O upgrade significantly enhancements program PHENIX upgrades designed for optimum physics output with RHIC II luminosity Axel Drees

2 p Future PHENIX Acceptance for Hard Probes NCC MPC EMCAL f coverage EMCAL HBD 0 VTX & FVTX -3 -2 -1 0 1 2 3 ra (i) p 0 and direct g with combination of all electromagnetic calorim (ii) heavy flavor with precision vertex tracking with silicon detect combine (i)&(ii) for jet tomography with g-jet (iii) low mass dilepton measurments with HBD + PHENIX central Axel Drees

Integrated Design for PHENIX Vertex Spectrometer FVTX NCC Axel Drees

Two Proposals Submitted to BNL for FY 08 Construction Proposal readiness review by PHENIX DC/EC in December 2005 All recommendations addressed and incorporated to proposals Axel Drees

PHENIX Upgrades Schedule 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 Aerogel TOF-W HBD VTX-barrel VTX-endcap NCC Mu. Trigger DAQ R&D Phase Construction Phase Ready for Data Axel Drees

Backup Slides Axel Drees

Upgrade Subsystem Detector type Physics program Collaborating Institutions 12/2005 Hadron Blind Detector GEM-based Cerenkov Low mass dielectrons BNL, Columbia U, U Mass, RBRC, Stony Brook U, U Tokyo, WIS Muon Trigger Res Plate Chambers Quark spin structure W-polarization ACU, Columbia U, ISU, Kyoto U, Peking U, RBRC, UCR, U Colorado, UIUC Silicon Vertex Barrel Silicon pixel + strips g+jet, heavy quark spec. jet tomography BNL, Ecole Polytech. , FSU, ISU, KEK, Kyoto U, LANL, Niigata U, ORNL, RIKEN, Rikkyo U, Stony Brook U, UNM Forward Silicon Vertex Silicon mini-strips g+jet, heavy quark spec. jet tomography, CGC BNL, Charles U, Columbia U, Czech Tech U, Inst Phys Czech Acad Sci, ISU, LANL, NMSU, UNM Nose Cone Calorimeter Tungsten-silicon calorimeter g+jet, Wpolarization heavy quark spectroscopy, jet tomography BNL, Charles Univ, Columbia U, Czech Tech U, EWU-Korea, Inst Phys Czech Acad Sci, ISU, JINR-Dubna, Korea U, Moscow State, RIKEN, Stony Brook U, Tsukuba U, UCR, UIUC, Yonsei U Data Acquisition Electronics, computing High luminosity, high rate BNL, Columbia U, ISU Axel Drees

Ongoing HBD and Muon Trigger Upgrade Projects signal electron Cherenkov blobs e- R 2 partner positron + needed for rejection e q R 3 pair opening angle ~1 m R 1 HBD full scale prototype Installation of full scale prototype next month Final detector under construction Funded through BNL, NSF, SBU, WI Weizmann Inst. , Stony Brook Univ. , BNL, Columbia Univ. , Florida Inst. Tech. , CNS-Tokyo, Univ. Mass, RIKEN BNL Res. Center (RBRC) Muon trigger upgrade Funded through NSF ($1. 9 M) Installation in 2008 Univ. Illinois-UC, UC-Riverside, Iowa State Univ. , Abilene Christian Univ. , Univ. Colorado, Peking Univ. , Columbia Univ. , Kyoto Univ, RBRC, Georgia State Univ. Axel Drees

PHENIX Vertex Tracker Barrel (VTX) Joint RIKEN/DOE project VTX barrel |h|<1. 2 Pixel Detectors (50 mm x 425 mm) at R ~ 2. 5 & 5 cm Strip Detectors (80 mm x 3 cm) at R ~ 10 & 14 cm 72 collaborators from 14 institutions BNL, Florida State Univ. , Iowa State Univ. , KEK, Kyoto Univ. , LANL, Niigata Univ. , ORNL, RIKEN BNL Reas. Center, Stony Brook Univ. , Univ. New Mexico, Ecole Poly Tech, Saclay RIKEN contribution ($3 M) Hybrid pixel detectors (developed at CERN for ALICE) under construction Prototype pixel ladder pilot DOE contribution ($4. 6 M) Strip detectors, sensors developed at BNL with FNAL’s SVX 4 readout chip funding proposed in FY 07 presidents budget Readiness review in 2 months Axel Drees