Los Alamos RHIC Program David M. Lee

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Los Alamos RHIC ProgramDavid M. Lee

• Heavy Ion and Medium Energy
• 7 February 2005

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PHENIX

South Muon Arm - 2001
North Muon Arm - 2002
MVD 2002
FCAL 2002
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PHENIX The Muon Spectrometers
South Muon Arm
North Muon Arm
South Muon Arm prior to run 3 in retracted
position. Visible is station 1 in the front of
the magnet and the MuID panels to the left.
North Muon Arm prior to run 3 during the
installation process. The scaffolding used to
install the electronics is visible.
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PHENIXThe Muon Cathode Strip Detectors
Largest CSC chambers in operation, 3.3m x 3.3m.
2 gaps using honeycomb technology
Largest etched foil CSC in operation. 3 gaps for
total radiation length 8.8 x 10-4
Station 3
Station 2
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PHENIXMVD half cylinder before run 3
Complete MVD prior to installation for run 3.
Visible are the strip detectors and kapton cables
(red), the cooling plenum (white), and the power
and control boards (green). The pad detectors
are mounted in the end plates.
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Los Alamos Heavy Ion and Medium Energy
ProgramCurrent Personnel

• Muon Spectrometers
• Barnes, Brooks, Kunde, Lee, Leitch, Liu,
  McGaughey, Constantin(PD), Norman(PD),
• Puwar(PD), Sondheim,
• MVD
• Kunde, Norman, van Hecke, Boissevain
• Magnet Design and Simulation
• Sondheim
• Silicon Upgrade
• Kunde, Lee, McGaughey, van Hecke, Sondheim,
  Boissevain

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Phenix Muon and MVD ProgramMajor Institutions
Muon Los Alamos National Laboratory Oak Ridge
National Laboratory PHENIX France Riken,
Kyoto Korean Universities University of Colorado,
UNM, NMSU MVD Los Alamos National
Laboratory Yonsei University
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Los Alamos Heavy Ion Program PHENIX activities
Detector Council Members van Hecke(MVD),
Brooks(past muon), Leitch(past muon),
McGaughey(past muon) Subsystem managers Lee(muon
mechanical) Executive Committee Leitch
(past) Institutional Board Barnes Physics
working groups all, Brooks(heavy convenor) Paper
writing Brooks, Constantin, Kunde, Leitch, Liu,
McGaughey, Norman, Puwar Internal paper review
Lee, van Hecke Period coordinator Leitch
(run03,04,05) PHENIX Online Documentation van
Hecke Upgrades proposal Kunde, Lee, Leitch,
McGaughey, van Hecke Integration Engineering
Sondheim(muon), Boissevain(MVD)
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Los Alamos Heavy Ion Program PHENIX activities
Organized Annual Muon Workshop in Santa Fe in
June, 3 days with invited theory talks 2003 50
attendees 2004 65 attendees 2005 50
attendees Organized VTX workshop on
triggering Panic organizing Committees Organized
Muon Workshop in BNL February 2005 Convenor of
RHIC II white paper subcommittee Leitch Author
of pA section of PHENIX decadal plan
Leitch Host for students, postdocs, staff for
physics analysis Minjung Kweon Imran
Younis Woojin Park Nicki Brunner Xiaorong
Wang Hiroki Sato Hugo Pereria Vasili
D Raphael Granier de Cassagnac Sean Kelly
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Los Alamos Heavy Ion Program Future Research
Goals, FY05 and beyond

• Examine the suppression/enhancement of J/y
  production in Au-Au collisions from PHENIX Run-4
  data relative to scaled yields from p-p and d-Au.
  Study the rapidity and pT dependence to
  determine whether or not a quark gluon plasma is
  formed.
• Extract open charm production in Au-Au collisions
  via single muon, dimuon, and possibly
  electron-muon channels to help disentangle J/y
  suppression due to the QGP and small x physics
  from nuclear medium effects.
• Study gluon shadowing, parton energy loss and the
  Cronin effect in d-A and p-p collisions.
• Measure p, K and heavy flavor production at
  forward rapidity via their decays to muons.
• Determine the reaction plane in Au-Au and CuCu
  collisions at forward rapidities using the
  endcaps of the MVD.
• Perform RD for a silicon vertex detector
  upgrade. Begin design and construction of the
  detector mechanical structure and a silicon
  Endcap detector.
• Calculate theoretical open charm production cross
  sections using the color-octet and color- singlet
  models.

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Silicon Tracker Upgrade
80 cm
16 cm
Current Design Concept
Physics extension of the present Muon Arms by
clearly identifying the heavy quarks Enhance the
single muon effort by identifying decay hadrons
on event by event basis
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Silicon Tracker Upgrade Responsibilities

• Mechanical Structure Coordination Barrel and
  Endcap
• Integrated approach extremely important
• LANL has experience, E789, L3, SSC/GEM, MVD
• Past relationship with experienced engineering
  team
• PHX chip coordination Endcap
• Collaboration with FNAL (Ray Yarema) to modify
  existing FPIX2 chip
• VTX Engineering Integration

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Los Alamos Heavy Ion Program Resource Analysis
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Los Alamos Heavy Ion Program Budget Analysis
Program FY04 FY05 FY06 FY07 KB01 3.0 FTE
900k 870K 800k 760k-840k KB02 8.0
FTE 2375k 2375k 1928k 1832k-2024k
presidents budget FY06 presidents budget 5
FY05 FY06
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Los Alamos Heavy Ion Program Agenda
Overview - Dave Lee,                     10
minRHIC Physics Overview - Mike Leitch,    15
minSingle muons - Ming Liu,                 15
minJ/Psi - Melynda Brooks -                 15
minJet Studies - Paul Constantin,           15
minReaction Plane - Ben Norman,             15
minSilicon Upgrade - Hubert van Hecke       15
min