RHIC Spin Group at BNL

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RHIC Spin Group at BNL
FY2006 FY2007
STAR Physics Les Bland Akio Ogawa (SBU Zagreb students) Andrew Gordon Hiromi Okada
STAR Physics FPD jet-like AN s(g) FMS ALL(g) AN(g) gAu(x)
PHENIX Physics Gerry Bunce Sasha Bazilevsky Gerry Bunce Sasha Bazilevsky
PHENIX Physics ALL(p0) ALL(g)
Polarimetry Sandro Bravar Ron Gill (0.5) Sasha Bazlevsky Boris Morozov
Polarimetry Gas-jet target carbon polarimeters Gas-jet target carbon polarimeters
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Personel RHIC Spin Group

• Gerry BunceGroup Leader, RHIC Spin Group Deputy
  Group Leader, RBRC Experiment Group Spokesman,
  RHIC Spin Collaboration Chair, Research Plan for
  Spin Physics at RHIC (2005) polarimetry PHENIX.
• Les BlandDeputy Group Leader, leads STAR spin in
  RHIC Spin Group PI for Forward Pion Detector,
  FPD (2006), Forward Meson Spectrometer (2007)
  co-chair, STAR Spin Physics Group 1999-2004
  developed case for Endcap Calorimeter at IU.
• Akio OgawaSTAR, co-chair STAR Spin Physics Group
  2004-06 FPD, FPD, FMS organizer of RSC
  2003-2005 Belle polarized quark fragmentation
  analysis (RBRC collaboration).
• Sasha BazilevskyPHENIX, calorimeter calibration,
  software, analysis leads A_LL analysis group
  sigma(pi0), E_T analysis organizer of RSC
  2005-present, PHENIX Spin Working Group
  coordinator leading Polarimetry analysis group.
• Boris Morozov---Polarimetrydeveloping detector
  improvements, Tandem study Star FMS support
  Phenix Muon Cherenkov study.
• Ron GillPolarimetry Physics Safety Officer.
• Andrew Gordon---Begins on Star FMS July 2007.
• Hiromi Okada---STAR FMS developed polarized jet
  polarimeter (thesis).

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Planned RHIC Spin Group

• Group Leader G. Bunce
• Deputy Group Leader L. Bland
• Secretary M. Echmalian (0.5 FTE)
• STAR L. Bland (Leader), A. Ogawa (Assoc. Phys.),
  A. Gordon (Assist. Phys.), H. Okada (Post Doc)
  Post Doc (2008)
• PHENIX G. Bunce (Leader), A. Bazilevsky (Assoc.
  Phys.)
• Jr. Staff (2008)
• Polarimetry A. Bazilevsky (Leader), B. Morozov
  (Phys.), R. Gill (Phys., 0.5 FTE), G. Bunce
  Post Doc (2008)
• Scientific FTEs 7.5
• Support FTEs 0.5

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RHIC Spin Kyoto Spin2006 2006/7 Pubs

• STAR
• Forward pi0 A_N(x,pT) (2006 data) PRL pp, d-Au
• Jet A_LL (2005 data) PRL (20034 data)
• 2007 Forward Meson Spectrometer
• PHENIX
• pi0 A_LL (2006 200 GeV, 62 GeV) PRD (2004 data)
• direct photon cross section PRL (2003 data) 2005
  data
• POLARIMETRY
• jet A_N 100 GeV PLB 24 GeV (2004 data)
• neutron A_N 200 GeV PLB

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Plans for 2007-2010

• STAR
• 2007build and test FMS
• 2008---measure gluon density in gold nucleus in
  dAu collisions measure transverse spin
  asymmetries for pi0-pi0 correlations
• 2009---complete A_LL measurements for prompt
  photon, photon-jet, photon-hadron correlations
  root(s)200 GeV transverse spin asymmetries at
  root(s)500 GeV
• 2010---A_LL measurements for prompt photon,
  root(s)500 GeV
• Possible transverse spin Drell-Yan Expt.

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Plans for 2007-2010

• PHENIX
• 2007analysis of A_LL for pi0, charged pi
  construction of muon trigger chambers and vertex
  detector
• 2008---A_LL (pi, photon) continue construction
  of muon trigger chambers, vertex detector
• 2009---install muon trigger chambers, 2 layers of
  vertex detector complete A_LL measurements at
  root(s)200 GeV begin A_L measurements of W at
  root(s)500 GeV
• 2010---install complete vertex detector, continue
  A_L for W and A_LL (pi, photon) at root(s)500
  GeV
• Possible transverse spin Drell-Yan expt.

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Plans for 2007-2010

• Polarimetry
• 2007---formed new polarimetry team (after
  departure of Bravar to U. Geneva) collaboration
  with CAD in place.
• 2007completed 2005 jet and carbon polarimetry
  analysis (DP/P6 each beam, DP2/P29.4)
  complete polarization analysis for 2006, 200 GeV
  and 62 GeV study detectors with lt1 MeV carbon
  beam in Tandom (July 2007)
• 2008-2010---continue leading RHIC polarimetry
  analysis possible development of new detectors
  and electronics (radiation hardness, dead layer
  correction in carbon tgt. polarimeters, pile-up
  concerns for higher intensities) possible
  development of unpolarized jet polarimeter
• Discussion importance of maintaining strong
  collaboration with experiments use of
  detailees for data monitoring and data analysis
  each year (2005 I. NakagawaRIKEN O. EyserUC
  Riverside
• 2006 I. Nakagawa A. HoffmanMIT C.
  Camacho and H. LiuLos Alamos A. Dion and K.
  BoyleStony Brook)