ORNL Physics Division

High-Energy Reactions Program

Overview
PHENIX, WA98

Relativistic Heavy-Ion Collisions

CERN WA98 Experiment
WA98 Collaboration -- ORNL Collaborators: T. C. Awes, F. Plasil, S. P. Sorensen, P. W. Stankus, G. R. Young
WA98

Scaling of Particle and Transverse Energy Production in Pb+Pb Collisions at 158 A-GeV
WA98 Collaboration
WA98

Directed Flow in 158 A-GeV ²⁰⁸Pb+²⁰⁸Pb Collisions
WA98 Collaboration
WA98, collective flow

Elliptic Emission of K± and p± in 158 A-GeV Pb+Pb Collisions
WA98 Collaboration
WA98, collective flow

Freeze-Out Parameters in Central 158 A-GeV ²⁰⁸Pb+²⁰⁸Pb Collisions
WA98 Collaboration
WA98, freeze-out

Interferometry Results from Pb Collisions at 158 GeV/Nucleon
WA98 Collaboration
WA98, HBT

Centrality Dependence of Neutral Pion Production in 158 A-GeV ²⁰⁸Pb+²⁰⁸Pb Collisions
WA98 Collaboration
WA98, thermalization

PHENIX Experiment at RHIC
PHENIX Collaboration - ORNL and UT Collaborators: W. Allen, G. T. Alley, T. C. Awes, F. Bellaiche, S. Belikov, M. Bobrek, J. Branning, C. L. Britton, W. Bryan, T. V. Cianciolo, L. G. Clonts, M. Cutshaw, S. Q. Daniels, Y. Efremenko, M. S. Emery, M. N. Ericson, S. Frank, T. F. Gee, J. Halliwell, S. Held, J. S. Hicks, D. R. Hurst, U. Jagadish, J. P. Jones, Y. Kamyshkov, R. Lind, S. Mioduszewski, T. A. Moore, C. Moscone, M. Musrock, J. Newby, F. E. Obenshain, F. Plasil, J. K. Pope, K. F. Read, D. Smith, M. Smith, S. P. Sorensen, P. W. Stankus, W. Tian, J. W. Walker, B. R. Whitus, A. L. Wintenberg, G. R. Young
PHENIX

The Pb-Glass Detector System in PHENIX
PHENIX Collaboration
PHENIX, EMCal, detectors

The PHENIX Muon Arms
PHENIX Collaboration
PHENIX, MuID

PHENIX Muon Identifier - Fabrication and Installation
PHENIX Collaboration
PHENIX, MuID

MuID Gas R&D Results Studies for PHENIX Muon Identifier
V. Cianciolo, Y. Efremenko, S. Held, Yu. Kamyshkov
PHENIX, muons, detectors

Reconstruction Software for the PHENIX Muon Identifier
V. Cianciolo, R. J. Newby, J. K. Pope, K. F. Read, S. P. Sorensen
PHENIX, muons

PHENIX Front-End Electronics - Overview
PHENIX Collaboration
PHENIX, FEE

Front End Electronics for the PHENIX Multiplicity-Vertex Detector
M. Bobrek, J. Branning, C. L. Britton, M. S. Emery, M. N. Ericson, S.-K. Hahn, R. Lind, T. A. Moore, B. Schlei, J. Simon-Gillo, J. Sullivan, H. Van Heck, G. R. Young
PHENIX, FEE, MVD

PHENIX Pad Chamber Front-End Electronics
J. Barette, W. Bryan, S. V. Greene, H.-A. Gustafsson, U. Jagadish, R. Lacey, T. Mark, I. Milov, L. Nikkinen, P. Nilsson, A. Oskarsson, L. Osterman, I. Otterlund, C. Pinkenburg, I. Ravinovich, A. Rose, D. Silvermyr, M. Sivertz, M. Smith, E. Stenlund, I. Tserruya, X. Wei, G. R. Young
PHENIX, FEE

PHENIX Ring-Imaging Cerenkov Front-End Electronics
K. Ebisu, S. Frank, H. Hamagaki, H. Hara, M. Hibino, J. P. Jones, J. Kikuchi, T. Matsumoto, C. Moscone, K. Oyama, T. Sakaguchi, Y. Tanaka, J. W. Walker, A. L. Wintenberg, G. R. Young
PHENIX, FEE, RICH

PHENIX Electromagnetic Calorimeter Front-End Electronics
W. Allen, T. C. Awes, S. Belikov, J. Branning, S. Daniels, M. N. Ericson, S. Frank, G. Jackson, J. P. Jones, M. Musrock, M. L. Simpson, M. Smith, P. W. Stankus, J. W. Walker, A. L. Wintenberg, G. R. Young
PHENIX, FEE, EMCal

PHENIX Muon Tracker Front-End Electronics
C. L. Britton, M. Cafferty, T. Carey, J. Halliwell, M. Musrock, S. Robinson, B. Wong-Swanson, G. R. Young
PHENIX, FEE, MuTR

The PHENIX Muon Identifier Front End Electronics
M. Bobrek, C. Britton, W. Bryan, V. Cianciolo, Yu. Efremenko, T. F. Gee, J. S. Hicks, Yu. Kamyshkov, G. Rao, R. Todd, B. R. Whitus, G. R. Young
PHENIX, FEE, MuID

Precision Measurements of Dimuons from p+p, p+d, p+A Collisions at 800 GeV/c
E866 Collaboration - ORNL Collaborators: T. C. Awes, P. W. Stankus, G. R. Young
E866, proton-nuclear collisions

Experiment E910 at the BNL AGS
V. Cianciolo, S. Mioduszewski, K. F. Read, S. P. Sorensen
E910, proton-nuclear collisions

A Neutrino Detector Facility at the Spallation Neutron Source at Oak Ridge National Laboratory
T. Awes, V. Cianciolo, Y. Efremenko, Yu. Kamyshkov, A. Mezzacappa, F. Plasil
fundamental interactions, neutrinos, SNS

Search for Neutrino Oscillations and Test of the Standard Model of Electro-Weak Interactions Using the Proposed ORLaND Neutrino Detector
T. Awes, V. Cianciolo, Y. Efremenko, Yu. Kamyshkov, A. Mezzacappa, F. Plasil
fundamental interactions, neutrinos, SNS

Supernovae, the Solar Neutrino Problem, and the Ultimate Fate of the Universe: Neutrino Oscillation and Cross Section Measurements at the Proposed ORLaND Neutrino Detector
A. Mezzacappa, T. Awes, V. Cianciolo, Y. Efremenko, F. Plasil
fundamental interactions, SNS, supernova, neutrinos

Abstracts of Papers Published or Submitted for Publication

Transverse Momentum Distributions of Neutral Pions from Nuclear Collisions at 200 A-GeV
WA80 Collaboration
WA80, transverse momentum distribution

Soft Photon Production in Central Collisions of 200 A-GeV S+Au
WA93 Collaboration
WA93, photons

Event by Event Measurement of < p_T> of Photons in S+Au Collisions at 200 A-GeV
WA93 Collaboration
WA93, photons, transverse momentum distribution

Multiplicity and Pseudorapidity Distributions of Photons in S+Au Reactions at 200 A-GeV
WA93 Collaboration
WA93, photons

Azimuthal Anisotropy in S+Au Reactions at 200 A-GeV
WA93 Collaboration
WA93, collective flow

Search for Disoriented Chiral Condensates in 158 A-GeV Pb+Pb Collisions
WA98 Collaboration
WA98, DCC

Centrality Dependence of Neutral Pion Production in 158 A-GeV Pb+Pb Collisions
WA98 Collaboration
WA98, thermalization

Measurement of the Light Antiquark Flavor Asymmetry in the Nucleon Sea
Fermilab E866/NuSea Collaboration
E866, proton-nuclear collisions, sea antiquark

d(bar)/u(bar) Asymmetry and the Origin of the Nucleon Sea
Fermilab E866/NuSea Collaboration
E866, proton-nuclear collisions, sea antiquark

A Monolithic, Constant-Fraction Discriminator Using R-C Distributed Delay Line Shaping
M. L. Simpson, G. R. Young, R. G. Jackson, M. Xu
PHENIX, FEE

Design and Performance of Beam Test Electronics for the PHENIX Multiplicity Vertex Detector
C. L. Britton, Jr., W. L. Bryan, M. S. Emery, M. N. Ericson, M. S. Musrock, M. L. Simpson, M. C. Smith, J. W. Walker, A. L. Wintenberg, G. R. Young, M. D. Allen, L. G. Clonts, R. L. Jones, E. J. Kennedy, R. S. Smith, J. Boissevain, B. V. Jacak, D. Jaffe, J. S. Kapustinsky, J. Simon-Gillo, J. P. Sullivan, H. Van Heck, N. Xu
PHENIX, FEE, MVD

A Multi-Channel ADC for Use in the PHENIX Detector
M. S. Emery, S. S. Frank, C. L. Britton, Jr., A. L. Wintenberg, M. L. Simpson, G. R. Young, L. G. Clonts, M. D. Allen
PHENIX, FEE, EMCal, RICH, MuTR, MVD

Development of Front End Controller/HEAP Manager for PHENIX
M. N. Ericson, M. D. Allen, M. S. Musrock, J. W. Walker, C. L. Britton, A. L. Wintenberg, G. R. Young
PHENIX, FEE

Integrated Constant-Fraction Discriminator Shaping Techniques for the PHENIX Lead Scintillator Calorimeters
R. G. Jackson, T. V. Blalock, M. L. Simpson, A. L. Wintenberg, G. R. Young
PHENIX, FEE, EMCal

An Integrated CMOS Time Interval Measurement System with Subnanosecond Resolution for the WA98 Calorimeter
M. L. Simpson, C. L. Britton, A. L. Wintenberg, G. R. Young
WA98, FEE

A Discriminator with a Current-Sum Multiplicity Output for the PHENIX Multiplicity Vertex Detector
R. S. Smith, E. J. Kennedy, R. G. Jackson, C. L. Britton, W. L. Bryan, U. Jagadish, G. R. Young, B. V. Jacak, J. Kapustinsky, A. Oskarsson
PHENIX, FEE, MVD

A CMOS Variable Gain Amplifier for PHENIX Electromagnetic Calorimeter and RICH Energy Measurements
A. L. Wintenberg, M. L. Simpson, G. R. Young, R. L. Palmer, C. G. Moscone, R. G. Jackson
PHENIX, FEE, EMCal, RICH

TGLD: A 16-Channel Charge Readout Chip for the PHENIX Pad Chamber Detector Subsystem at RHIC
W. L. Bryan, U. Jagadish, C. L. Britton, S. S. Frank, M. N. Ericson, M. L. Simpson, G. R. Young, L. G. Clonts, R. S. Smith, A. Oskarsson, T. Mark, E. Obrien, V. Greene
PHENIX, FEE, pad chamber

Front-End Module Readout and Control Electronics for the PHENIX Multiplicity Detector
M. N. Ericson, C. L. Britton, M. S. Emery, M. S. Musrock, D. E. Smith, G. R. Young, J. Boissevain, J. S. Kapustinsky, J. Simon-Gillo, J. P. Sullivan, H. Van Hecke, S. F. Hahn, M. D. Allen, R. E. Lind
PHENIX, FEE, MVD

A CMOS Integrating Amplifier for the PHENIX Ring Imaging Cherenkov Detector
A. L. Wintenberg, C. G. Moscone, J. P. Jones, G. R. Young
PHENIX, FEE, RICH