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NSR database version of May 10, 2024.

Search: Author = T.A.Armstrong

Found 21 matches.

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2004AR21      Phys.Rev. C 70, 024902 (2004)

T.A.Armstrong, and the E864 Collaboration

Production of 3ΛH and 4ΛH in central 11.5 GeV/c Au + Pt heavy ion collisions

NUCLEAR REACTIONS Pt(197Au, X), E at 11.5 GeV/c/nucleon; measured light hypernucleus production σ; deduced strange cluster coalescence features.

doi: 10.1103/PhysRevC.70.024902
Citations: PlumX Metrics


2002AR02      Phys.Rev. C65, 014906 (2002)

T.A.Armstrong, and the E864 Collaboration

Production of Particle Unstable Light Nuclei in 11.5A GeV/c Au + Pt Heavy-Ion Collisions

NUCLEAR REACTIONS 197Pt(197Au, X), E at 11.5 GeV/c/nucleon; measured unstable Z=1-3 fragments yields, multiplicities. Comparison with thermal model predictions.

doi: 10.1103/PhysRevC.65.014906
Citations: PlumX Metrics


2001AR08      Phys.Rev. C63, 054903 (2001)

T.A.Armstrong, and the E864 Collaboration

Search for Strange Quark Matter Produced in Relativistic Heavy Ion Collisions

NUCLEAR REACTIONS Pt, Pb(197Au, X), E at 11.5 GeV/c/nucleon; measured neutral and charged strangelet production upper limits. Comparisons with model predictions.

doi: 10.1103/PhysRevC.63.054903
Citations: PlumX Metrics


2000AR06      Phys.Rev. C61, 064908 (2000)

T.A.Armstrong, and the E864 Collaboration

Measurements of Light Nuclei Production in 11.5A GeV/c Au + Pb Heavy-Ion Collisions

NUCLEAR REACTIONS 197Pt, 208Pb(197Au, X), E at 11.5 GeV/c/nucleon; measured A=1-7 fragments yields, rapidity and transverse momentum distributions, inverse slope parameters; deduced source features.

doi: 10.1103/PhysRevC.61.064908
Citations: PlumX Metrics


2000AR15      Phys.Rev.Lett. 85, 2685 (2000)

T.A.Armstrong, and the E864 Collaboration

Antideuteron Yield at the AGS and Coalescence Implications

NUCLEAR REACTIONS Pt(197Au, X), E at 11.5 GeV/c/nucleon; measured antiproton, antideuteron production σ vs transverse momentum; deduced coalescence parameter.

doi: 10.1103/PhysRevLett.85.2685
Citations: PlumX Metrics


1999AR09      Phys.Rev. C59, R1829 (1999)

T.A.Armstrong, and the E864 Collaboration

Search for Neutral Strange Quark Matter in High Energy Heavy Ion Collisions

NUCLEAR REACTIONS Pb(197Au, X), E at 11.6 GeV/c/nucleon; measured neutral strangelet production σ upper limit.

doi: 10.1103/PhysRevC.59.R1829
Citations: PlumX Metrics


1999AR10      Phys.Rev. C59, 2699 (1999)

T.A.Armstrong, and the E864 Collaboration

Antiproton Production and Antideuteron Production Limits in Relativistic Heavy Ion Collisions

NUCLEAR REACTIONS Pb(197Au, p-barX), (197Au, d-barX), E at 11.5 GeV/c/nucleon; measured antiproton invariant multiplicities, antideuteron production upper limit; deduced antihyperon/antiproton ratio.

doi: 10.1103/PhysRevC.59.2699
Citations: PlumX Metrics


1999AR24      Phys.Rev. C60, 064903 (1999)

T.A.Armstrong, and the E864 Collaboration

Measurements of Neutrons in 11.5A GeV/c Au + Pb Heavy-Ion Collisions

NUCLEAR REACTIONS Pb(197Au, X), E at 11.5 GeV/c/nucleon; measured neutron invariant multiplicity; deduced neutron-to-proton ratio at freeze-out.

doi: 10.1103/PhysRevC.60.064903
Citations: PlumX Metrics


1999AR26      Phys.Rev.Lett. 83, 5431 (1999)

T.A.Armstrong, and the E864 Collaboration

Mass Dependence of Light-Nucleus Production in Ultrarelativistic Heavy-Ion Collisions

NUCLEAR REACTIONS Pb, Pt(197Au, X), E at 11.5 GeV/c/nucleon; measured light nuclei invariant yields; deduced mass dependence, possible spin and binding energy dependences.

doi: 10.1103/PhysRevLett.83.5431
Citations: PlumX Metrics


1997AR21      Phys.Rev.Lett. 79, 3351 (1997)

T.A.Armstrong, and the E864 Collaboration

Antiproton Production in 11.5A GeV/c Au + Pb Nucleus-Nucleus Collisions

NUCLEAR REACTIONS Pb(197Au, X), E at 11.5 GeV/c/nucleon; measured antiproton invariant multiplicities vs transverse momentum, rapidity; deduced antihyperon production role. Other data considered.

doi: 10.1103/PhysRevLett.79.3351
Citations: PlumX Metrics


1997AR23      Phys.Rev.Lett. 79, 3612 (1997)

T.A.Armstrong, and the E864 Collaboration

Search for Charged Strange Quark Matter Produced in 11.5A GeV/c Au + Pb Collisions

NUCLEAR REACTIONS Pb(197Au, X), E at 11.5 GeV/c/nucleon; measured strangelet production σ upper limit.

doi: 10.1103/PhysRevLett.79.3612
Citations: PlumX Metrics


1997AR25      Nucl.Phys. A625, 494 (1997)

T.A.Armstrong, and the E864 Collaboration

Search for Exotic Strange Quark Matter in High Energy Nuclear Reactions

NUCLEAR REACTIONS Pb(197Au, X), E at 11.6 GeV/c/nucleon; measured exotic stranglet states production upper limits.

doi: 10.1016/S0375-9474(97)00399-0
Citations: PlumX Metrics


1997AR28      Phys.Rev. D56, 2509 (1997)

T.A.Armstrong, and the Fermilab E760 Collaboration

Two-Body Neutral Final States Produced in Antiproton-Proton Annihilations at 2.911 ≤ √ s ≤ 3.686 GeV

NUCLEAR REACTIONS 1H(p-bar, X), E(cm)=2.9-3.7 GeV; measured π0π0, ηπ0, ηη, π0γ, γγ final states σ(θ); deduced power law dependence.

doi: 10.1103/PhysRevD.56.2509
Citations: PlumX Metrics


1996AR11      Phys.Lett. 385B, 479 (1996)

T.A.Armstrong, and the Fermilab E760 Collaboration

Precision Measurements of Antiproton-Proton Forward Elastic Scattering Parameters in the 3.7 to 6.2 GeV/c Region

NUCLEAR REACTIONS 1H(p-bar, p-bar), E at 3.7-6.2 GeV/c; measured differential σ; deduced forward scattering parameters.

doi: 10.1016/0370-2693(96)01026-X
Citations: PlumX Metrics


1994SI30      Z.Phys. A347, 277 (1994)

A.A.Sibirtsev, T.A.Armstrong, C.Lam, R.A.Lewis, E.D.Minor, G.A.Smith

Fast Deuteron Production from Antiproton Annihilation at Rest on Carbon and Uranium Targets

NUCLEAR REACTIONS 12C, 238U(p-bar, d), E at rest; measured deuteron yields up to Ed < 120 MeV following annihilation. Coalescence model.

doi: 10.1007/BF01289795
Citations: PlumX Metrics


1993AR03      Phys.Rev. C47, 1957 (1993)

T.A.Armstrong, J.P.Bocquet, G.Ericsson, T.Johansson, T.Krogulski, R.A.Lewis, F.Malek, M.Maurel, E.Monnand, J.Mougey, H.Nifenecker, J.Passaneau, P.Perrin, S.M.Polikanov, M.Rey-Campagnolle, C.Ristori, G.A.Smith, G.Tibell

Fission of Heavy Hypernuclei Formed in Antiproton Annihilation

NUCLEAR REACTIONS 238U(p-bar, X), E at 105 MeV/c; measured hypernuclei yield, fission (fragment)(fragment)-coin; deduced fission hypernuclei T1/2.

doi: 10.1103/PhysRevC.47.1957
Citations: PlumX Metrics


1993AR20      Phys.Rev.Lett. 70, 1212 (1993)

T.A.Armstrong, and the E-760 Collaboration

Proton Electromagnetic Form Factors in the Timelike Region from 8.9 to 13.0 GeV

NUCLEAR REACTIONS 1H(p-bar, e-e+), E=high; measured invariant mass for events. 1H deduced electromagnetic form factors.

doi: 10.1103/PhysRevLett.70.1212
Citations: PlumX Metrics


1992CH12      Phys.Rev. C45, 2332 (1992)

B.Chen, T.A.Armstrong, R.A.Lewis, R.Newton, G.A.Smith, J.P.Bocquet, F.Malek, H.Nifenecker, M.Maurel, E.Monnand, P.Perrin, C.Ristori, G.Ericsson, T.Johansson, G.Tibell, M.Rey-Campagnolle, S.Polikanov, T.Krogulski, J.Mougey

Neutron Yields and Angular Distributions Produced in Antiproton Annihilation at Rest in Uranium

NUCLEAR REACTIONS U(p-bar, F), E at rest; measured fission (fragment)n-coin, neutron yields; deduced fragment neutron emission mechanism.

doi: 10.1103/PhysRevC.45.2332
Citations: PlumX Metrics


1991GR22      Phys.Rev. D44, 1945 (1991)

N.A.Graf, M.Fero, M.Gee, M.Mandelkern, R.Ray, D.Schultz, J.Schultz, T.Usher, T.A.Armstrong, J.Biard, R.A.Lewis, S.M.Playfer, G.A.Smith, M.J.Soulliere, B.Bassalleck, D.M.Wolfe, P.Denes, G.Buche, L.Burcker, H.Koch, J.Schwertel, A.Angelopoulos, A.Apostolakis, H.Rozaki, L.Sakelliou

Search for Narrow States in the Inclusive γ-Ray Spectra Resulting from Antiproton Annihilations at Rest in Liquid Hydrogen and Deuterium

NUCLEAR REACTIONS 1H(p-bar, X), E at rest; measured annihilation γ-spectra.

doi: 10.1103/PhysRevD.44.1945
Citations: PlumX Metrics


1990MI09      Z.Phys. A336, 461 (1990)

E.D.Minor, T.A.Armstrong, R.Bishop, V.Harris, R.A.Lewis, G.A.Smith

Charged Pion Spectra and Energy Transfer following Antiproton Annihilation at Rest in Carbon and Uranium

NUCLEAR REACTIONS C, U(p-bar, X), E at rest; measured charge pion multiplicities; deduced total energy yield. Intranuclear cascade model.


1972AR09      Nucl.Phys. B41, 445 (1972)

T.A.Armstrong, W.R.Hogg, G.M.Lewis, A.W.Robertson, G.R.Brookes, A.S.Clough, J.H.Freeland, W.Galbraith, A.F.King, W.R.Rawlinson, N.R.S.Tait, J.C.Thompson, D.W.L.Tolfree

The Total Photon Deuteron Hadronic Cross Section in the Energy Range 0.265-4.215 GeV

NUCLEAR REACTIONS 2H(γ, n), (γ, p), E=0.265-4.215 GeV; measured σ for hadron production.

doi: 10.1016/0550-3213(72)90403-8
Citations: PlumX Metrics


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