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Dive into the research topics where J. W. Lillberg is active.

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Featured researches published by J. W. Lillberg.


Physical Review Letters | 2001

Energy loss of fast quarks in nuclei

Mikkel B. Johnson; B. Z. Kopeliovich; I. K. Potashnikova; P. L. McGaughey; J. M. Moss; J. C. Peng; G. T. Garvey; M. J. Leitch; M. Adams; D. M. Alde; H. W. Baer; M. L. Barlett; C. N. Brown; W. E. Cooper; T. A. Carey; G. Danner; G. W. Hoffmann; Y. B. Hsiung; D. M. Kaplan; A. Klein; Christopher Lee; J. W. Lillberg; R. L. McCarthy; C. S. Mishra; M. Wang

We report an analysis of the nuclear dependence of the yield of Drell-Yan (DY) dimuons from the 800 GeV/c proton bombardment of


Physical Review D | 2000

Search for flavor-changing neutral currents and lepton-family-number violation in two-body D0 decays

D. Pripstein; G. Gidal; P. M. Ho; M. S. Kowitt; K. B. Luk; L. Isenhower; M. E. Sadler; R. Schnathorst; L. M. Lederman; M. H. Schub; C. N. Brown; W. E. Cooper; K. Gounder; C. S. Mishra; T. A. Carey; D. M. Jansen; R. G. Jeppesen; J. Kapustinsky; D. W. Lane; M. J. Leitch; J. W. Lillberg; P. L. McGaughey; J. M. Moss; J. C. Peng; D. M. Kaplan; W. R. Luebke; R. S. Preston; J. Sa; V. Tanikella; R. Childers

^2H


Nuclear Physics B (Proceedings Supplements) | 1993

Radiation damage effects on the silicon microstrip detector in E789 - A fixed target experiment at fermilab

J. Kapustinsky; M. Apolinski; J. G. Boissevain; C. N. Brown; G. Brown; T. A. Carey; Yih-Fan Chen; R. Childers; W. E. Cooper; C. W. Darden; G. Gidal; H. Glass; K. Gounder; P. M. Ho; D. Isenhower; D. M. Jansen; R. G. Jeppesen; D. M. Kaplan; G. C. Kiang; M. S. Kowitt; D. W. Lane; L. M. Lederman; M. J. Leitch; J. W. Lillberg; W. R. Luebke; K. B. Luk; V. M. Martin; P. L. McGaughey; C. S. Mishra; J. M. Moss

, C, Ca, Fe, and W targets. A light-cone formulation of the DY process is employed in the rest frame of the nucleus. In this frame, for


Intersections between particle and nuclear physics | 2008

Nuclear dependence of heavy quark production

P. L. McGaughey; D. M. Alde; H. W. Baer; T. A. Carey; G. T. Garvey; Andreas Klein; Christopher Lee; M. J. Leitch; J. W. Lillberg; C. S. Mishra; J. M. Moss; J. C. Peng; C. N. Brown; W. E. Cooper; Y. B. Hsiung; M. Adams; R. Guo; D. M. Kaplan; R. McCarthy; G. Danner; M. Wang; M. L. Barlett; G. W. Hoffmann

x_2\ll x_1


Physical Review D | 2000

Search for flavor-changing neutral currents and lepton-family-number violation in two-body [formula presented] decays

D. Pripstein; G. Gidal; P. M. Ho; M. S. Kowitt; K. B. Luk; M. J. Leitch; J. W. Lillberg; P. L. McGaughey; J. M. Moss; J. C. Peng

, DY production appears as bremsstrahlung of a virtual photon followed by decay into dileptons. We treat the two sources of nuclear suppression, energy loss and shadowing, in a consistent formulation. Shadowing, involving no free parameters, is calculated within the light-cone dipole formalism. Initial-state energy loss, the only unknown in the problem, is determined from a fit to the nuclear-dependence ratio versus


Physical Review D | 2000

Search for flavor-changing neutral currents and lepton-family-number violation in two-body D{sup 0} decays

D. Pripstein; G. Gidal; P. M. Ho; M. S. Kowitt; K. B. Luk; L. Isenhower; M. E. Sadler; R. Schnathorst; L.M. Lederman; M. H. Schub; C. N. Brown; W. E. Cooper; K. Gounder; C. S. Mishra; T. A. Carey; D. M. Jansen; R. G. Jeppesen; J. Kapustinsky; D. W. Lane; M. J. Leitch; J. W. Lillberg; P. L. McGaughey; J. M. Moss; J. C. Peng; Daniel M. Kaplan; W. Luebke; R. S. Preston; J. Sa; V. Tanikella; R. Childers

x_1


Proceedings of the XXVI international conference on high energy physics | 1992

Preliminary Results from Fermilab E789

J. C. Peng; J. G. Boissevain; T. A. Carey; D. M. Jansen; R. G. Jeppesen; J. Kapustinsky; D. W. Lane; M. J. Leitch; J. W. Lillberg; P. L. McGaughey; J. M. Moss; G. Brown; D. Isenhower; M. E. Sadler; R. Schnathorst; R. Schwindt; G. Gidal; P. M. Ho; M. S. Kowitt; K. B. Luk; D. Pripstein; L. M. Lederman; M. H. Schub; C. N. Brown; W. E. Cooper; H. Glass; K. Gounder; C. S. Mishra; M. Apolinski; W. R. Luebke

. With the assumption of constant energy loss per unit path length, we find


Physical Review Letters | 1990

Nuclear dependence of dimuon production at 800 GeV.

D. M. Alde; H. W. Baer; T. A. Carey; G. T. Garvey; Andreas Klein; C. Lee; M. J. Leitch; J. W. Lillberg; P. L. McGaughey; C. S. Mishra; J. M. Moss; J. C. Peng; C. N. Brown; W. E. Cooper; Y. B. Hsiung; M. Adams; R. Guo; D. M. Kaplan; R. McCarthy; G. Danner; M. J. Wang; M. L. Barlett; G. W. Hoffmann

-dE/dz = 2.32 \pm 0.52\pm 0.5


Physical Review Letters | 1991

A dependence of J/ psi and psi ' production at 800 GeV/c.

D. M. Alde; H. W. Baer; T. A. Carey; G. T. Garvey; A. Klein; Christopher Lee; M. J. Leitch; J. W. Lillberg; P. L. McGaughey; C. S. Mishra; J. M. Moss; J. C. Peng; C. N. Brown; W. E. Cooper; Y. B. Hsiung; M. Adams; R. Guo; D. M. Kaplan; R. McCarthy; G. Danner; M. Wang; M. L. Barlett; G. W. Hoffmann

GeV/fm. This is the first observation of a nonzero energy loss of partons traveling in nuclear environment.


Physical Review Letters | 1991

Nuclear dependence of the production of Upsilon resonances at 800-GeV

D. M. Alde; H. W. Baer; T. A. Carey; G. T. Garvey; Andreas Klein; C. Lee; M. J. Leitch; J. W. Lillberg; P. L. McGaughey; C. S. Mishra; J. M. Moss; J. C. Peng; C. N. Brown; W. E. Cooper; Y. B. Hsiung; M. Adams; R. Guo; D. M. Kaplan; R. McCarthy; G. Danner; M. J. Wang; M. L. Barlett; G. W. Hoffmann

Results of a search for the three neutral charm decays, D0 -> mu e, D0 -> mu mu, and D0 -> e e, are presented. This study was based on data collected in Experiment 789 at the Fermi National Accelerator Laboratory using 800 GeV/c proton-Au and proton-Be interactions. No evidence is found for any of the decays. Upper limits on the branching ratios, at the 90% confidence level, are obtained.

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J. M. Moss

Los Alamos National Laboratory

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M. J. Leitch

Los Alamos National Laboratory

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P. L. McGaughey

Los Alamos National Laboratory

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T. A. Carey

Los Alamos National Laboratory

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C. S. Mishra

Los Alamos National Laboratory

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G. Gidal

Lawrence Berkeley National Laboratory

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J. Kapustinsky

Los Alamos National Laboratory

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