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Dive into the research topics where R. Grace is active.

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Featured researches published by R. Grace.


Physics Letters B | 1982

Experimental observation of the Σ hypernuclei, Σ6H and Σ16C

H. Piekarz; S. Bart; R. Hackenburg; A.D. Hancock; E. Hungerford; B. Mayes; K. Sekharan; J. Piekarz; M. Deutsch; R.E. Chrien; S. Chen; M. J. Levine; D. Maurizio; M. May; H. Palevsky; Y. Xu; Peter D. Barnes; B. Basslleck; R. Eisenstein; R. Grace; C. J. Maher; P. Pile; R. Rieder; W. Wharton; R. L. Stearns

Abstract The hypernuclei Σ 6 H and Σ 16 C were observed by the (K − , π + ) reaction on targets of 6 Li and liquid O, respectively, at 713 MeV/ c incident K − momentum. Structure is seen in Σ 6 H which may be interpreted in terms of particle-hole excitations similar to the previously observed states in Λ 6 Li. The inablitity to resolve individual Σ hypernuclear levels in Σ 16 C, due in part to the excitation of non-coherent states as a result of the large momentum transfer of about 130 MeV/ c , precludes the extraction of the Σ-nucleus spin-orbit potential strength. The Σ-nucleus well depth appears to be 7 to 10 MeV less than that for the Λ.


Physical Review C | 1991

Nonleptonic weak decay of Lambda 5He and Lambda 12C.

John J. Szymanski; P. D. Barnes; G. Diebold; R. A. Eisenstein; G. B. Franklin; R. Grace; David W. Hertzog; C. J. Maher; B. P. Quinn; R. Rieder; Seydoux J; W. R. Wharton; S. Bart; R. E. Chrien; P. Pile; R. Sutter; Youg Xu; R. W. Hackenburg; E. Hungerford; T. Kishimoto; Tang Lg; B. Bassalleck; R. L. Stearns


Physical Review Letters | 1981

Observation of levels in /sup 13//sub. lambda. /C, /sup 14//sub. lambda. /N, and /sup 18//sub. lambda. /O hypernuclei

M. May; H. Piekarz; R.E. Chrien; Susan Chen; D. Maurizio; H. Palevsky; R. Sutter; Youg Xu; Peter D. Barnes; B. Bassalleck; Nicholas J. Colella; R. A. Eisenstein; R. Grace; P. Pile; F. Takeutchi; W. R. Wharton; M. Deutsch; J. Piekarz; S. Bart; R. Hackenburg; E. Hungerford; B. Mayes; L. Pinsky; R. Cester; R. L. Stearns


Physical Review Letters | 1985

Observation of Lambda -hypernuclei in the reaction 12C( pi +,K+) 1 Lambda 2C.

C. Milner; M. L. Barlett; G. W. Hoffmann; S. Bart; R. E. Chrien; P. Pile; P. D. Barnes; G. B. Franklin; R. Grace; Hans S. Plendl; J. F. Amann; T. S. Bhatia; Thomas Kozlowski; J. C. Peng; Richard R. Silbar; H. A. Thiessen; C. Glashausser; J. A. McGill; R. Hackenburg; E. Hungerford; R. L. Stearns


Physical Review Letters | 1983

OBSERVATION OF HYPERNUCLEAR GAMMA-RAY TRANSITIONS IN (LAMBDA) LI-7 AND (LAMBDA) BE-9

M. May; S. Bart; Susan Chen; R.E. Chrien; D. Maurizio; P. Pile; Youg Xu; R. Hackenburg; E. Hungerford; H. Piekarz; Y. Y. Xue; M. Deutsch; J. Piekarz; Peter D. Barnes; G. B. Franklin; R. Grace; C. J. Maher; R. Rieder; J. Szymanski; W. Wharton; R. L. Stearns; B. Bassalleck; B. Budick


Physical Review Letters | 1985

Weak decay of 1 Lambda 2C and 1 Lambda 1B hypernuclei.

R. Grace; Peter D. Barnes; R. A. Eisenstein; G. B. Franklin; C. J. Maher; R. Rieder; Seydoux J; John J. Szymanski; W. R. Wharton; S. Bart; R. E. Chrien; P. Pile; Youg Xu; R. Hackenburg; E. Hungerford; B. Bassalleck; M. Barlett; E.C. Milner; R. L. Stearns


Physical Review C | 1982

Kaon scattering from C and Ca at 800 MeV/c

Daniel Marlow; Peter D. Barnes; N.J. Colella; S. A. Dytman; R.A. Eisenstein; R. Grace; F. Takeutchi; W. R. Wharton; S. Bart; D. Hancock; R. Hackenberg; E. Hungerford; W. Mayes; L. Pinsky; T. M. Williams; Robert E. Chrien; H. Palevsky; R. Sutter


Physical Review C | 1990

Search for radiative transitions in the hypernucleus Lambda 10B.

R. E. Chrien; S. Bart; M. May; P. Pile; R. Sutter; P. D. Barnes; B. Bassalleck; R. A. Eisenstein; G. B. Franklin; R. Grace; Daniel Marlow; R. Rieder; Seydoux J; John J. Szymanski; W. R. Wharton; J. Derderian; Y. Civelekoglu; Moshe Deutsch; Prater J; Chu C; R. W. Hackenburg; E. Hungerford; T. Kishimoto; T. Fukuda; M. L. Barlett; Hoffman G; E.C. Milner; R. L. Stearns


Physical Review C | 1986

Triple-differential cross sections of the ( pi +,pp) reaction on lithium isotopes.

R. Rieder; Peter D. Barnes; B. Bassalleck; R. A. Eisenstein; G. B. Franklin; R. Grace; C. J. Maher; Philip H. Pile; J. Szymanski; W. Wharton; F. Takeutchi; J. F. Amann; S.A. Dytman; K.G.R. Doss


Physical Review C | 1986

/sup 67/Li(. pi. /sup +/,pd)/sup 3//sup ,//sup 4/He reactions at 59. 4 MeV

W. R. Wharton; P. D. Barnes; B. Bassalleck; R. A. Eisenstein; G. B. Franklin; R. Grace; C. J. Maher; P. Pile; R. Rieder; John J. Szymanski; F. Takeutchi; J. F. Amann; S.A. Dytman; K.G.R. Doss

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G. B. Franklin

Carnegie Mellon University

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S. Bart

Brookhaven National Laboratory

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P. Pile

Brookhaven National Laboratory

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R. Rieder

Carnegie Mellon University

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B. Bassalleck

Carnegie Mellon University

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C. J. Maher

Carnegie Mellon University

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R. A. Eisenstein

Carnegie Mellon University

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Peter D. Barnes

Carnegie Mellon University

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