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Your search keyword '"D. H. Barkhuff"' showing total 3 results
Start Over Author "D. H. Barkhuff" Journal physical review letters
3 results on '"D. H. Barkhuff"'

1. Search for Quadrupole Strength in the Electroexcitation of theΔ+(1232)

Author

A. J. Sarty, C. Mertz, B. D. Milbrath, J. Chen, C. F. Perdrisat, K. Joo, R. W. Lourie, K. Dow, J. J. Kelly, A. Bernstein, W. Bertozzi, G. A. Warren, D. H. Barkhuff, J. H. Mitchell, P. E. Ulmer, N. Kaloskamis, D. Tieger, R. J. Woo, C. Papanicolas, J. R. Comfort, J. M. Finn, J. I. McIntyre, S. Dolfini, C. Tschalær, W. Turchinetz, R. Miskimen, C. Kunz, G. Dodson, V. Burkert, L. Weinstein, M. Farkhondeh, A. Karabarbounis, S. Kowalski, J. Shaw, A. Young, S. E. Williamson, C. Vellidis, S. Van Verst, S. Soong, S. Gilad, Ricardo Alarcon, X. Jiang, and R. W. Gothe

Subjects
Delta, Nuclear physics, Physics, Cross section.transverse, Amplitude, Quadrupole, General Physics and Astronomy, Angular dependence, Excitation
Abstract

High precision 1H(e, e'p)pi0 measurements at Q2 = 0.126. (GeV/c)2 are reported, which allow the determination of quadrupole amplitudes in the gamma*N --> Delta transition; they simultaneously test the reliability of electroproduction models. The derived quadrupole-to-dipole (I = 3/2) amplitude ratios, RSM = (-6.5 +/- 0.2stat+sys+/-2.5mod)% and REM = 9-2.1 +/-0.2stat+sys +/-2.0mod)%, are dominated by model error. Previous RSM and REM results should be reconsidered after the model uncertainties associated with the method of their extraction are taken into account.

Published
2001

2. Search for quadrupole strength in the electroexcitation of the delta+(1232)

Author

C, Mertz, C E, Vellidis, R, Alarcon, D H, Barkhuff, A M, Bernstein, W, Bertozzi, V, Burkert, J, Chen, J R, Comfort, G, Dodson, S, Dolfini, K, Dow, M, Farkhondeh, J M, Finn, S, Gilad, R W, Gothe, X, Jiang, K, Joo, N I, Kaloskamis, A, Karabarbounis, J J, Kelly, S, Kowalski, C, Kunz, R W, Lourie, J I, McIntyre, B D, Milbrath, R, Miskimen, J H, Mitchell, C N, Papanicolas, C F, Perdrisat, A J, Sarty, J, Shaw, S B, Soong, D, Tieger, C, Tschalaer, W, Turchinetz, P E, Ulmer, S, Van Verst, G A, Warren, L B, Weinstein, S, Williamson, R J, Woo, and A, Young

Abstract

High-precision 1H(e,e'p)pi(0) measurements at Q2 = 0.126 (GeV/c)2 are reported, which allow the determination of quadrupole amplitudes in the gamma*N--Delta transition; they simultaneously test the reliability of electroproduction models. The derived quadrupole-to-dipole ( I = 3/2) amplitude ratios, R(SM) = (-6.5+/-0.2(stat+sys)+/-2.5(mod))% and R(EM) = (-2.1+/-0.2(stat+sys)+/-2.0(mod))%, are dominated by model error. Previous R(SM) and R(EM) results should be reconsidered after the model uncertainties associated with the method of their extraction are taken into account.

Published
2000

3. Erratum: Comparison of Polarization Observables in Electron Scattering from the Proton and Deuteron [Phys. Rev. Lett. 80, 452 (1998)]

Author

B. D. Milbrath, J. I. McIntyre, C. S. Armstrong, D. H. Barkhuff, W. Bertozzi, J. P. Chen, D. Dale, G. Dodson, K. A. Dow, M. B. Epstein, M. Farkhondeh, J. M. Finn, S. Gilad, M. K. Jones, K. Joo, J. J. Kelly, S. Kowalski, R. W. Lourie, R. Madey, D. J. Margaziotis, P. Markowitz, C. Mertz, J. Mitchell, C. F. Perdrisat, V. Punjabi, L. Qin, P. M. Rutt, A. J. Sarty, D. Tieger, C. Tschalær, W. Turchinetz, P. E. Ulmer, S. P. Van Verst, G. A. Warren, L. B. Weinstein, and R. J. Woo

Subjects
General Physics and Astronomy
Published
1999

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