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Your search keyword '"B. Terburg"' showing total 7 results
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7 results on '"B. Terburg"'

1. Electroproduction of kaons on light nuclei

Author

R. Sawafta, J. H. Liu, John C. Mitchell, T. Eden, C. Yan, D. G. Meekins, E. Christy, F. Dohrmann, P. Ambrozewicz, L. Cole, M. Sarsour, A. Ahmidouch, Y. Sato, P. E. Reimer, S. Tajima, J. A. Dunne, J. Roche, S. Danagoulian, Kevin Bailey, B. Mueller, J. W. Price, W. Hinton, N. S. Chant, H. Mkrtchyan, J. Crowder, H. Juengst, Haiyan Gao, John Arrington, G. Savage, C. Cothran, J. P. Schiffer, B. Zihlmann, M. Zeier, H. C. Fenker, J.-O. Hansen, Paul Gueye, Rolf Ent, R. D. Carlini, Brian Raue, R. Asaturyan, L. Gan, W. J. Cummings, A. Semenov, D. F. Geesaman, J. Cha, D. S. Brown, M. Elaasar, A. Cochran, H. Breuer, Dipangkar Dutta, Pete Markowitz, L. Yuan, J. Reinhold, H. Bitao, A. Uzzle, K. Gustafsson, B. Terburg, F. Duncan, S. Stepanyan, P. G. Roos, Ketevi Assamagan, Avraham Klein, G. Collins, Thomas O'Neill, D. Potterveld, V. Tadevosian, K. Garrow, H. E. Jackson, D. Koltenuk, C. S. Armstrong, Y. Liang, O. K. Baker, I. Niculescu, B. Zeidman, A. F. Lung, G. Niculescu, Toshinobu Miyoshi, H. Yamaguchi, R. Madey, D. Abbott, L. Ewell, H. T. Fortune, Y. Fujii, K. Hafidi, R. E. Segel, S. Beedoe, S. Mtingwa, C. J. Martoff, R. Mohring, C. E. Keppel, S. A. Wood, D. J. Mack, Stephen Avery, and L. G. Tang

Subjects
Physics, Nuclear and High Energy Physics, Meson, Proton, Helium-3, Hadron, Production (computer science), Elementary particle, Atomic physics, Nuclear Experiment, Lambda, Isotopes of helium
Abstract

The A(e,e{prime}K{sup +})YX reaction on H, D, {sup 3}He, and {sup 4}He was investigated in Hall C at CEBAF. Data were obtained for Q{sup 2} {approx} 0.35 and 0.5 GeV{sup 2} at 3.245 GeV. The missing mass spectra for both H and D are fitted with Monte-Carlo simulations incorporating peaks corresponding to {Lambda} production on the proton and {Sigma} production on both the proton and neutron. For D, the cross section ratio {Sigma}{sup 0}/{Sigma}{sup {minus}} {approx} 2, and excess yield close to the thresholds for {Lambda} and {Sigma} production can be attributed to final-state interactions that are compared to the data. The analysis of the data for the He targets is in a more preliminary state with broader quasi-free peaks resulting from the higher Fermi momenta. Evidence for bound {Lambda}-hypernuclear states is seen and other structure may be present.

Published
2001
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2. Quasifree(e,e′p)Reactions and Proton Propagation in Nuclei

Author

Alan M. Nathan, E. R. Kinney, A.O. Mateos, O. K. Baker, W. J. Cummings, Wolfgang Lorenzon, J. Reinhold, S. Barrow, D. H. Potterveld, V. Frolov, A. Ahmidouch, H. Mkrtchyan, R. E. Segel, Donal Day, B. Terburg, Ketevi Assamagan, L. G. Tang, C. Yan, K. Beard, R. Mohring, D. van Westrum, E. E. W. Bruins, J.-E. Ducret, J. Cha, Dipangkar Dutta, C. E. Keppel, P. Stoler, B. Zeidman, R. Suleiman, E. Belz, V. Tadevosyan, Kevin Bailey, R. D. Carlini, J.-O. Hansen, S. Danagoulian, Gabriel Niculescu, C. S. Armstrong, D. Abbott, C. Salgado, C. E. Jones, H. T. Fortune, D. Koltenuk, John C. Mitchell, Haiyan Gao, S. A. Wood, T. Eden, J. Arrington, W. Hinton, J. C. Yang, Thomas O'Neill, Ross Milner, J. W. Martin, H. E. Jackson, L. H. Kramer, J. Yu, J. A. Dunne, D. Beatty, S. Beedoe, R. J. Holt, C. Cothran, Ronald Gilman, J. W. Price, C. R. Jackson, Pete Markowitz, I. Niculescu, B. Zihlmann, M. Khandaker, Pat Welch, M. A. Miller, F. Duncan, David Mack, J. P. Schiffer, D. G. Meekins, Rolf Ent, Paul Gueye, E. J. Beise, D. F. Geesaman, C. Bochna, D. DeSchepper, Avraham Klein, K. McFarlane, R. Madey, W. Kim, C. F. Williamson, W. Zhao, Ts A. Amatuni, H. Breuer, S. B. Kaufman, James J. Kelly, and N. S. Chant

Subjects
Nuclear physics, Physics, Missing energy, Proton, Nuclear transparency, Scattering, Attenuation, Momentum transfer, Plane wave, General Physics and Astronomy, Atomic physics, Impulse (physics), Nuclear Experiment
Abstract

The (e,e'p) reaction was studies on targets of C, Fe, and Au at momentum transfers squared Q{sup 2} of 0.6, 1.3, 1.8 and 3.3 GeV{sup 2} in a region of kinematics dominated by quasifree electron-proton scattering. Missing energy and missing momentum distributions are reasonably well described by plane wave impulse approximation calculations with Q{sup 2} and A dependent corrections that measure the attenuation of the final state protons.

Published
1998
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3. Measurement of longitudinal and transverse cross sections in the3He(e,e′π+)3Hreaction atW=1.6 GeV

Author

J. Cha, Dipangkar Dutta, I. Niculescu, D. McKee, V. Tadevosyan, B. Mueller, Kevin Bailey, J. Arrington, B. Beise, P. Ambrozewicz, B. Zihlmann, D. Schepper, S. A. Wood, H. Breuer, J. A. Dunne, Toshiyuki Takahashi, H. Mkrtchyan, B. Terburg, R. D. Carlini, L. Gan, D. J. Mack, Paul Gueye, L. G. Tang, D. H. Potterveld, D. F. Geesaman, Ketevi Assamagan, Stephen Avery, R. Sawafta, R. E. Segel, N. S. Chant, John C. Mitchell, T. P. Welch, S. Stepanyan, P. G. Roos, D. Gaskell, V. Papavassiliou, C. Jackson, G. Hofman, B. Zeidman, Thomas O'Neill, C. E. Keppel, C. Glashausser, A. Lung, M. Harvey, J. Reinhold, Rolf Ent, D. Koltenuk, D. S. Brown, S. Beedoe, A. Gasparian, J. Volmer, A. A. Cowley, Osamu Hashimoto, H. E. Jackson, O. K. Baker, H. Anklin, A. Ahmidouch, L. Yuan, E. R. Kinney, D. van Westrum, S. Danagoulian, G. Niculescu, W. Hinton, and Ronald Gilman

Subjects
Physics, Nuclear and High Energy Physics, Meson production, Photon, Nuclear Theory, Virtual particle, Polarization (waves), Nuclear physics, Transverse plane, Pion, Pi, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Nucleon
Abstract

The coherent 3He(e,e{pi}+)3H reaction was measured at Q2 = 0.4 (GeV/c)2 and W = 1.6 GeV for two values of the virtual photon polarization, {epsilon}, allowing the separation of longitudinal and transverse cross sections. The results from the coherent process on 3He were compared to H(e,e{pi}+)n data taken at the same kinematics. This marks the first direct comparison of these processes. At these kinematics (p{pi} = 1.1 GeV/c), pion rescattering from the spectator nucleons in the 3He(e,e{pi}+)3H process is expected to be small, simplifying the comparison to {pi}+ production from the free proton.

Published
2001
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4. Separated spectral functions for the quasifree12C(e,e′p)reaction

Author

R. E. Segel, W. Kim, K. Beard, R. Mohring, A.O. Mateos, D. van Westrum, S. A. Wood, J. C. Yang, S. Barrow, P. Stoler, C. E. Keppel, M. A. Khandaker, John C. Mitchell, C. Jackson, L. G. Tang, S. Danagoulian, T. Eden, Gabriel Niculescu, R. J. Sutter, D. Abbott, R. Sawafta, H. T. Fortune, C. Bochna, Alan M. Nathan, J. Yu, P. E. Bosted, I. Niculescu, O. K. Baker, Ketevi Assamagan, J. W. Martin, Donal Day, B. Terburg, T. P. Welch, E. R. Kinney, J. Reinhold, A. Ahmidouch, V. Tadevosyan, D. Beatty, Kevin Bailey, Ross Milner, E. Meier, C. Cothran, Ts A. Amatuni, E. Belz, Paul Gueye, R. E. Chrien, B. Zihlmann, D. F. Geesaman, Avraham Klein, C. Salgado, H. Breuer, Wolfgang Lorenzon, J. Arrington, D. DeSchepper, J.-E. Ducret, J. A. Dunne, J.-O. Hansen, D. G. Meekins, J. P. Schiffer, W. Hinton, R. Suleiman, E. J. Beise, S. B. Kaufman, Rolf Ent, H. E. Jackson, C. Yan, R. Madey, C. F. Williamson, V. Frolov, H. Mkrtchyan, R. D. Carlini, R. J. Holt, D. H. Potterveld, J. W. Price, W. Zhao, J. Cha, James J. Kelly, Ronald Gilman, Dipangkar Dutta, N. S. Chant, C. S. Armstrong, Pete Markowitz, E. E.W. Bruins, K. McFarlane, David Mack, S. Beedoe, C. E. Jones, L. H. Kramer, Thomas O'Neill, M. A. Miller, F. Duncan, Haiyan Gao, W. J. Cummings, D. Koltenuk, and B. Zeidman

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, Missing energy, Proton, Nuclear Theory, Momentum transfer, Nuclear physics, Momentum, Parallel kinematics, Transverse plane, Physics::Accelerator Physics, Atomic physics, Nuclear Experiment, Nucleon
Abstract

A separation of the longitudinal and transverse 12 C(e, e8p) cross sections in the quasifree region has been performed in parallel kinematics at Q 2 of 0.64 and 1.8 GeV 2 for initial proton momentum ,80 MeV. The separated transverse and longitudinal spectral functions at Q 2 50.64 GeV 2 show significant differences for missing energy between 25 and 60 MeV indicating a breakdown in the single nucleon knockout picture. The transverse spectral functions exhibit definite momentum transfer dependence.

Published
2000
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5. Inclusive Electron-Nucleus Scattering at Large Momentum Transfer

Author

R. A. Lindgren, C. Bochna, I. Niculescu, D. G. Meekins, W. U. Boeglin, T. Petitjean, T. Averett, S. A. Wood, D. J. Mack, Dipangkar Dutta, C. Cothran, O. Rondon, G. Niculescu, C. E. Keppel, J. Jourdan, C. S. Armstrong, B. Zihlmann, D. G. Crabb, Ingo Sick, Rolf Ent, H. Mkrtchyan, A. Honegger, J. A. Dunne, R. D. Carlini, Oliver Keith Baker, L.J. de Bever, G. Collins, Curtis Smith, J. Zhao, C. Yan, D. Koltenuk, B. W. Filippone, R. D. McKeown, J. Arrington, B. Bray, E. W. Hughes, Donal Day, B. Terburg, J. Jensen, James McCarthy, A. Lung, W. F. Vulcan, and J. H. Mitchell

Subjects
Physics, Series (mathematics), Scattering, Astrophysics::High Energy Astrophysical Phenomena, Momentum transfer, General Physics and Astronomy, FOS: Physical sciences, Electron, Nuclear matter, Nuclear physics, medicine.anatomical_structure, medicine, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment (nucl-ex), Nucleon, Nuclear Experiment, Scaling, Nucleus
Abstract

Inclusive electron scattering is measured with 4.045 GeV incident beam energy from C, Fe and Au targets. The measured energy transfers and angles correspond to a kinematic range for Bjorken $x > 1$ and momentum transfers from $Q^2 = 1 - 7 (GeV/c)^2$. When analyzed in terms of the y-scaling function the data show for the first time an approach to scaling for values of the initial nucleon momenta significantly greater than the nuclear matter Fermi-momentum (i.e. $> 0.3$ GeV/c)., 5 pages TEX, 5 Postscript figures also available at http://www.krl.caltech.edu/preprints/OAP.html

Published
1998
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6. Measurement of the Proton's Neutral Weak Magnetic Form Factor

Author

E. Candell, J. Napolitano, Michael Pitt, B. Terburg, M. Farkhondeh, S. Kowalski, G. W. Dodson, Douglas H Beck, F. Duncan, R. D. McKeown, B. W. Filippone, A. Lung, S. P. Wells, R. C. DiBari, R. Mohring, R. Carr, B. Mueller, Lawrence Cardman, K. A. Dow, T. A. Forest, N. Simicevic, Haiyan Gao, E. J. Beise, D. Nilsson, and Wolfgang Korsch

Subjects
Proton, media_common.quotation_subject, Nuclear Theory, FOS: Physical sciences, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Asymmetry, Nuclear physics, 0103 physical sciences, Magnetic form factor, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, media_common, Physics, Elastic scattering, Magnetic moment, 010308 nuclear & particles physics, Scattering, Proton magnetic moment, 3. Good health, High Energy Physics::Experiment, Atomic physics, Electron scattering, Caltech Library Services
Abstract

We report the first measurement of the parity-violating asymmetry in elastic electron scattering from the proton. The asymmetry depends on the neutral weak magnetic form factor of the proton which contains new information on the contribution of strange quark-antiquark pairs to the magnetic moment of the proton. We obtain the value $G_M^Z= 0.34 \pm 0.09 \pm 0.04 \pm 0.05$ n.m. at $Q^2=0.1$ (GeV/c)${}^2$., 4 pages TEX, text available at http://www.krl.caltech.edu/preprints/OAP.html

Published
1997

7. Proton propagation through nuclei and the quasi-free reaction mechanism studied with

Author

Eppo E. W. Bruins, Sheldon Kaufman, V. Tadevosyan, Thomas O'Neill, Wooyoung Kim, John Arrington, Juerg Reinhold, C. Cothran, Kenneth McFarlane, J.-O. Hansen, Carlos Salgado, E. R. Kinney, Richard Madey, C. Yan, Beni Zihlmann, W. Zhao, W. J. Cummings, Shelton Beedoe, H. Mkrtchyan, Ketevi Assamagan, Dave Potterveld, Richard Milner, Donal Day, B. Terburg, Andi Klein, J. Fedchak, Tom Eden, Ralph Segel, Mike Miller, Pete Markowitz, H. T. Fortune, Rolf Ent, Joseph Mitchell, F. Duncan, D. G. Meekins, L. G. Tang, J. A. Dunne, R. D. Carlini, D. van Westrum, E. J. Beise, Jeffrey Martin, C. Bochna, S. Danagoulian, Cathleen Jones, Gabriel Niculescu, D. Beatty, Wolfgang Lorenzon, L. H. Kramer, J. W. Price, David Mack, P. Stoler, D. Abbott, V. V. Frolov, Ben Zeidman, Stephen Barrow, Claude Williamson, Paul Gueye, Mahbub Khandaker, D. F. Geesaman, Jean-Eric Ducret, J. Yu, I. Niculescu, J. P. Schiffer, Oliver K. Baker, James J. Kelly, N. S. Chant, K. Beard, C. Jackson, R. Mohring, R. J. Holt, A. Ahmidouch, C. E. Keppel, E. Belz, Ts A. Amatuni, A. F. Lung, Hal Jackson, W. Hinton, H. Breuer, Riad Suleiman, S. A. Wood, Haiyan Gao, Ronald Gilman, Doug Koltenuk, William Turchinetz, Arthur Mateos, D. DeSchepper, J. C. Yang, Pat Welch, J. Cha, Dipangkar Dutta, and C. S. Armstrong

Subjects
Nuclear reaction, Nuclear physics, Physics, Proton, Momentum transfer, Hadron, Elementary particle, Atomic physics, Nuclear Experiment, Nucleon, Energy (signal processing), Charged particle
Abstract

Jefferson Lab experiment E91-013 measured the energy dependence of proton propagation in nuclei, using the quasi-free (e, e{prime}p) reaction. The ratios of the experimental (e, e{prime}p) cross-sections integrated over the quasi-free region to PWIA calculations are presented as a function of momentum transfer, (0.6 < Q{sup 2} < 3.3 GeV{sup 2}) and target nucleus (C, Fe and Au). As a first step towards a longitudinal and transverse separation of the quasi-free cross-section, a super ratio of the measured to the calculated cross-sections at forward and backward angles is presented.

Published
1997
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