Author: "Sick, I." / Database: OAIster - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Sick, I."' showing total 50 results

Start Over Author "Sick, I." Database OAIster

50 results on '"Sick, I."'

1. Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q^{2}=4 GeV^{2}.

Author: Albayrak, I, Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, Ye, Zhihong, E06-009 Collaboration, Albayrak, I, Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, Ye, Zhihong, and E06-009 Collaboration
Abstract: We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F_{2} structure function at large Bjorken-x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.
Published: 2019

2. Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q^{2}=4 GeV^{2}.

Author: Albayrak, I, Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, Ye, Zhihong, E06-009 Collaboration, Albayrak, I, Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, Ye, Zhihong, and E06-009 Collaboration
Abstract: We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F_{2} structure function at large Bjorken-x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.
Published: 2019

3. Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q^{2}=4 GeV^{2}.

Author: Albayrak, I, Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, Ye, Zhihong, E06-009 Collaboration, Albayrak, I, Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, Ye, Zhihong, and E06-009 Collaboration
Abstract: We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F_{2} structure function at large Bjorken-x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.
Published: 2019

4. Measurement of the asymmetries in 3$ \overrightarrow{\sf He}$(¯e, e′p)d and 3$ \overrightarrow{\sf He}$(¯e, e′p)np

Author: Achenbach, P., Baumann, D., Böhm, R., Boillat, B., Bosnar, D., Carasco, C., Ding, M., Distler, M., Friedrich, J., Glöckle, W., Golak, J., Goussev, Y., Grabmayr, P., Heil, W., Hügli, A., Jennewein, P., Jover Ma nas, G., Jourdan, J., Kamada, H., Klechneva, T., Krusche, B., Krygier, K., Llongo, J., Lloyd, M., Makek, M., Merkel, H., Micheli, C., Müller, U., Nogga, A., Neuhausen, R., Normand, Ch, Nungesser, L., Ott, A., Otten, E., Parpan, F., Pérez Benito, R., Potokar, M., Rohe, D., Rudersdorf, D., Schmiedeskamp, J., Seimetz, M., Sick, I., Širca, S., Skibiński, R., Stave, S., Testa, G., Trojer, R., Walcher, Th, Weis, M., Witała, H., Wöhrle, H., Achenbach, P., Baumann, D., Böhm, R., Boillat, B., Bosnar, D., Carasco, C., Ding, M., Distler, M., Friedrich, J., Glöckle, W., Golak, J., Goussev, Y., Grabmayr, P., Heil, W., Hügli, A., Jennewein, P., Jover Ma nas, G., Jourdan, J., Kamada, H., Klechneva, T., Krusche, B., Krygier, K., Llongo, J., Lloyd, M., Makek, M., Merkel, H., Micheli, C., Müller, U., Nogga, A., Neuhausen, R., Normand, Ch, Nungesser, L., Ott, A., Otten, E., Parpan, F., Pérez Benito, R., Potokar, M., Rohe, D., Rudersdorf, D., Schmiedeskamp, J., Seimetz, M., Sick, I., Širca, S., Skibiński, R., Stave, S., Testa, G., Trojer, R., Walcher, Th, Weis, M., Witała, H., and Wöhrle, H.
Abstract: The electron target asymmetries A || and A⊥ with target spin parallel and perpendicular to the momentum transfer $\ensuremath{\boldsymbol{q}}$ were measured for both the two- and three-body breakup of 3He in the 3 $ \overrightarrow{\rm He}$ (¯e, e'p)-reaction. Polarized electrons were scattered off polarized 3He in the quasielastic regime in parallel kinematics with the scattered electron and the knocked-out proton detected using the Three-Spectrometer Facility at MAMI. The results are compared to Faddeev calculations which take into account Final-State Interactions as well as Meson Exchange Currents. The experiment confirms the prediction of a large effect of Final-State Interactions in the asymmetry of the three-body breakup and of an almost negligible one for the two-body breakup
Published: 2018

5. Improved radiative corrections for (e, e'p) experiments: Beyond the peaking approximation and implications of the soft-photon approximation

Author: Weissbach, F., Hencken, K., Rohe, D., Sick, I., Trautmann, D., Weissbach, F., Hencken, K., Rohe, D., Sick, I., and Trautmann, D.
Abstract: Analyzing (e, e'p) experimental data involves corrections for radiative effects which change the interaction kinematics and which have to be carefully considered in order to obtain the desired accuracy. Missing momentum and energy due to bremsstrahlung have so far often been incorporated into the simulations and the experimental analyses using the peaking approximation. It assumes that all bremsstrahlung is emitted in the direction of the radiating particle. In this article we introduce a full angular Monte Carlo simulation method which overcomes this approximation. As a test, the angular distribution of the bremsstrahlung photons is reconstructed from H(e, e'p) data. Its width is found to be underestimated by the peaking approximation and described much better by the approach developed in this work. The impact of the soft-photon approximation on the photon angular distribution is found to be minor as compared to the impact of the peaking approximation
Published: 2018

6. The neutron charge form factor and target analyzing powers from 3He(e, e'n) scattering

Author: Institut für Physik, Johannes Gutenberg-Universität, Institut für Kernphysik, Johannes Gutenberg-Universität, Departement für Physik und Astronomie, Universität Basel, Department of Physics, University of Zagreb, Institute of Physics, Jagiellonian University, Institut für Theoretische Physik II, Ruhr-Universität Bochum, Department of Physics, Kyushu Institute of Technology, Department of Physics, Old Dominian University, Department of Physics, University of Arizona, Institute Jožef Stefan, University of Ljubljana, Departement für, Physik und Astronomie, Universität Basel, Bermuth, J., Merle, P., Carasco, C.C., Baumann, D., Boehm, R., Bosnar, D., Ding, M., Distler, M. O., Friedrich, J., Friedrich, J.M., Golak, J., Gloeckle, W., Hauger, M., Heil, W., Jennewein, P., Jourdan, J., Kamada, H., Klein, A., Kohl, M., Krusche, B., Krygier, K. W., Merkel, H., Mueller, U., Neuhausen, R., Nogga, A., Normand, Ch., Otten, E., Pospischil, Th., Potokar, M., Rohe, D., Schmieden, H., Schmiedeskamp, J., Seimetz, M., Sick, I., Sirca, S., Skibinski, S., Testa, G., Walcher, Th., Warren, G., Weis, M., Witala, H., Woehrle, H., Zeier, M., Institut für Physik, Johannes Gutenberg-Universität, Institut für Kernphysik, Johannes Gutenberg-Universität, Departement für Physik und Astronomie, Universität Basel, Department of Physics, University of Zagreb, Institute of Physics, Jagiellonian University, Institut für Theoretische Physik II, Ruhr-Universität Bochum, Department of Physics, Kyushu Institute of Technology, Department of Physics, Old Dominian University, Department of Physics, University of Arizona, Institute Jožef Stefan, University of Ljubljana, Departement für, Physik und Astronomie, Universität Basel, Bermuth, J., Merle, P., Carasco, C.C., Baumann, D., Boehm, R., Bosnar, D., Ding, M., Distler, M. O., Friedrich, J., Friedrich, J.M., Golak, J., Gloeckle, W., Hauger, M., Heil, W., Jennewein, P., Jourdan, J., Kamada, H., Klein, A., Kohl, M., Krusche, B., Krygier, K. W., Merkel, H., Mueller, U., Neuhausen, R., Nogga, A., Normand, Ch., Otten, E., Pospischil, Th., Potokar, M., Rohe, D., Schmieden, H., Schmiedeskamp, J., Seimetz, M., Sick, I., Sirca, S., Skibinski, S., Testa, G., Walcher, Th., Warren, G., Weis, M., Witala, H., Woehrle, H., and Zeier, M.
Abstract: type:Journal Article, The charge form factor of the neutron has been determined from asymmetries measured in quasi-elastic 3He(e, e'n) at a momentum transfer of 0.67 (GeV/c)2. In addition, the target analyzing power, Ayo, has been measured to study effects of final state interactions and meson exchange currents., source:http://www.sciencedirect.com/science/article/pii/S0370269303007251
Published: 2017

7. Final State Interaction Effects in 3He(e ,e'p)

Author: Department für Physik und Astronomie, Universität Basel, Insitut für Physik, Johannes Gutenberg-Universität, Insitut für Kernphysik, Johannes Gutenberg-Universität, Department of Physics, University of Zagreb, Insitut für Kernphysik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-Universität, Institute of Physics, Jagiellonian University, Insitut für Theoretische Physik II, Ruhr-Universität Bochum, Department of Physics, Kyushu Institute of Technology, Department of Physics, Old Dominian University, Institut für Kernphysik, Technische Universität Darmstadt, Department of Physics, University of Arizona, Insitut für Physik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-Universität, Institute Jožef Stefan, University of Ljubljana, Carasco, C., Bermuth, J., Merle, P., Bartsch, P., Baumann, D., Böhm, R., Bosnar, D., Ding, M., Distler, M.O., Friedrich, J., Friedrich, J.M., Golak, J., Glöckle, W., Hauger, M., Heil, W., Jennewein, P., Jourdan, J., Kamada, H., Klein, A., Kohl, M., Krygier, K.W., Merkel, H., Müller, U., Neuhausen, R., Nogga, A., Normand, Ch., Otten, E., Pospischil, Th., Potokar, M., Rohe, D., Schmieden, H., Schmiedeskamp, J., Seimetz, M., Sick, I., Širca, S., Skibiński, R., Testa, G., Walcher, Th., Warren, G., Weis, M., Witała, H., Wöhrle, H., Zeier, M., Department für Physik und Astronomie, Universität Basel, Insitut für Physik, Johannes Gutenberg-Universität, Insitut für Kernphysik, Johannes Gutenberg-Universität, Department of Physics, University of Zagreb, Insitut für Kernphysik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-Universität, Institute of Physics, Jagiellonian University, Insitut für Theoretische Physik II, Ruhr-Universität Bochum, Department of Physics, Kyushu Institute of Technology, Department of Physics, Old Dominian University, Institut für Kernphysik, Technische Universität Darmstadt, Department of Physics, University of Arizona, Insitut für Physik, Johannes Gutenberg-UniversitätInsitut für Kernphysik, Johannes Gutenberg-Universität, Institute Jožef Stefan, University of Ljubljana, Carasco, C., Bermuth, J., Merle, P., Bartsch, P., Baumann, D., Böhm, R., Bosnar, D., Ding, M., Distler, M.O., Friedrich, J., Friedrich, J.M., Golak, J., Glöckle, W., Hauger, M., Heil, W., Jennewein, P., Jourdan, J., Kamada, H., Klein, A., Kohl, M., Krygier, K.W., Merkel, H., Müller, U., Neuhausen, R., Nogga, A., Normand, Ch., Otten, E., Pospischil, Th., Potokar, M., Rohe, D., Schmieden, H., Schmiedeskamp, J., Seimetz, M., Sick, I., Širca, S., Skibiński, R., Testa, G., Walcher, Th., Warren, G., Weis, M., Witała, H., Wöhrle, H., and Zeier, M.
Abstract: type:Journal Article, Asymmetries in quasi-elastic 3He(e ,e'p) have been measured at a momentum transfer of 0.67 (GeV/c)2 and are compared to a calculation which takes into account relativistic kinematics in the final state and a relativistic one-body current operator. With an exact solution of the Faddeev equation for the Full-size image 3He-ground state and an approximate treatment of final state interactions in the continuum good agreement is found with the experimental data., source:http://www.sciencedirect.com/science/article/pii/S037026930300306X
Published: 2017

8. Neutron densities from parity-violating elastic electron scaterring.

Author: Moreno, Óscar, Sarriguren, Pedro, Moya de Guerra, Elvira, Udías, J.M., Donelly, T.W., Sick, I., Moreno, Óscar, Sarriguren, Pedro, Moya de Guerra, Elvira, Udías, J.M., Donelly, T.W., and Sick, I.
Abstract: We analyze parity-violating elastic electron scattering as a complementary tool for precise determination of neutron densities in nuclei. In particular we discuss how to extract the ratio between neutron and proton rms radii and monopole form factors from theoretical and experimental asymmetries. The structure of the nuclear target is obtained from a Skyrme Hartree-Fock mean field with pairing interactions in BCS approximation. We focus on the parity-violation asymmetry for 208Pb and for 12C as examples of N > Z and N = Z nuclei. In the latter case we study the influence of nuclear isospin mixing by means of the asymmetry deviation. Distorted wave calculations are shown and are compared to plane wave impulse approximation.
Published: 2011

9. Nuclear isospin mixing and elastic parity-violating electron scattering

Author: Moreno, Óscar, Sarriguren, Pedro, Moya de Guerra, Elvira, Udias, J. M., Donnelly, T. W., Sick, I., Moreno, Óscar, Sarriguren, Pedro, Moya de Guerra, Elvira, Udias, J. M., Donnelly, T. W., and Sick, I.
Abstract: The influence of nuclear isospin mixing on parity-violating elastic electron scattering is studied for the even–even, N=Z nuclei 12C, 24Mg, 28Si, and 32S. Their ground-state wave functions have been obtained using a self-consistent axially-symmetric mean-field approximation with density-dependent effective two-body Skyrme interactions. Some differences from previous shell-model calculations appear for the isovector Coulomb form factors which play a role in determining the parity-violating asymmetry. To gain an understanding of how these differences arise, the results have been expanded in a spherical harmonic oscillator basis. Results are obtained not only within the plane-wave Born approximation, but also using the distorted-wave Born approximation for comparison with potential future experimental studies of parity-violating electron scattering. To this end, for each nucleus the focus is placed on kinematic ranges where the signal (isospin-mixing effects on the parity-violating asymmetry) and the experimental figure-of-merit are maximized. Strangeness contributions to the asymmetry are also briefly discussed, since they and the isospin mixing contributions may play comparable roles for the nuclei being studied at the low momentum transfers of interest in the present work.
Published: 2009

10. Proton Spin Structure in the Resonance Region

Author: RSS Collaboration, Wesselmann, F. R., Slifer, K., Tajima, S., Aghalaryan, A., Ahmidouch, A., Asaturyan, R., Bloch, F., Boeglin, W., Bosted, P., Carasco, C., Carlini, R., Cha, J., Chen, J. P., Christy, M. E., Cole, L., Coman, L., Crabb, D., Danagoulian, S., Day, D., Dunne, J., Elaasar, M., Ent, R., Fenker, H., Frlez, E., Gan, L., Gaskell, D., Gomez, J., Hu, B., Jones, M. K., Jourdan, J., Keith, C., Keppel, C. E., Khandaker, M., Klein, A., Kramer, L., Liang, Y., Lichtenstadt, J., Lindgren, R., Mack, D., McKee, P., McNulty, D., Meekins, D., Mkrtchyan, H., Nasseripour, R., Niculescu, I., Normand, K., Norum, B., Pocanic, D., Prok, Y., Raue, B., Reinhold, J., Roche, J., Rohe, D., Rondon, O. A., Savvinov, N., Sawatzky, B., Seely, M., Sick, I., Smith, C., Smith, G., Stepanyan, S., Tang, L., Testa, G., Vulcan, W., Wang, K., Warren, G., Wood, S., Yan, C., Yuan, L., Yun, J., Zeier, M., Zhu, H., RSS Collaboration, Wesselmann, F. R., Slifer, K., Tajima, S., Aghalaryan, A., Ahmidouch, A., Asaturyan, R., Bloch, F., Boeglin, W., Bosted, P., Carasco, C., Carlini, R., Cha, J., Chen, J. P., Christy, M. E., Cole, L., Coman, L., Crabb, D., Danagoulian, S., Day, D., Dunne, J., Elaasar, M., Ent, R., Fenker, H., Frlez, E., Gan, L., Gaskell, D., Gomez, J., Hu, B., Jones, M. K., Jourdan, J., Keith, C., Keppel, C. E., Khandaker, M., Klein, A., Kramer, L., Liang, Y., Lichtenstadt, J., Lindgren, R., Mack, D., McKee, P., McNulty, D., Meekins, D., Mkrtchyan, H., Nasseripour, R., Niculescu, I., Normand, K., Norum, B., Pocanic, D., Prok, Y., Raue, B., Reinhold, J., Roche, J., Rohe, D., Rondon, O. A., Savvinov, N., Sawatzky, B., Seely, M., Sick, I., Smith, C., Smith, G., Stepanyan, S., Tang, L., Testa, G., Vulcan, W., Wang, K., Warren, G., Wood, S., Yan, C., Yuan, L., Yun, J., Zeier, M., and Zhu, H.
Abstract: We have examined the spin structure of the proton in the region of the nucleon resonances (1.085 GeV < W < 1.910 GeV) at an average four momentum transfer of Q^2 = 1.3 GeV^2. Using the Jefferson Lab polarized electron beam, a spectrometer, and a polarized solid target, we measured the asymmetries A_parallel and A_perp to high precision, and extracted the asymmetries A_1 and A_2, and the spin structure functions g_1 and g_2. We found a notably non-zero A_perp, significant contributions from higher-twist effects, and only weak support for polarized quark--hadron duality., Comment: 6 pages, 4 figures, REVTeX4, similar to PRL submission, plots colorized and appenix added, v3: minor edit, matches PRL
Published: 2006
Full Text: View/download PDF

11. Using electron scattering superscaling to predict charge-changing neutrino cross sections in nuclei

Author: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., Sick, I., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but also the region where excitation dominates. With reasonable assumptions about the basic nuclear scaling function extracted from data and information from other studies of the relative roles played by correlation and meson-exchange-current effects, it is shown that the residual strength in the resonance region can be accounted for through an extended scaling analysis. One observes scaling upon assuming that the elementary cross section by which one divides the residual to obtain a new scaling function is dominated by the N→ transition and employing a new scaling variable suited to the resonance region. This yields a good representation of the electromagnetic response in both the quasielastic and regions. The scaling approach is then inverted and predictions are made for charge-changing neutrino reactions at energies of a few GeV, with focus placed on nuclei that are relevant to neutrino oscillation measurements. For this, a relativistic treatment of the required weak interaction vector and axial-vector currents for both quasielastic and -excitation processes is presented.
Published: 2005

12. Using electron scattering superscaling to predict charge-changing neutrino cross sections in nuclei

Author: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., Sick, I., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but also the region where excitation dominates. With reasonable assumptions about the basic nuclear scaling function extracted from data and information from other studies of the relative roles played by correlation and meson-exchange-current effects, it is shown that the residual strength in the resonance region can be accounted for through an extended scaling analysis. One observes scaling upon assuming that the elementary cross section by which one divides the residual to obtain a new scaling function is dominated by the N→ transition and employing a new scaling variable suited to the resonance region. This yields a good representation of the electromagnetic response in both the quasielastic and regions. The scaling approach is then inverted and predictions are made for charge-changing neutrino reactions at energies of a few GeV, with focus placed on nuclei that are relevant to neutrino oscillation measurements. For this, a relativistic treatment of the required weak interaction vector and axial-vector currents for both quasielastic and -excitation processes is presented.
Published: 2005

13. Superscaling and Charge-changing Neutrino Cross Sections

Author: Barbaro, M. B., Amaro, J. E., Caballero, J. A., Donnelly, T. W., Molinari, A., Sick, I., Barbaro, M. B., Amaro, J. E., Caballero, J. A., Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: The superscaling function extracted from inclusive electron scattering data is used to predict high energy charge-changing neutrino cross sections in the quasi-elastic and $\Delta$ regions., Comment: 3 pages, 2 figures, to appear in the Proceedings of the 7th International Workshop on Neutrino Factories and Superbeams, Laboratori Nazionali di Frascati, Frascati (Rome), June 21 - 26, 2005
Published: 2005
Full Text: View/download PDF

14. Using electron scattering superscaling to predict charge-changing neutrino cross sections in nuclei

Author: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., Sick, I., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but also the region where excitation dominates. With reasonable assumptions about the basic nuclear scaling function extracted from data and information from other studies of the relative roles played by correlation and meson-exchange-current effects, it is shown that the residual strength in the resonance region can be accounted for through an extended scaling analysis. One observes scaling upon assuming that the elementary cross section by which one divides the residual to obtain a new scaling function is dominated by the N→ transition and employing a new scaling variable suited to the resonance region. This yields a good representation of the electromagnetic response in both the quasielastic and regions. The scaling approach is then inverted and predictions are made for charge-changing neutrino reactions at energies of a few GeV, with focus placed on nuclei that are relevant to neutrino oscillation measurements. For this, a relativistic treatment of the required weak interaction vector and axial-vector currents for both quasielastic and -excitation processes is presented.
Published: 2005

15. Superscaling and Charge-changing Neutrino Cross Sections

Author: Barbaro, M. B., Amaro, J. E., Caballero, J. A., Donnelly, T. W., Molinari, A., Sick, I., Barbaro, M. B., Amaro, J. E., Caballero, J. A., Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: The superscaling function extracted from inclusive electron scattering data is used to predict high energy charge-changing neutrino cross sections in the quasi-elastic and $\Delta$ regions., Comment: 3 pages, 2 figures, to appear in the Proceedings of the 7th International Workshop on Neutrino Factories and Superbeams, Laboratori Nazionali di Frascati, Frascati (Rome), June 21 - 26, 2005
Published: 2005
Full Text: View/download PDF

16. Using electron scattering superscaling to predict charge-changing neutrino cross sections in nuclei

Author: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., Sick, I., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but also the region where excitation dominates. With reasonable assumptions about the basic nuclear scaling function extracted from data and information from other studies of the relative roles played by correlation and meson-exchange-current effects, it is shown that the residual strength in the resonance region can be accounted for through an extended scaling analysis. One observes scaling upon assuming that the elementary cross section by which one divides the residual to obtain a new scaling function is dominated by the N→ transition and employing a new scaling variable suited to the resonance region. This yields a good representation of the electromagnetic response in both the quasielastic and regions. The scaling approach is then inverted and predictions are made for charge-changing neutrino reactions at energies of a few GeV, with focus placed on nuclei that are relevant to neutrino oscillation measurements. For this, a relativistic treatment of the required weak interaction vector and axial-vector currents for both quasielastic and -excitation processes is presented.
Published: 2005

17. Using electron scattering superscaling to predict charge-changing neutrino cross sections in nuclei

Author: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., Sick, I., Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Department of Energy. United States, Amaro Soriano, José Enrique, Barbaro, M. B., Caballero Carretero, Juan Antonio, Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but also the region where excitation dominates. With reasonable assumptions about the basic nuclear scaling function extracted from data and information from other studies of the relative roles played by correlation and meson-exchange-current effects, it is shown that the residual strength in the resonance region can be accounted for through an extended scaling analysis. One observes scaling upon assuming that the elementary cross section by which one divides the residual to obtain a new scaling function is dominated by the N→ transition and employing a new scaling variable suited to the resonance region. This yields a good representation of the electromagnetic response in both the quasielastic and regions. The scaling approach is then inverted and predictions are made for charge-changing neutrino reactions at energies of a few GeV, with focus placed on nuclei that are relevant to neutrino oscillation measurements. For this, a relativistic treatment of the required weak interaction vector and axial-vector currents for both quasielastic and -excitation processes is presented.
Published: 2005

18. Using Electron Scattering Superscaling to predict Charge-changing Neutrino Cross Sections in Nuclei

Author: Amaro, J. E., Barbaro, M. B., Caballero, J. A., Donnelly, T. W., Molinari, A., Sick, I., Amaro, J. E., Barbaro, M. B., Caballero, J. A., Donnelly, T. W., Molinari, A., and Sick, I.
Abstract: Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but now also into the region where $\Delta$-excitation dominates. It is shown that, with reasonable assumptions about the basic nuclear scaling function extracted from data and information from other studies of the relative roles played by correlation and MEC effects, the residual strength in the resonance region can be accounted for through an extended scaling analysis. One observes scaling upon assuming that the elementary cross section by which one divides the residual to obtain a new scaling function is dominated by the $N\to\Delta$ transition and employing a new scaling variable which is suited to the resonance region. This yields a good representation of the electromagnetic response in both the quasielastic and $\Delta$ regions. The scaling approach is then inverted and predictions are made for charge-changing neutrino reactions at energies of a few GeV, with focus placed on nuclei which are relevant for neutrino oscillation measurements. For this a relativistic treatment of the required weak interaction vector and axial-vector currents for both quasielastic and $\Delta$-excitation processes is presented., Comment: 42 pages, 9 figures, accepted for publication in Physical Review C
Published: 2004
Full Text: View/download PDF

19. Precision measurement of the proton and deuteron spin structure functions g2 and asymmetries A2

Author: Naval Postgraduate School (U.S.), E155 Collaboration, Abe, K., Akagi, T., Anthony, P L., Antonov, R D., Arnold, R G., Averett, T., Band, H R., Bauer, J M., Borel, H., Bosted, P E., Breton, V., Button-Shafer, J., Chen, J P., Chupp, T E., Clendenin, J E., Comptour, C., Coulter, K P., Court, G R., Crabb, D., Daoudi, M., Day, D., Dietrich, F S., Dunne, J., Dutz, H., Erbacher, R D., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R A., Gómez, J., Grenier, P., Griffioen, K., Høibraten, S., Hughes, E W., Hyde-Wright, C E., Johnson, J R., Kawall, D., Klein, A., Kuhn, S E., Kuriki, M., Lindgren, R., Liu, T., Lombard-Nelsen, R M., Marroncle, J., Maruyama, T., Maruyama, X K., McCarthy, J., Meyer, W T., Meziani, Z E., Minehart, R C., Mitchell, J., Morgenstern, J., Petratos, G G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B A., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L S., Rock, S E., Rondon-Aramayo, O A., Sick, I., Smith, L C., Smith, T B., Spengos, M., Staley, F., Steiner, P., Saint-Lorant, S J., Stuart, L M., Suekane, F., Szalata, Z M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J L., Witte, K., Young, C C., Youngman, B., Yuta, H., Zapalac, G H., Zihlmann, B., Zimmerman, D., Naval Postgraduate School (U.S.), E155 Collaboration, Abe, K., Akagi, T., Anthony, P L., Antonov, R D., Arnold, R G., Averett, T., Band, H R., Bauer, J M., Borel, H., Bosted, P E., Breton, V., Button-Shafer, J., Chen, J P., Chupp, T E., Clendenin, J E., Comptour, C., Coulter, K P., Court, G R., Crabb, D., Daoudi, M., Day, D., Dietrich, F S., Dunne, J., Dutz, H., Erbacher, R D., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R A., Gómez, J., Grenier, P., Griffioen, K., Høibraten, S., Hughes, E W., Hyde-Wright, C E., Johnson, J R., Kawall, D., Klein, A., Kuhn, S E., Kuriki, M., Lindgren, R., Liu, T., Lombard-Nelsen, R M., Marroncle, J., Maruyama, T., Maruyama, X K., McCarthy, J., Meyer, W T., Meziani, Z E., Minehart, R C., Mitchell, J., Morgenstern, J., Petratos, G G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B A., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L S., Rock, S E., Rondon-Aramayo, O A., Sick, I., Smith, L C., Smith, T B., Spengos, M., Staley, F., Steiner, P., Saint-Lorant, S J., Stuart, L M., Suekane, F., Szalata, Z M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J L., Witte, K., Young, C C., Youngman, B., Yuta, H., Zapalac, G H., Zihlmann, B., and Zimmerman, D.
Abstract: We have measured the spin structure functions g2p and g2d and the virtual photon asymmetries A2p and A2d over the kinematic range 0.02 < x < 0.8 and 0.7 < Q^2 < 20 GeV^2 by scattering 29.1 and 32.3 GeV longitudinally polarized electrons from transversely polarized NH3 and 6LiD targets. Our measured g2 approximately follows the twist-2 Wandzura-Wilczek calculation. The twist-3 reduced matrix elements d2p and d2n are less than two standard deviations from zero. The data are inconsistent with the Burkhardt-Cottingham sum rule if there is no pathological behavior as x->0. The Efremov-Leader-Teryaev integral is consistent with zero within our measured kinematic range. The absolute value of A2 is significantly smaller than the sqrt[R(1+A1)/2] limit.
Published: 2003

20. Many-body theory interpretation of deep inelastic scattering

Author: Benhar, O., Pandharipande, V. R., Sick, I., Benhar, O., Pandharipande, V. R., and Sick, I.
Abstract: We analyze data on deep inelastic scattering of electrons from the proton using ideas from standard many-body theory involving {\em bound} constituents subject to {\em interactions}. This leads us to expect, at large three-momentum transfer ${\bf{q}}$, scaling in terms of the variable $\tilde{y}=\nu-{\bf |q|}$. The response at constant ${\bf |q|}$ scales well in this variable. Interaction effects are manifestly displayed in this approach. They are illustrated in two examples., Comment: 10 pages, 4 figures
Published: 2000
Full Text: View/download PDF

21. Many-body theory interpretation of deep inelastic scattering

Author: Benhar, O., Pandharipande, V. R., Sick, I., Benhar, O., Pandharipande, V. R., and Sick, I.
Abstract: We analyze data on deep inelastic scattering of electrons from the proton using ideas from standard many-body theory involving {\em bound} constituents subject to {\em interactions}. This leads us to expect, at large three-momentum transfer ${\bf{q}}$, scaling in terms of the variable $\tilde{y}=\nu-{\bf |q|}$. The response at constant ${\bf |q|}$ scales well in this variable. Interaction effects are manifestly displayed in this approach. They are illustrated in two examples., Comment: 10 pages, 4 figures
Published: 2000
Full Text: View/download PDF

22. Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2

Author: The E143 Collaboration, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chump, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle, J., Maruyama, T., Maruyama, X.K, McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., The E143 Collaboration, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chump, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle, J., Maruyama, T., Maruyama, X.K, McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., and Zimmermann, D.
Abstract: Measurements are reported of the proton and deuteron spin structure functions gp1 and gd1 at beam energies of 29.1, 16.2, and 9.7 GeV, and gp2 and gd2 at a beam energy of 29.1 GeV.
Published: 1998

23. Measurement of the Proton and Deuteron Spin Structure Function g1 in the Resonance Region

Author: Gearhart, R., Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Boasted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C.E., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelson, R.M., Marroncle, J., Maruyama, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B.A., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., Wesselmann, F., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., The E143 Collaboration, Gearhart, R., Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Boasted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C.E., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelson, R.M., Marroncle, J., Maruyama, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B.A., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., Wesselmann, F., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., and The E143 Collaboration
Abstract: The nucleon spin structure functions g1 and g2 have been and continue to be intensively studied via deep- inelastic lepton scattering [1–6]; however, they remain largely undetermined in the resonance region, where the squared invariant mass of the final state W2 is less than 4 GeV2.
Published: 1997

24. Precision measurement of the proton spin structure function g(p1)

Author: Naval Postgraduate School (U.S.), Physics, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., HydeWright, C., Johnson, J.R., Kawall, D.K., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle. J., Maruyama, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., E143 Collaboration, Naval Postgraduate School (U.S.), Physics, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., HydeWright, C., Johnson, J.R., Kawall, D.K., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle. J., Maruyama, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., and E143 Collaboration
Abstract: We have measured the ratio (gi) /F(gi) over the range 0.029 ( x ( 0.8 and 1.3 (Q+/- ( 10 (GeV/c) using deep-inelastic scattering of polarized electrons from polarized ammonia. An evaluation of the integral fo g+/_ (x, Q2) dx at fixed Q2 = 3 (GeV/c)2 yields 0.127 +/- 0.004(stat) +/- 0.010(syst), in agreement with previous experiments, but well below the Ellis-Jaffe sum rule prediction of 0.160 +/- 0.006. In the quark-parton model, this implies Aq = 0.27 +/- 0.10.
Published: 1995

25. Precision measurement of the deuteron spin structure function gd1

Author: Naval Postgraduate School (U.S.), Physics, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, S.G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T., Lombard-Nelsen, R.M., Marroncle, J., Maruyama, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., E143 Collaboration, Naval Postgraduate School (U.S.), Physics, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, S.G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T., Lombard-Nelsen, R.M., Marroncle, J., Maruyama, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., and E143 Collaboration
Abstract: We report on a high-statistics measurement of'. the deuteron spin structure function g(di) at a beam energy of 29 GeV in the kinematic range 0.029 < x < 0.8 and 1 < Q2 < IO (GeV / c) (2) • The integral r(di) = f(1o) g(di) dx evaluated at fixed Q2 = 3 (GeV/c) 2 gives 0.042 ± 0.003(stat) ± 0.004(syst). Combining this result with our earlier measurement of g(di), we find r(pi) - r(nt) = 0.163 ± O.OIO(stat) ± 0.016(syst), which agrees with the prediction of the Bjorken sum rule with O(a(3x)) corrections, r(pi) - r(ni) = 0.171 ± 0.008. We find the quark contribution to the proton helicity to be liq = 0.30 ± 0.06.
Published: 1995

26. Measurements of the Proton and Deuteron Spin Structure Function g2 and Asymmetry A2

Author: Garvey, D., Maruyama, X.K., The E143 Collaboration, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chump, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle, J., Maruyama, T., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., Garvey, D., Maruyama, X.K., The E143 Collaboration, Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bosted, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chump, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Gearhart, R., Gomez, J., Grenier, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle, J., Maruyama, T., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rock, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengos, M., Staley, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., and Zimmermann, D.
Abstract: We have measured proton and deuteron virtual photon-nucleon asymmetries Ap2 and Ad2 and structure functions gp2 and gd2 over the range 0.03
Published: 1995

27. Measurements of the Q2-Dependence of the Proton and Deuteron Spin Structure Functions g1p and g1d

Author: Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bested, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Greniere, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle, J., Maruyarna, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rocka, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengosa, M., Staleye, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmerman, D., Abe, K., Akagi, T., Anthony, P.L., Antonov, R., Arnold, R.G., Averett, T., Band, H.R., Bauer, J.M., Borel, H., Bested, P.E., Breton, V., Button-Shafer, J., Chen, J.P., Chupp, T.E., Clendenin, J., Comptour, C., Coulter, K.P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F.S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R., Gomez, J., Greniere, P., Griffioen, K.A., Hoibraten, S., Hughes, E.W., Hyde-Wright, C., Johnson, J.R., Kawall, D., Klein, A., Kuhn, S.E., Kuriki, M., Lindgren, R., Liu, T.J., Lombard-Nelsen, R.M., Marroncle, J., Maruyarna, T., Maruyama, X.K., McCarthy, J., Meyer, W., Meziani, Z.-E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G.G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L.S., Rocka, S.E., Rondon, O.A., Sick, I., Smith, L.C., Smith, T.B., Spengosa, M., Staleye, F., Steiner, P., St. Lorant, S., Stuart, L.M., Suekane, F., Szalata, Z.M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J.L., Witte, K., Young, C.C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., and Zimmerman, D.
Abstract: The ratio g1/F1 has been measured over the range 0.031 (GeV/c)2. A trend is observed for g1/F1 to decrease at lower Q2. Fits to world data with and without a possible Q2-dependence in g1/F1 are in agreement with the Bjorken sum rule, but Delta_q is substantially less than the quark-parton model expectation.
Published: 1995

28. Precision Measurement of the Proton Spin Structure Function g1p

Author: Naval Postgraduate School (U.S.), E143 Collaboration, Abe, K., Akagi, T., Anthony, P L., Antonov, R D., Arnold, R G., Averett, T., Band, H R., Bauer, J M., Borel, H., Bosted, P E., Breton, V., Button-Shafer, J., Chen, J P., Chupp, T E., Clendenin, J E., Comptour, C., Coulter, K P., Court, G R., Crabb, D., Daoudi, M., Day, D., Dietrich, F S., Dunne, J., Dutz, H., Erbacher, R D., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R A., Gómez, J., Grenier, P., Griffioen, K., Høibraten, S., Hughes, E W., Hyde-Wright, C E., Johnson, J R., Kawall, D., Klein, A., Kuhn, S E., Kuriki, M., Lindgren, R., Liu, T., Lombard-Nelsen, R M., Marroncle, J., Maruyama, T., Maruyama, X K., McCarthy, J., Meyer, W T., Meziani, Z E., Minehart, R C., Mitchell, J., Morgenstern, J., Petratos, G G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B A., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L S., Rock, S E., Rondon-Aramayo, O A., Sick, I., Smith, L C., Smith, T B., Spengos, M., Staley, F., Steiner, P., Saint-Lorant, S J., Stuart, L M., Suekane, F., Szalata, Z M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J L., Witte, K., Young, C C., Youngman, B., Yuta, H., Zapalac, G H., Zihlmann, B., Zimmerman, D., Naval Postgraduate School (U.S.), E143 Collaboration, Abe, K., Akagi, T., Anthony, P L., Antonov, R D., Arnold, R G., Averett, T., Band, H R., Bauer, J M., Borel, H., Bosted, P E., Breton, V., Button-Shafer, J., Chen, J P., Chupp, T E., Clendenin, J E., Comptour, C., Coulter, K P., Court, G R., Crabb, D., Daoudi, M., Day, D., Dietrich, F S., Dunne, J., Dutz, H., Erbacher, R D., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R A., Gómez, J., Grenier, P., Griffioen, K., Høibraten, S., Hughes, E W., Hyde-Wright, C E., Johnson, J R., Kawall, D., Klein, A., Kuhn, S E., Kuriki, M., Lindgren, R., Liu, T., Lombard-Nelsen, R M., Marroncle, J., Maruyama, T., Maruyama, X K., McCarthy, J., Meyer, W T., Meziani, Z E., Minehart, R C., Mitchell, J., Morgenstern, J., Petratos, G G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B A., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L S., Rock, S E., Rondon-Aramayo, O A., Sick, I., Smith, L C., Smith, T B., Spengos, M., Staley, F., Steiner, P., Saint-Lorant, S J., Stuart, L M., Suekane, F., Szalata, Z M., Tang, H., Terrien, Y., Usher, T., Walz, D., White, J L., Witte, K., Young, C C., Youngman, B., Yuta, H., Zapalac, G H., Zihlmann, B., and Zimmerman, D.
Abstract: We have measured the ratio g[sup p][sub 1]/F[sup p][sub 1] over the range 0.029 < x < 0.8 and 1.3 < Q2 < 10 (GeV/c)2 using deep-inelastic scattering of polarized electrons from polarized ammonia. An evaluation of the integral (integral)g[sup p][sub 1](x,Q2)dx at fixed Q2 = 3 (GeV/c)2 yields 0.127 ± 0.004(stat) ± 0.010(syst), in agreement with previous experiments, but well below the Ellis-Jaffe sum rule prediction of 0.160 ± 0.006. In the quark-parton model, this implies Delta q = 0.27 ± 0.10.
Published: 1994

29. Inclusive electron-nucleus scattering at high momentum transfer

Author: Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B.W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Szalata, Z., Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B.W., McKeown, R. D., Milner, R. G., Potterveld, D. H., and Szalata, Z.
Abstract: The response function of nuclei in the quasielastic region at large momentum transfer (q≤10 fm^-1) is measured for a series of nuclei, 4He, 12C, 27Al, 56Fe, and 197Au, up to large values of the Bjorken scaling variables x<2.5.
Published: 1993

30. Inclusive electron-nucleus scattering at high momentum transfer

Author: Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B.W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Szalata, Z., Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B.W., McKeown, R. D., Milner, R. G., Potterveld, D. H., and Szalata, Z.
Abstract: The response function of nuclei in the quasielastic region at large momentum transfer (q≤10 fm^-1) is measured for a series of nuclei, 4He, 12C, 27Al, 56Fe, and 197Au, up to large values of the Bjorken scaling variables x<2.5.
Published: 1993

31. Nuclear structure functions at x > 1

Author: Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Day, D. B., McCarthy, J. S., Meziani, Z., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., Szalata, Z., Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Day, D. B., McCarthy, J. S., Meziani, Z., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., and Szalata, Z.
Abstract: Nuclear structure functions are extracted for high-energy electron scattering from nuclei at large values of the kinematic variable x and Q^2 in the range 1–4 (GeV/c)^2. At the highest Q^2, the data for x>1 begin to display a scaling indicative of local duality.
Published: 1992

32. Nuclear structure functions at x > 1

Author: Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Day, D. B., McCarthy, J. S., Meziani, Z., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., Szalata, Z., Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Day, D. B., McCarthy, J. S., Meziani, Z., Minehart, R., Sealock, R., Thornton, S. T., Jourdan, J., Sick, I., and Szalata, Z.
Abstract: Nuclear structure functions are extracted for high-energy electron scattering from nuclei at large values of the kinematic variable x and Q^2 in the range 1–4 (GeV/c)^2. At the highest Q^2, the data for x>1 begin to display a scaling indicative of local duality.
Published: 1992

33. Nuclear matter response function

Author: Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R. C., Sealock, R. M., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Szalata, Z., Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R. C., Sealock, R. M., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., and Szalata, Z.
Abstract: The response function of nuclear matter is determined from experimental data on inclusive electron scattering from finite nuclei.
Published: 1989

34. Nuclear matter response function

Author: Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R. C., Sealock, R. M., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., Szalata, Z., Day, D. B., McCarthy, J. S., Meziani, Z. E., Minehart, R. C., Sealock, R. M., Thornton, S. T., Jourdan, J., Sick, I., Filippone, B. W., McKeown, R. D., Milner, R. G., Potterveld, D. H., and Szalata, Z.
Abstract: The response function of nuclear matter is determined from experimental data on inclusive electron scattering from finite nuclei.
Published: 1989

35. High Energy Electron Scattering from 6Li

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Li,G. C., Sick,I., Whitney,R. R., Yearian,M. R., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Li,G. C., Sick,I., Whitney,R. R., and Yearian,M. R.
Abstract: Elastic electron scattering cross sections have been measured for 6Li at 500 MeV and values of q sup 2, the momentum transfer squared, up to 13 f(m sup (-2)). Calculations including nucleon-nucleon correlations predict a diffraction minimum beyond the range of previous measurements for 6Li. The results for 6Li do show a diffraction minimum at q sup 2 = 8 f(m sup (-2)); they are also compared with a phase shift calculation using an empirical charge distribution. (Author), Sponsored in part by National Science Foundation, Washington, D. C.
Published: 1970

36. Inelastic Electron Scattering from Several Ca, Ti and Fe-Isotopes.

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J., McCarthy,J. S., Sick,I., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J., McCarthy,J. S., and Sick,I.
Abstract: The differential cross sections for inelastic electron scattering from 40Ca, 42Ca, 44Ca, 46Ti, 48Ti, 50Ti, and 56Fe have been measured. The cross sections for the strangely excited positive 2, negative 3, positive 4, and negative 5 levels have been measured over a range of momentum transfer q of 0.4 - 2.6 (fm sup (-1)). The data have been fitted using two representations for the transition charge, (1) the hydrodynamic liquid drop, and (2) a phenomenological model. (Author), Sponsored in part by National Science Foundation, Washington, D. C.
Published: 1970

37. Nuclear Fermi Momenta from Quasi-Elastic Electron Scattering

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Moniz,E. J., Sick,I., Whitney,R. R., Ficenec,J. R., Hephart,R. D., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Moniz,E. J., Sick,I., Whitney,R. R., Ficenec,J. R., and Hephart,R. D.
Abstract: The cross sections for quasi-elastic electron scattering from nine target nuclei from lithium to lead have been measured for electron incident energy of 500 MeV and scattering angle of 60 degrees. The data are interpreted in terms of a Fermi gas model, yielding the nuclear Fermi momentum as a function of atomic number. The Fermi momentum increases from lithium to calcium and remains roughly constant at about 260 MeV/c from nickel to lead. (Author)
Published: 1971

38. M5 AND HIGHER MAGNETIC MOMENTS IN ELASTIC ELECTRON SCATTERING

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Li,G. C., Sick,I., Welecke,J. D., Walker,G. E., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Li,G. C., Sick,I., Welecke,J. D., and Walker,G. E.
Abstract: Consideration is given to the feasibility of determining the higher nuclear ground state magnetic moments through elastic electron scattering. Theoretical and experimental results are presented for the M5 moment of 27Al and the M9 moment of 209Bi. (Author), Prepared in cooperation with Stanford Univ., Calif., Inst. of Theoretical Physics, Rept. no. ITP-362. Sponsored in part by National Science Foundation.
Published: 1970

39. THE ELECTROMAGNETIC STRUCTURE OF THE HE3 NUCLEUS

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, McCarthy, J. S., Sick, I., Whitney, R. R., Yearian, M. R., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, McCarthy, J. S., Sick, I., Whitney, R. R., and Yearian, M. R.
Abstract: The electromagnetic structure of the He3 nucleus has been investigated by means of high energy electron scattering. A separation of the charge and magnetic form factors has been accomplished. The charge form factor data extend to q squared = 20 fm sup ( -2) and exhibit a diffraction minimum at q squared = 11.6 fm sup ( -2); the magnetic scattering is measured to q squared = 12.5 fm sup ( -2). The results are discussed in terms of models for the charge and magnetic distributions of the nucleuus. (Author)
Published: 1970

40. TRANSITION DENSITY OF THE OCTUPOLE VIBRATION IN 208Pb DETERMINED BY ELECTRON SCATTERING

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J. H., Sick,I., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J. H., and Sick,I.
Abstract: Cross sections for the excitation by electrons of the 3- level at 2.61 MeV in 208Pb have been obtained between .5 1/F and 2.8 1/F momentum transfer. The data at small momentum transfer can be understood in terms of the modified Tassie-model. The data at high momentum transfer, however, indicate that the transition density has a detailed structure. A transition density which fits the data is presented and compared to theoretical predictions. (Author)
Published: 1970

41. ELASTIC ELECTRON SCATTERING FROM 13C

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J., McCarthy,J. S., Sick,I., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J., McCarthy,J. S., and Sick,I.
Abstract: Cross sections for elastic scattering of electrons from the charge and magnetic distribution of 13C have been measured. The data, covering a range of q of 0.4 - 3.4 F sup (-1) are fitted by a phenomenological charge distribution. The difference between 12C and 13C is analyzed in terms of the change in parameters of the Woods-Saxom potential used in a shell model description of the nuclei. (Author), Sponsored in part by National Science Foundation.
Published: 1970

42. EXCITATION OF PARTICLE-HOLE STATES IN 28Si BY INELASTIC ELECTRON SCATTERING AT HIGH MOMENTUM TRANSFER

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Sick,I., Donnelly,T. W. , Jr., Walecka,J. D., Walker,G. E., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Sick,I., Donnelly,T. W. , Jr., Walecka,J. D., and Walker,G. E.
Abstract: The predictions of the particle-hole model for 28Si are compared with experimental results for large-angle high-momentum-transfer inelastic electron scattering. A few high-spin T=1 states are seen to dominate the cross section. (Author), Also available as Rept. no. ITP-364. Sponsored in part by Grant NSF-GP-9498.
Published: 1970

43. CHARGE DISTRIBUTION OF THE EVEN Nd-ISOTOPES

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J. H., McCarthy,H. S., Sick,I., Yearian,M. R., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Heisenberg,J. H., McCarthy,H. S., Sick,I., and Yearian,M. R.
Abstract: High energy electron scattering has been used to deduce the nuclear charge distribution of the isotopes 142, 144, 146, 148, 150Nd. The measured cross sections have been fitted using a two- and a three-parameter Fermi shape. A significant increase of the surface thickness between 142Nd and 150Nd is observed. The data for 142Nd at high momentum transfer can only be fitted by introducing a modification on the charge distribution which is due to shell model effects. (Author)
Published: 1970

44. ELASTIC ELECTRON SCATTERING FROM 12C AND 16O.

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Sick,I., McCarthy,J. S., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Sick,I., and McCarthy,J. S.
Abstract: Electron scattering cross sections for Carbon and Oxygen between q = 1 F to the minus 1 power and 4 F to the minus 1 power are given. The data are analyzed in terms of a phenomenological charge distribution and new information concerning the tail and the center of the charge distribution are obtained. The presence of dispersion effects appears to be necessary to explain the cross sections in the first diffraction minimum. The effect of a finite potential and short range correlations on the form factor are discussed. (Author)
Published: 1969

45. ON THE DESIGN OF NaI(T1) TOTAL ABSORPTION DETECTORS FOR STRONGLY INTERACTING PARTICLES AT GEV ENERGIES

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Hughes,E. B., Hofstadter,R., Lakin,W. L., Sick,I., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Hughes,E. B., Hofstadter,R., Lakin,W. L., and Sick,I.
Abstract: The properties of a large NaI(T1) detector as a total absorption detector for pions at GeV energies are reported. These observations are supplemented by measurements on the three-dimensional distribution of deposited energy in a large absorber of metallic tin by 8 GeV pions. The latter data are compared with existing Monte Carlo calculations of the nucleon-meson cascade and their application to the design of total absorption detectors with large containment factors is discussed. (Author)
Published: 1969

46. ELECTROEXCITATION OF PARTICLE-HOLE STATES IN O16

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Sick,I., Hughes,E. B., Donnelly,T. W., Walecka,J. D., Walker,G. E., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Sick,I., Hughes,E. B., Donnelly,T. W., Walecka,J. D., and Walker,G. E.
Abstract: The paper presents experimental data and theoretical results for electroexcitation of T=1 particle-hole states in 016., Also available as Rept. no. ITP-335.
Published: 1969

47. ELECTRON EXCITATION OF PARTICLE-HOLE STATES IN C(12)

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Donnelly,T. W., Walecka,J. D., Sick,I., Hughes,E. B., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Donnelly,T. W., Walecka,J. D., Sick,I., and Hughes,E. B.
Abstract: Theoretical and experimental results are given for electron excitation of particle-hole states in Carbon 12. (Author), Also published as Rept. no. ITP-303.
Published: 1968

48. A NAI(T1) TOTAL ABSORPTION DETECTOR FOR ELECTRONS AND GAMMA-RAYS AT GEV ENERGIES

Author: STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Hofstadter,R., Hughes,E. B., Lakin,W. L., Sick,I., STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB, Hofstadter,R., Hughes,E. B., Lakin,W. L., and Sick,I.
Abstract: The paper reports a new and successful demonstration of the use of total absorption shower detectors for electrons and gamma-rays in the GeV energy range. Such detectors have the following attractive properties: (a) 100 per cent detection efficiency, (b) good energy resolution and (c) large dynamic range. Moreover, there is virtually no upper limit to the energy detectable by this means because the size of the detector varies only logarithmically with the energy of the incident electron or gamma-ray. (Author)
Published: 1968

49. Improved radiative corrections for (e, e'p) experiments: Beyond the peaking approximation and implications of the soft-photon approximation

Author: Weissbach, F., Hencken, K., Rohe, D., Sick, I., Trautmann, D., Weissbach, F., Hencken, K., Rohe, D., Sick, I., and Trautmann, D.
Abstract: Analyzing (e, e'p) experimental data involves corrections for radiative effects which change the interaction kinematics and which have to be carefully considered in order to obtain the desired accuracy. Missing momentum and energy due to bremsstrahlung have so far often been incorporated into the simulations and the experimental analyses using the peaking approximation. It assumes that all bremsstrahlung is emitted in the direction of the radiating particle. In this article we introduce a full angular Monte Carlo simulation method which overcomes this approximation. As a test, the angular distribution of the bremsstrahlung photons is reconstructed from H(e, e'p) data. Its width is found to be underestimated by the peaking approximation and described much better by the approach developed in this work. The impact of the soft-photon approximation on the photon angular distribution is found to be minor as compared to the impact of the peaking approximation

50. Measurement of the asymmetries in 3$ \overrightarrow{\sf He}$(¯e, e′p)d and 3$ \overrightarrow{\sf He}$(¯e, e′p)np

Author: Achenbach, P., Baumann, D., Böhm, R., Boillat, B., Bosnar, D., Carasco, C., Ding, M., Distler, M., Friedrich, J., Glöckle, W., Golak, J., Goussev, Y., Grabmayr, P., Heil, W., Hügli, A., Jennewein, P., Jover Ma nas, G., Jourdan, J., Kamada, H., Klechneva, T., Krusche, B., Krygier, K., Llongo, J., Lloyd, M., Makek, M., Merkel, H., Micheli, C., Müller, U., Nogga, A., Neuhausen, R., Normand, Ch, Nungesser, L., Ott, A., Otten, E., Parpan, F., Pérez Benito, R., Potokar, M., Rohe, D., Rudersdorf, D., Schmiedeskamp, J., Seimetz, M., Sick, I., Širca, S., Skibiński, R., Stave, S., Testa, G., Trojer, R., Walcher, Th, Weis, M., Witała, H., Wöhrle, H., Achenbach, P., Baumann, D., Böhm, R., Boillat, B., Bosnar, D., Carasco, C., Ding, M., Distler, M., Friedrich, J., Glöckle, W., Golak, J., Goussev, Y., Grabmayr, P., Heil, W., Hügli, A., Jennewein, P., Jover Ma nas, G., Jourdan, J., Kamada, H., Klechneva, T., Krusche, B., Krygier, K., Llongo, J., Lloyd, M., Makek, M., Merkel, H., Micheli, C., Müller, U., Nogga, A., Neuhausen, R., Normand, Ch, Nungesser, L., Ott, A., Otten, E., Parpan, F., Pérez Benito, R., Potokar, M., Rohe, D., Rudersdorf, D., Schmiedeskamp, J., Seimetz, M., Sick, I., Širca, S., Skibiński, R., Stave, S., Testa, G., Trojer, R., Walcher, Th, Weis, M., Witała, H., and Wöhrle, H.
Abstract: The electron target asymmetries A || and A⊥ with target spin parallel and perpendicular to the momentum transfer $\ensuremath{\boldsymbol{q}}$ were measured for both the two- and three-body breakup of 3He in the 3 $ \overrightarrow{\rm He}$ (¯e, e'p)-reaction. Polarized electrons were scattered off polarized 3He in the quasielastic regime in parallel kinematics with the scattered electron and the knocked-out proton detected using the Three-Spectrometer Facility at MAMI. The results are compared to Faddeev calculations which take into account Final-State Interactions as well as Meson Exchange Currents. The experiment confirms the prediction of a large effect of Final-State Interactions in the asymmetry of the three-body breakup and of an almost negligible one for the two-body breakup

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Publication Year Range

Publication Type

Database

Publisher

50 results on '"Sick, I."'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources