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1. 3He spin-dependent cross sections and sum rules

Author

M. Liang, E. Goldberg, W. Glöckle, A. V. Glamazdin, Z. Chai, D. S. Brown, A. Gasparian, K. Kramer, G. G. Petratos, Z. E. Meziani, Ronald Ransome, R. Skibiński, D. Rowntree, B. Humensky, Koji Takahashi, Seonho Choi, H. Fonvieille, E. W. Hughes, H. Voskanian, E. J. Brash, L. B. Auerbach, R. Michaels, I. K. Kominis, J. P. Chen, S. Malov, E. Burtin, M. Finn, G. Jones, Andreas Nogga, Hiroyuki Kamada, J. Gomez, S. Scopetta, S. Jensen, J. R. Calarco, Paul Souder, G. M. Urciuoli, Henryk Witała, Nilanga Liyanage, R. DiSalvo, D. Pripstein, M. Rvachev, C. E. Jones, Shalev Gilad, S. Strauch, C. W. de Jager, Kevin Fissum, Ronald Gilman, K. McCormick, J. C. Yang, T. Averett, Wolfgang Korsch, R. Suleiman, Bogdan Wojtsekhowski, T. Black, B. Bertozzi, R. L.J. van der Meer, S. Frullani, B. Hersman, G. M. Huber, F. Garibaldi, J. J. LeRose, D. Prout, P. A. Zolnierczuk, R. Holmes, Z. Papandreou, F. Sabatié, X. Jiang, V. Gorbenko, M. K. Jones, Mauro Iodice, A. Saha, A. Ketikyan, S. Teijiro, G. Salme, Charles Glashausser, T. Saito, Haiyan Gao, M. Amarian, C. Jutier, J. Berthot, Y. Roblin, T. Pavlin, Hiroshi Ueno, Jiansong Gao, G. Laveissière, M. Kuss, K. S. Kumar, Gordon D. Cates, E. Lakuriqi, E. Cisbani, F. Xiong, A. Deur, R. D. McKeown, John C. Mitchell, Jacek Golak, J. Marroncle, E. Pace, C. Ciofi degli Atti, G. Kumbartzki, G. J. Lolos, E. Chudakov, J. O. Hansen, P. Djawotho, Karl Slifer, P.Y. Bertin, W. Xu, Sebastien Incerti, P. Vernin, Baile Zhang, L. Todor, Sonja Dieterich, Hiroaki Tsubota, Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), E94010, and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear reaction, nuclear spin, sum rules, polarisation in nuclear reactions and scattering, Nuclear Theory, General Physics and Astronomy, FOS: Physical sciences, Impulse (physics), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Settore FIS/04 - Fisica Nucleare e Subnucleare, nuclear structure theory, Helium-3, 0103 physical sciences, ddc:550, electron-nucleus scattering, Nuclear Experiment (nucl-ex), 010306 general physics, Spin (physics), Nuclear Experiment, Physics, Magnetic moment, 010308 nuclear & particles physics, nuclear resonances, Nuclear structure, Three-body problem, structure functions, High Energy Physics::Experiment, Atomic physics, nulei with mass number 1 to 5, Nucleon
Abstract

We present a measurement of the spin-dependent cross sections for the \vec{^3He}(\vec{e},e')X} reaction in the quasielastic and resonance regions at four-momentum transfer 0.1 < Q^2< 0.9 GeV^2. The spin-structure functions have been extracted and used to evaluate the nuclear Burkhardt--Cottingham and extended GDH sum rules for the first time. Impulse approximation and exact three-body Faddeev calculations are also compared to the data in the quasielastic region., Final version

Published
2008
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2. Measurement of the Generalized Forward Spin Polarizabilities of the Neutron

Author

G. G. Petratos, Arijit Saha, Z. E. Meziani, John C. Mitchell, W. Xu, M. Liang, Gordon D. Cates, T. Black, E. Lakuriqi, E. J. Brash, C. E. Jones, J. M. Finn, R. Holmes, T. Averett, Shalev Gilad, Baile Zhang, T. Saito, C. W. de Jager, S. Strauch, A. Deur, J. R. Calarco, B. Humensky, Seonho Choi, R. D. McKeown, H. Voskanian, F. Garibaldi, J. O. Hansen, Hiroshi Ueno, I. K. Kominis, L. Todor, Hiroaki Tsubota, D. S. Brown, Y. Roblin, X. Jiang, G. J. Lolos, P. Djawotho, Sonja Dieterich, A. Gasparian, G. J. Kumbartzki, Karl Slifer, A. Ketikyan, J. Berthot, Ronald Gilman, J. C. Yang, S. Malov, E. Burtin, Paul Souder, S. Jensen, Sebastien Incerti, G. Laveissière, G. Jones, Jiansong Gao, Bogdan Wojtsekhowski, Charles Glashausser, L. B. Auerbach, P.Y. Bertin, K. McCormick, S. Frullani, B. Hersman, D. Pripstein, J. J. LeRose, P. Vernin, H. Fonvieille, V. Gorbenko, Jian-Ping Chen, E. W. Hughes, Wolfgang Korsch, S. Teijiro, G. M. Huber, C. Jutier, M. K. Jones, Haiyan Gao, K. Kramer, J. Marroncle, David L. Prout, Nilanga Liyanage, F. Sabatié, R. Michaels, R. L.J. van der Meer, M. Rvachev, A. V. Glamazdin, Z. Chai, M. Kuss, R. DiSalvo, E. Chudakov, Kevin Fissum, R. Suleiman, E. Cisbani, P. A. Zolnierczuk, J. Gomez, M. Amarian, F. Xiong, Ronald Ransome, D. Rowntree, Koji Takahashi, Z. Papandreou, T. Pavlin, K. S. Kumar, Mauro Iodice, G. M. Urciuoli, William Bertozzi, E. Goldberg, Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and E94010

Subjects
Quantum chromodynamics, Physics, Chiral perturbation theory, Spin polarization, 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, High Energy Physics - Experiment, Baryon, Polarizability, Quantum mechanics, Quantum electrodynamics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Perturbation theory, 010306 general physics, Nucleon, Nuclear Experiment, Spin-½
Abstract

The generalized forward spin polarizabilities $\gamma_0$ and $\delta_{LT}$ of the neutron have been extracted for the first time in a $Q^2$ range from 0.1 to 0.9 GeV$^2$. Since $\gamma_0$ is sensitive to nucleon resonances and $\delta_{LT}$ is insensitive to the $\Delta$ resonance, it is expected that the pair of forward spin polarizabilities should provide benchmark tests of the current understanding of the chiral dynamics of QCD. The new results on $\delta_{LT}$ show significant disagreement with Chiral Perturbation Theory calculations, while the data for $\gamma_0$ at low $Q^2$ are in good agreement with a next-to-lead order Relativistic Baryon Chiral Perturbation theory calculation. The data show good agreement with the phenomenological MAID model., Comment: 5 pages, 2 figures, corrected typo in author name, published in PRL

Published
2004
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3. Q2Evolution of the Generalized Gerasimov-Drell-Hearn Integral for the Neutron using aH3eTarget

Author

Bogdan Wojtsekhowski, J. J. LeRose, V. Gorbenko, A. Saha, X. Jiang, E. Cisbani, Ronald Ransome, D. Rowntree, P. Djawotho, J. P. Chen, C. Glashausser, Gordon D. Cates, Karl Slifer, E. Lakuriqi, T. Averett, Paul Souder, G. M. Urciuoli, J. Berthot, E. J. Brash, Hiroshi Ueno, A. Ketikyan, S. Teijiro, T. Pavlin, F. Sabatié, Kevin Fissum, Jiansong Gao, K. S. Kumar, M. Amarian, F. Xiong, Nilanga Liyanage, G. Jones, C. E. Jones, M. Liang, R. DiSalvo, R. Suleiman, P. A. Zolnierczuk, A. V. Glamazdin, Z. Chai, Haiyan Gao, D. Pripstein, E. Chudakov, C. Jutier, R. Michaels, M. K. Jones, J. O. Hansen, S. Malov, P.Y. Bertin, M. Finn, S. Frullani, E. Burtin, J. Gomez, J. R. Calarco, David L. Prout, R. L.J. van der Meer, S. Jensen, Z. Papandreou, D. S. Brown, G. J. Lolos, M. Kuss, Mauro Iodice, M. Rvachev, K. Takahashi, William Bertozzi, A. Gasparian, H. Voskanian, G. M. Huber, F. Garibaldi, Sebastien Incerti, E. Goldberg, I. K. Kominis, Seonho Choi, S. Strauch, Shalev Gilad, L. B. Auerbach, C. W. de Jager, P. Vernin, Ronald Gilman, K. McCormick, Hiroaki Tsubota, H. Fonvieille, E. W. Hughes, Wolfgang Korsch, T. B. Humensky, W. Xu, Baile Zhang, A. Deur, R. D. McKeown, L. Todor, G. G. Petratos, Z. E. Meziani, T. Saito, Sonja Dieterich, K. Kramer, Y. Roblin, F. W. Hersman, J. Marroncle, John C. Mitchell, G. J. Kumbartzki, G. Laveissière, T. Black, R. Holmes, and J. C. Yang

Subjects
Physics, Range (particle radiation), Cross section.transverse, Particle physics, 010308 nuclear & particles physics, Scattering, Nuclear Theory, General Physics and Astronomy, Virtual particle, Electron, 01 natural sciences, Resonance (particle physics), Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Neutron, Nuclear Experiment, 010306 general physics, Nucleon
Abstract

We present data on the inclusive scattering of polarized electrons from a polarized ^3He target at energies from 0.862 to 5.06 GeV, obtained at a scattering angle of 15.5°. Our data include measurements from the quasielastic peak, through the nucleon resonance region, and beyond, and were used to determine the virtual photon cross-section difference σ_(1/2)-σ_(3/2). We extract the extended Gerasimov-Drell-Hearn integral for the neutron in the range of four-momentum transfer squared Q^2 of 0.1–0.9 GeV^2.

Published
2002
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4. 3He spin-dependent cross sections and sum rules.

Author

Slifer K, Amarian M, Auerbach L, Averett T, Berthot J, Bertin P, Bertozzi B, Black T, Brash E, Brown D, Burtin E, Calarco J, Cates G, Chai Z, Chen JP, Choi S, Chudakov E, Ciofi Degli Atti C, Cisbani E, de Jager CW, Deur A, DiSalvo R, Dieterich S, Djawotho P, Finn M, Fissum K, Fonvieille H, Frullani S, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Glöckle W, Golak J, Goldberg E, Gomez J, Gorbenko V, Hansen JO, Hersman B, Holmes R, Huber GM, Hughes E, Humensky B, Incerti S, Iodice M, Jensen S, Jiang X, Jones C, Jones G, Jones M, Jutier C, Kamada H, Ketikyan A, Kominis I, Korsch W, Kramer K, Kumar K, Kumbartzki G, Kuss M, Lakuriqi E, Laveissiere G, Lerose JJ, Liang M, Liyanage N, Lolos G, Malov S, Marroncle J, McCormick K, McKeown RD, Meziani ZE, Michaels R, Mitchell J, Nogga A, Pace E, Papandreou Z, Pavlin T, Petratos GG, Pripstein D, Prout D, Ransome R, Roblin Y, Rowntree D, Rvachev M, Sabatié F, Saha A, Salmè G, Scopetta S, Skibiński R, Souder P, Saito T, Strauch S, Suleiman R, Takahashi K, Teijiro S, Todor L, Tsubota H, Ueno H, Urciuoli G, Van der Meer R, Vernin P, Voskanian H, Witała H, Wojtsekhowski B, Xiong F, Xu W, Yang JC, Zhang B, and Zolnierczuk P

Abstract

We present a measurement of the spin-dependent cross sections for the 3He over -->(e over -->,e')X reaction in the quasielastic and resonance regions at a four-momentum transfer 0.1< or =Q2< or =0.9 GeV2. The spin-structure functions have been extracted and used to evaluate the nuclear Burkhardt-Cottingham and extended Gerasimov-Drell-Hearn sum rules for the first time. The data are also compared to an impulse approximation calculation and an exact three-body Faddeev calculation in the quasielastic region.

Published
2008
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5. Measurement of the generalized forward spin polarizabilities of the neutron.

Author

Amarian M, Auerbach L, Averett T, Berthot J, Bertin P, Bertozzi W, Black T, Brash E, Brown D, Burtin E, Calarco J, Cates G, Chai Z, Chen JP, Choi S, Chudakov E, Cisbani E, de Jager CW, Deur A, DiSalvo R, Dieterich S, Djawotho P, Finn JM, Fissum K, Fonvieille H, Frullani S, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Goldberg E, Gomez J, Gorbenko V, Hansen JO, Hersman B, Holmes R, Huber GM, Hughes E, Humensky B, Incerti S, Iodice M, Jensen S, Jiang X, Jones C, Jones G, Jones M, Jutier C, Ketikyan A, Kominis I, Korsch W, Kramer K, Kumar K, Kumbartzki G, Kuss M, Lakuriqi E, Laveissiere G, Lerose J, Liang M, Liyanage N, Lolos G, Malov S, Marroncle J, McCormick K, McKeown R, Meziani ZE, Michaels R, Mitchell J, Papandreou Z, Pavlin T, Petratos GG, Pripstein D, Prout D, Ransome R, Roblin Y, Rowntree D, Rvachev M, Sabatie F, Saha A, Slifer K, Souder P, Saito T, Strauch S, Suleiman R, Takahashi K, Teijiro S, Todor L, Tsubota H, Ueno H, Urciuoli G, Van der Meer R, Vernin P, Voskanian H, Wojtsekhowski B, Xiong F, Xu W, Yang JC, Zhang B, and Zołnierczuk PA

Abstract

The generalized forward spin polarizabilities gamma(0) and delta(LT) of the neutron have been extracted for the first time in a Q2 range from 0.1 to 0.9 GeV2. Since gamma(0) is sensitive to nucleon resonances and delta(LT) is insensitive to the Delta resonance, it is expected that the pair of forward spin polarizabilities should provide benchmark tests of the current understanding of the chiral dynamics of QCD. The new results on delta(LT) show significant disagreement with chiral perturbation theory calculations, while the data for gamma(0) at low Q2 are in good agreement with a next-to-leading-order relativistic baryon chiral perturbation theory calculation. The data show good agreement with the phenomenological MAID model.

Published
2004
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6. Q2 evolution of the neutron spin structure moments using a 3He target.

Author

Amarian M, Auerbach L, Averett T, Berthot J, Bertin P, Bertozzi B, Black T, Brash E, Brown D, Burtin E, Calarco J, Cates G, Chai Z, Chen JP, Choi S, Chudakov E, Cisbani E, De Jager CW, Deur A, DiSalvo R, Dieterich S, Djawotho P, Finn M, Fissum K, Fonvieille H, Frullani S, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Goldberg E, Gomez J, Gorbenko V, Hansen JO, Hersman B, Holmes R, Huber GM, Hughes E, Humensky B, Incerti S, Iodice M, Jensen S, Jiang X, Jones C, Jones G, Jones M, Jutier C, Ketikyan A, Kominis I, Korsch W, Kramer K, Kumar K, Kumbartzki G, Kuss M, Lakuriqi E, Laveissiere G, Lerose J, Liang M, Liyanage N, Lolos G, Malov S, Marroncle J, McCormick K, McKeown R, Meziani ZE, Michaels R, Mitchell J, Papandreou Z, Pavlin T, Petratos GG, Pripstein D, Prout D, Ransome R, Roblin Y, Rowntree D, Rvachev M, Sabatie F, Saha A, Slifer K, Souder P, Saito T, Strauch S, Suleiman R, Takahashi K, Teijiro S, Todor L, Tsubota H, Ueno H, Urciuoli G, Van Der Meer R, Vernin P, Voskanian H, Wojtsekhowski B, Xiong F, Xu W, Yang JC, Zhang B, and Zolnierczuk P

Abstract

We have measured the spin structure functions g(1) and g(2) of 3He in a double-spin experiment by inclusively scattering polarized electrons at energies ranging from 0.862 to 5.058 GeV off a polarized 3He target at a 15.5 degrees scattering angle. Excitation energies covered the resonance and the onset of the deep inelastic regions. We have determined for the first time the Q2 evolution of Gamma(1)(Q2)= integral (1)(0)g(1)(x,Q2)dx, Gamma(2)(Q2)= integral (1)(0)g(2)(x,Q2)dx, and d(2)(Q2)= integral (1)(0)x(2)[2g(1)(x,Q2)+3g(2)(x,Q2)]dx for the neutron in the range 0.1< or =Q2< or =0.9 GeV2 with good precision. Gamma(1)(Q2) displays a smooth variation from high to low Q2. The Burkhardt-Cottingham sum rule holds within uncertainties and d(2) is nonzero over the measured range.

Published
2004
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7. Q2 evolution of the generalized Gerasimov-Drell-Hearn integral for the neutron using a 3He target.

Author

Amarian M, Auerbach L, Averett T, Berthot J, Bertin P, Bertozzi W, Black T, Brash E, Brown D, Burtin E, Calarco JR, Cates GD, Chai Z, Chen JP, Choi S, Chudakov E, Cisbani E, De Jager CW, Deur A, DiSalvo R, Dieterich S, Djawotho P, Finn M, Fissum K, Fonvieille H, Frullani S, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Goldberg E, Gomez J, Gorbenko V, Hansen JO, Hersman FW, Holmes R, Huber GM, Hughes EW, Humensky TB, Incerti S, Iodice M, Jensen S, Jiang X, Jones C, Jones GM, Jones M, Jutier C, Ketikyan A, Kominis I, Korsch W, Kramer K, Kumar KS, Kumbartzki G, Kuss M, Lakuriqi E, Laveissiere G, Lerose J, Liang M, Liyanage N, Lolos G, Malov S, Marroncle J, McCormick K, McKeown R, Meziani ZE, Michaels R, Mitchell J, Papandreou Z, Pavlin T, Petratos GG, Pripstein D, Prout D, Ransome R, Roblin Y, Rowntree D, Rvachev M, Sabatie F, Saha A, Slifer K, Souder PA, Saito T, Strauch S, Suleiman R, Takahashi K, Teijiro S, Todor L, Tsubota H, Ueno H, Urciuoli G, Van Der Meer R, Vernin P, Voskanian H, Wojtsekhowski B, Xiong F, Xu W, Yang JC, Zhang B, and Zolnierczuk P

Abstract

We present data on the inclusive scattering of polarized electrons from a polarized 3He target at energies from 0.862 to 5.06 GeV, obtained at a scattering angle of 15.5 degrees. Our data include measurements from the quasielastic peak, through the nucleon resonance region, and beyond, and were used to determine the virtual photon cross-section difference sigma(1/2)-sigma(3/2). We extract the extended Gerasimov-Drell-Hearn integral for the neutron in the range of four-momentum transfer squared Q2 of 0.1-0.9 GeV2.

Published
2002
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