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1. Next-to-leading order QCD analysis of polarized deep inelastic scattering data

Author

Abe, K., Akagi, T., Anderson, B. D., Anthony, P. L., Arnold, R. G., Averett, T., Band, H. R., Berisso, C. M., Bogorad, P., Borel, H., Bosted, P. E., Breton, V., Buenerd, M. J., Cates, G. D., Chupp, T. E., Churchwell, S., Coulter, K. P., Daoudi, M., Decowski, P., Erickson, R., Fellbaum, J. N., Fonvieille, H., Gearhart, R., Ghazikhanian, V., Griffioen, K. A., Hicks, R. S., Holmes, R., Hughes, E. W., Igo, G., Sebastien Incerti, Johnson, J. R., Kahl, W., Khayat, M., Kolomensky, Yu G., Kuhn, S. E., Kumar, K., Kuriki, M., Lombard-Nelsen, R., Manley, D. M., Marroncle, J., Maruyama, T., Marvin, T., Meyer, W., Meziani, Z. -E, Miller, D., Mitchell, G., Olson, M., Peterson, G. A., Petratos, G. G., Pitman, R., Prepost, R., Raines, P., Raue, B. A., Reyna, D., Rochester, L. S., Rock, S. E., Romalis, M. V., Sabatie, F., Shapiro, G., Shaw, J., Smith, T. B., Sorrell, L., Souder, P. A., Staley, F., Lorant, S. St, Stuart, L. M., Suekane, F., Szalata, Z. M., Terrien, Y., Thompson, A. K., Toole, T., Wang, X., Watson, J. W., Welsh, R. C., Wesselmann, F. R., Wright, T., Young, C. C., Youngman, B., Yuta, H., Zhang, W. -M, Zyla, P., 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), E154, and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Quantum chromodynamics, Quark, Nuclear and High Energy Physics, Particle physics, Valence (chemistry), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FOS: Physical sciences, Perturbative QCD, Deep inelastic scattering, 01 natural sciences, Gluon, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutron, Sum rule in quantum mechanics, 010306 general physics
Abstract

We present a Next-to-Leading order perturbative QCD analysis of world data on the spin dependent structure functions $g_1^p, g_1^n$, and $g_1^d$, including the new experimental information on the $Q^2$ dependence of $g_1^n$. Careful attention is paid to the experimental and theoretical uncertainties. The data constrain the first moments of the polarized valence quark distributions, but only qualitatively constrain the polarized sea quark and gluon distributions. The NLO results are used to determine the $Q^2$ dependence of the ratio $g_1/F_1$ and evolve the experimental data to a constant $Q^2 = 5 GeV^2$. We determine the first moments of the polarized structure functions of the proton and neutron and find agreement with the Bjorken sum rule., Comment: 21 pages, 4 figures; final version to be published in Phys. Lett. B. References updated. Uses elsart.cls version 1996/04/22, 2e-1.41

Published
1997
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2. Precision measurement of the proton and deuteron spin structure functions g2 and asymmetries A2

Author

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., and Naval Postgraduate School (U.S.)

Abstract

The article of record as published may be found at https://doi.org/10.1016/S0370-2693(02)03015-0 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

3. Measurements of R = σL/σT for 0.03 < x < 0.1 and Fit to World Data

Author

Staley, F., Arnold, R.G., Zimmermann, D., Fonvieille, H., Fellbaum, J., Smith, L.C., St.Lorant, S., Frlez, E., Button-Shafer, J., Coulter, K.P., Rochester, L.S., Minehart, R., Petratos, G.G., Marroncle, J., Morgenstern, J., Griffioen, K.A., Bosted, P.E., Grenier, P., Steiner, P., Maruyama, T., Usher, T., Zapalac, G., Dunne, J., Anthony, P.L., Lindgren, R., Akagi, T., Szalata, Z.M., Prescott, C., Garvey, D., Dietrich, F.S., Sick, I., Mitchell, J., Chen, J.P., Daoudi, M., Lombard-Nelsen, R.M., Smith, T.B., Liu, T.J., Meyer, W., Court, G., Clendenin, J., Spengos, M., Hoibraten, S., Zihlmann, B., Kawall, D., Bauer, J.M., McCarthy, J., Raines, P., Gearhart, R., White, J.L., Johnson, J.R., Kuriki, M., Kuhn, S.E., Feltham, A., Klein, A., Rijllart, A., Raue, B., Youngman, B., Young, C.C., Comptour, C., Hyde-Wright, C., Crabb, D., Day, D., Pocanic, D., Reyna, D., Walz, D., Hughes, E.W., Suekane, F., Wesselmann, F., Borel, H., Dutz, H., Band, H.R., Tang, H., Yuta, H., Gomez, J., Abe, K., Witte, K., Stuart, L.M., Rondon, O.A., Antonov, R., Erbacher, R., Pitthan, R., Prepost, R., Rock, S.E., Averett, T., Chupp, T.E., Breton, E.V., Maruyama, X.K., Roblin, Y., Terrien, Y., Meziani, Z.-E., and Naval Postgraduate School (U.S.)

Abstract

Measurements were made at SLAC of the cross section for scattering 29 GeV electrons from carbon at a laboratory angle of 4.58, corresponding to 0.03-x-0.1 and 1.3-Q2-2.7 GeV2. Values of RssLrsT were extracted in this kinematic range by comparing these data to cross sections measured at a higher beam energy by the NMC collaboration. The results are in reasonable agreement with pQCD calculations and with extrapolations of the R1990 parameterization of previous data. A new fit is made including these data and other recent results. q1999 Published by Elsevier Science B.V. All rights reserved. This work was supported by Department of Energy contracts: No. W-2705-Eng-48 ŽLLNL., No. DE-AC03-76SF00515 ŽSLAC., No. DE-FG03- 88ER40439 ŽStanford., Nos. DE-FG05-88ER40390 and DEFG05-86ER40261 ŽVirginia., and No. DE- AC02-76ER00881 ŽWisconsin.; by National Science Foundation Grants No. 9114958 ŽAmerican., No. 9307710 ŽMassachusetts., No. 9217979 ŽMichigan., and No. 9104975 ŽODU.; by the Schweizerische Nationalfonds ŽBasel.; by the Commonwealth of Virginia; and by the Ministry of Science, Culture and Education of Japan ŽTohoku.. This work was supported by Department of Energy contracts: No. W-2705-Eng-48 LLNL., No. DE-AC03-76SF00515 ŽSLAC., No. DE-FG03- 88ER40439 Stanford., Nos. DE-FG05-88ER40390 and DEFG05-86ER40261 Virginia., and No. DE- AC02-76ER00881 Wisconsin.; by National Science Foundation Grants No. 9114958 American., No. 9307710 Massachusetts., No. 9217979 Michigan., and No. 9104975 ŽODU.; by the Schweizerische Nationalfonds ŽBasel.; by the Commonwealth of Virginia; and by the Ministry of Science, Culture and Education of Japan Tohoku..

Published
1999

4. 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., and Zimmermann, D.

Abstract

SLAC-PUB-7753, February 1998 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. Work supported in part by Department of Energy contract DE-AC03-76SF00515.

Published
1998

5. 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., and The E143 Collaboration

Subjects
High Energy Physics::Experiment
Abstract

(Accepted in Phys. Rev. Lett.) 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

6. 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., 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

7. 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., and Zimmermann, D.

Abstract

Submitted to Physical Review Letters. The article of record may be found at http://dx.doi.org/10.1103/PhysRevLett.76.587. 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

8. Precision measurement of the deuteron spin structure function gd1

Author

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.), and Physics

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. This work was supported by Department of Energy Contracts No. DE-AC05-84ER40150 (CEBAF), No. W-2795-Eng-48 (LLNL), No. DE-AC0376SF00515 (SLAC), No. DE-FG03-88ER40439 (Stanford), No. DE-FG05-88ER40390 and No. DEFG05-86ER4026 (Virginia), and No. DE-AC02-76ER00881 (Wisconsin); by National Science Foundation Grants No. 9114958 (American), No. 9307710 (Massachusetts), No. 9217979 (Michigan), No. 9104975 (ODU) and No. 9118137 (U. Penn.); by the Schweizersche Nationalfonds (Basel); by the Commonwealth of Virginia (Virginia); by the Centre NAtional de la Recherche Scientifique and the Commissariat a l'Energie Atomique (French groups); and by the Japanese Ministry of Education, Science and Culture (Tohoku).

Published
1995

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

Author

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.), and Physics

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. This work was supported by Department of Energy Contracts No. DE-AC05-84ER40150 (CEBAF), No. W-2795-Eng-48 (LLNL), No. DE-AC0376SF00515 (SLAC), No. DE-FG03-88ER40439 (Stanford), No. DE-FG05-88ER40390 and No. DEFG05-86ER4026 (Virginia), and No. DE-AC02-76ER00881 (Wisconsin); by National Science Foundation Grants No. 9114958 (American), No. 9307710 (Massachusetts), No. 9217979 (Michigan), No. 9104975 (ODU) and No. 9118137 (U. Penn.); by the Schweizersche Nationalfonds (Basel); by the Commonwealth of Virginia (Virginia); by the Centre NAtional de la Recherche Scientifique and the Commissariat a l'Energie Atomique (French groups); and by the Japanese Ministry of Education, Science and Culture (Tohoku).

Published
1995

10. Precision Measurement of the Proton Spin Structure Function g1p

Author

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., and Naval Postgraduate School (U.S.)

Abstract

The article of record may be found at https://doi.org/10.1103/PhysRevLett.74.346 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

11. Generation of hard x rays from transition radiation using high-density foils and moderate-energy electrons

Author

Piestrup, M.A., Moran, M. J., Boyers, D.G., Pincus, C. I., Kephart, J. O., Gearhart, R. A., Maruyama, X.K., Naval Postgraduate School (U.S.), and Physics

Abstract

In experiments using target consisting of many thin metal foils, we have demonstrated that a narrow, forward-directed cone of transition radiation in the 8- to 60-keV spectral range can be generated by electrons beams with moderate energies (between 100 and 500 MeV). The theory suggests that high-density, moderate-atomic-number metals are the optimum foil materials and that the foil thickness can be chosen to maximize photon production within a desired spectral range. The three targets in the experiments consisted of 10 foils of 1-um-thick gold, 40 foils of 8.5-um stainless steel, and 20 foils of 7.9-um copper. The efficiency with which hard x rays are generated, and the fact that the requisite electron-beam energies are lower by a factor of 5 to 10, make such a radiation source an attractive alternative to synchrotron radiation for applications such as medical imaging, spectroscopy, and microscopy. This work was financed by the National Science Foundation of the Small Business Innovative Research (SBIR) program, Grant No. PHY-8460914 This work was financed by the National Science Foundation of the Small Business Innovative Research (SBIR) program, Grant No. PHY-8460914

Published
1991

13. Letter of Intent for the Study of CP Violation and Heavy Flavor Physics at PEP-II

Author

Boutigny, D., Goy, C., Karyotakis, Y., Lees, J. P., Lees-Rosier, S., Evangelista, C., Palano, A., Chen, G., Wang, Y. T., Wen, O., Guo, Y. N., Lan, H. B., Mao, H. S., Qi, N. D., Yan, W. G., Zhang, C. C., Zhao, W. R., Zhu, Y. S., Hearty, C., Heise, J., Mckenna, J., Mckemey, A. K., Achasov, M. N., Bechasnov, P. M., Bozhenok, A. V., Buzykaev, A. Kh, Cherepanov, K. G., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Golubev, V. N., Groshev, V. R., Ivanchenko, V. N., Kolachev, G. M., Klimenko, S. G., Maslennikov, A. L., Onuchin, A. P., Panin, V. S., Peleganchuk, S. V., Pivovarov, S. G., Salnikov, A. A., Serednyakov, S. I., Shamov, A. G., Sidorov, V. A., Skovpen, Yu I., Tayursky, V. A., Telnov, Valery I., Tepligin, V. I., Undrus, Alexander E., Usov, Yu V., Yurchenko, V. I., Eigen, G., Hitlin, D. G., Oyang, J., Porter, F. C., Shi, X., Weinstein, A. J., Rouse, F., Eisner, A. M., Sullivan, M., Vernon, W., Wang, Y. X., Gollwitzer, K., Lankford, A., Mandelkern, M., Mcgrath, G., Schmid, B., Schultz, J., Stoker, D., Zioulas, G., Arisaka, K., Buchanan, C., Slater, W., Park, J., Bauer, Daniel A., Caldwell, David O., Lu, A., Nelson, H., Richman, J., Roberts, D., Witherell, Michael S., Yellin, S., Burchat, P., Dorfan, D., Grillo, A., Heusch, C., Johnson, R., Lockman, William S., O Shaughnessy, K., Sadrozinski, H., Seiden, A., Edwards, K., Karlen, D., O Neill, M., Meadows, B., Santha, A., Sokoloff, M., Erdos, E., Ford, W., Nauenberg, U., Rankin, P., Smith, J., Malchow, R., Smy, M., Staengle, H., Toki, W., Warner, D., Wilson, R., Eckstein, P., Schubert, Klaus R., Schwierz, R., Waldi, R., Bannikov, A., Chelkov, G., Gornushkin, Yu, Ignatenko, M., Krumshtein, Z., Nozdrin, A., Rusakovich, N., Sisakian, A., Silagadze, Z., Vertogradov, L., Yatsunenko, Yu, Peach, K., Walker, A., Piemontese, L., Baldini, R., Calcaterra, A., Sangro, R., Peruzzi, I., Piccolo, M., Zallo, A., Contri, R., Crosetti, G., Fabbricatore, P., Macri, M., Parodi, R., Passaggio, S., Patrignani, C., Pia, M. G., Santroni, A., Squarcia, S., Lau, K., Mayes, B., Mo, G., Pinsky, Lawrence S., Pyrlik, J., Weinstein, R., Mallik, U., Mccliment, E., Wang, M. Z., Crawley, H. B., Firestone, A., Lamsa, J. W., Meyer, W. T., Rosenberg, E. I., Boer, W., Mahlum, G., Weseler, S., Bowdery, C. J., Finch, A., Foster, F., Abrams, G. S., Bingham, H., Ciocio, A., Day, C., Dow, S., Gidal, G., Jared, R., Kadyk, J., Kerth, L., Kral, J. F., Levi, M., Lynch, G. R., Oddone, P., Pripstein, M., Quarrie, D., Rasson, J., Roe, N., Ronan, Michael T., Spieler, H., Wenzel, W., Wunduke, S., Bionta, R. M., Dietrich, F. S., Fackler, O. D., Fuchs, B. A., Kreisler, M. N., Libkind, M. A., Martkovetsky, N., Mauger, G. J., Mugge, M. J., Stoeffl, W., Pedrotti, L., Bibber, K., Wenaus, T. J., Wright, D. M., Wuest, C. R., Yamamoto, R. M., Fry, J. R., Gabathuler, E., Sanders, P., Cattaneo, M., Dornan, P., Nash, J., Postool, A., Price, D., Bugg, D., Harrison, P. F., Zou, B., Gao, Y., Green, M. G., Britton, D., Fernholz, R., Macfarlane, D., Patel, P., Smith, C., Spaan, B., Allison, John, Barlow, Roger J., Lafferty, G., Dallapiccola, C., Jawahery, Abolhassan, Skuja, A., Button-Shafer, Janice, Gomez-Cadenas, J. J., Hertzbach, Stanley S., Kofler, R. R., Strauss, Michael G., Cowan, R. F., Fero, M. J., Yamamoto, R. K., Brown, D., Kroha, H., Lorenz, E., Seywerd, H., Diaferia, R., Palombo, F., Sala, A., Bracker, Stephen B., Cremaldi, L., Gounder, K., Reidy, J., Summers, D., Beaulieu, M., Martin, J. P., Taras, P., Zacek, V., Nicholson, H., Sutton, S., Cavallo, N., Lanzano, S., Sciacca, C., Hou, W. S., Bishop, J., Biswas, N., Cason, N., Losecco, J., Sanjari, A., Shepard, W., Alsmiller, F. S., Alsmiller, R. G., Gabriel, T. A., Heck, J. L., Todd, R. A., Cizeron, R., Lutz, A. M., Schune, M. H., Torassa, E., Wormser, G., Dal Corso, F., Dosselli, U., Posocco, M., Stroili, R., Bonneaud, G., Dieulot, J. M., Vassilliadis, G., Briand, H., Chauveau, J., David, P., La Vaissiere, C., Del Buono, L., Genat, J. F., Hamon, O., Lory, J., Benayoun, Maurice, Leruste, P., Narjoux, J. L., Manfredi, P. F., Re, V., Speziali, V., Gladney, Larry D., Batignani, G., Bosi, F., Bottigli, U., Carpinelli, M., Costantini, F., Forti, F., Giorgi, M., Lusiani, A., Marrocchesi, P. S., Morganti, M., Triggiani, G., Walsh, J., Bula, C., Lu, C., Mcdonald, K. T., Purohit, M. V., Bosio, C., Jacques, P., Kalelkar, M., Plano, R., Staimer, P., Dauncey, Paul D., Franek, B., Geddes, N. I., Gopal, G. P., Aleksan, R., Amadon, A., Besson, P., Bolognese, T., Bourgeois, P., Lesquen, A., Gaidot, A., Gautier Hamel de Monchenault, Jarry, P., London, G., Turluer, M., Vasseur, G., Zito, M., Jing, J. R., Li, P. J., Yan, D. S., Yin, Z. W., Aston, D., Becker-Szendy, R., Bloom, Elliott D., Bowden, G., Boyarski, A., Briggs, D., Bulos, F., Burgess, W., Cords, D., Coward, D., Coupal, D., Craddock, W., Destaebler, H., Dorfan, J. M., Dunwoodie, W., Freytag, D., Gearhart, R., Glanzman, T., Godfrey, G., Haller, G., Hewett, J. L., Himel, T., Hoeflich, J., Innes, Walter R., Jessop, C., Kawahara, H., King, M., Kunz, Paul F., Lee, E., Leith, David W. G. S., Luth, V., Lynch, H., Marsiske, H., Mattison, T., Mcshurley, D., Muller, D., Perl, M., Oxoby, G., Quinn, Helen R., Ratcliff, B., Schaffner, S., Schindler, R., Shapiro, S., Simopoulos, C., Snyder, A., Soderstrom, E., Stiles, P., Tolstykh, A., Va Vra, J., Wagner, S., Wang, R., Wisniewski, William J., Chau, H. Y., Chu, M. L., Lee, S. C., Izen, J. M., Lou, X., Bianchi, P., Gamba, D., Romero, A., Bosisio, L., Henderson, R., Trudel, A., Kuang, Y. P., Shang, R. C., Shao, B. B., Wang, J. J., Panvini, R. S., Sheldon, P., Reeves, T., Goodenough, C., Mcdougald, M., Pitman, D., Band, H. R., Johnson, J. R., Prepost, R., Zapalac, G. H., and Frisken, William R.

14. Measurement of the neutron spin structure function $g_{2}^{n}$ and asymmetry $a_{2}^{n}$

Author

Abe, K., Akagi, T., Anderson, B. D., Anthony, P. L., Arnold, R. G., Averett, T., Band, H. R., Berisso, C. M., Bogorad, P., Borel, H., Bosted, P. E., Vincent Breton, Buenerd, M., Cates, G. D., Chupp, T. E., Churchwell, S., Coulter, K. P., Daoudi, M., Decowski, P., Erickson, R., Fellbaum, J., Fonvieille, H., Gearhart, R., Ghazikhanian, V., Griffioen, K. A., Hicks, R. S., Holmes, R., Hughes, E. W., Igo, G., Incerti, S., Johnson, J. R., Kahl, W., Khayat, M., Kolomensky, Yu G., Kuhn, S. E., Kumar, K., Kuriki, M., Lombard-Nelsen, R. M., Manley, D. M., Marroncle, J., Maruyama, T., Marvin, T., Meyer, W., Meziani, Z. E., Miller, R., Mitchell, G., Olson, M., Peterson, G. A., Petratos, G. G., Pitthan, R., Prepost, R., Raines, P., Raue, B., Reyna, D., Rochester, L., Rock, S. E., Romalis, M. V., Sabatie, F., Shapiro, G., Shaw, J., Smith, T. B., Sorrell, L., Souder, P. A., Staley, F., Stuart, L. M., Suekane, F., Szalata, Z. M., Terrien, Y., Thompson, A. K., Toole, T., Wang, X., Watson, J. W., Welsh, R. C., Wesselmann, F., Wright, T., Young, C., Youngman, B., Yuta, H., Zhang, W. M., Zyla, P., 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), E154, and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)

Subjects
High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics - Experiment
Abstract

We have measured the neutron structure function g$_{2}^{n}$ and the virtual photon-nucleon asymmetry A$_{2}^{n}$ over the kinematic range $0.014\leq x \leq 0.7$ and $1.0 \leq Q^{2} \leq 17.0$ by scattering 48.3 GeV longitudinally polarized electrons from polarized $^{3}$He. Results for A$_{2}^{n}$ are significantly smaller than the $\sqrt{R}$ positivity limit over most of the measured range and data for g$_2^{n}$ are generally consistent with the twist-2 Wandzura-Wilczek prediction. Using our measured g$_{2}^{n}$ we obtain results for the twist-3 reduced matrix element $d_{2}^{n}$, and the integral $\int$g$_{2}^{n}(x)dx$ in the range $0.014\leq x \leq 1.0$. Data from this experiment are combined with existing data for g$_{2}^{n}$ to obtain an average for $d_{2}^{n}$ and the integral $\int$g$_{2}^{n}(x)dx$., Comment: 10 pages, 3 figures. To be published in Physics Letters B

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15. BaBar technical design report

Author

Boutigny, D., Karyotakis, Y., Lees-Rosier, S., Petitpas, P., Evangelista, C., Palano, A., Chen, G., Wang, Y. T., Wen, O., Guo, Y. N., Lan, H. B., Mao, H. S., Qi, N. D., Yan, W. G., Zhang, C. C., Zhao, W. R., Zhu, Y. S., Dyce, N., Foster, B., Gilmore, R. S., Morgado, C. J. S., Eigen, G., Goodenough, C., Hearty, C., Heise, J., Mckenna, J. A., Champion, T., Hasan, A., Mckemey, A. K., Buzykaev, A. R., Golubev, V. N., Ivanchenko, V. N., Klimenko, S. G., Kravchenko, E. A., Kolachev, G. M., Onuchin, A. P., Panin, V. S., Serednyakov, S. I., Shamov, A. G., Skovpen, Ya I., Telnov, Valery I., Hitlin, D. G., Oyang, J., Porter, F. C., Weaver, M., Weinstein, A. J., Zhu, R., Rouse, F., Eisner, A. M., Sullivan, M., Vernon, W., Wang, Y. X., Gollwitzer, K., Lankford, A., Mandelkern, M., Mcgrath, G., Schultz, J., Stoker, D., Zioulas, G., Arisaka, K., Buchanan, C., Kubic, J., Slater, W., Sharma, V., Bauer, Daniel A., Caldwell, David O., Lu, A., Nelson, H., Richman, J., Roberts, D., Witherell, Michael S., Yellin, S., Dewitt, J., Dorfan, D., Grillo, A. A., Heusch, C., Johnson, R. P., Kashigin, E., Kashigin, S., Kroeger, W., Lockman, William S., O Shaughnessy, K., Sadrozinski, H., Seiden, A., Spencer, E., Edwards, K., Karlen, D., O Neill, M., Devmal, S., Meadows, B. T., Santha, A. K. S., Sokoloff, M. D., Barker, A., Broomer, B., Erdos, E., Ford, W., Nauenberg, U., Park, H., Rankin, P., Roy, J., Smith, James G., Harton, John L., Malchow, R., Smy, M., Staengle, H., Toki, W., Warner, D., Wilson, R., Brose, J., Dahlinger, G., Eckstein, P., Schubert, Klaus R., Schwierz, R., Seitz, R., Waldi, R., Bannikov, A., Baranov, S., Boyko, I., Chelkov, G., Dodonov, V., Gornushkin, Yu, Ignatenko, M., Khovansky, N., Krumshtein, Z., Malyshev, V., Nikolenko, M., Nozdrin, A., Sedykh, Yu, Sisakian, A., Silagadze, Z., Tokmenin, V., Yatsunenko, Yu, Peach, K., Walker, A., Piemontese, L., Baldini, R., Calcaterra, A., Sangro, R., Peruzzi, I., Piccolo, M., Zallo, A., Buzzo, A., Contri, R., Crosetti, G., Fabbricatore, P., Farinon, S., Monge, R., Olcese, M., Parodi, R., Passaggio, S., Patrignani, C., Pia, M. G., Salvo, C., Santroni, A., Mallik, U., Mccliment, E., Wang, M. Z., Crawley, H. B., Firestone, A., Lamsa, J. W., Mckay, R., Meyer, W. T., Rosenberg, E. I., Falbo-Kenkel, M., Bowdery, C. K., Finch, A. J., Foster, F., Abrams, G. S., Brown, David Nathan, Collins, T., Day, C. T., Dow, S. F., Goozen, F., Jacobsen, R., Jared, R. C., Kadyk, J., Kerth, L. T., Kipnis, I., Kral, J. F., Lafever, R., Lee, R., Levi, M., Luo, L., Lynch, G. R., Momayezi, M., Nyman, M., Oddone, P. J., Pope, W. L., Pripstein, M., Quarrie, D. R., Rasson, J., Roe, N. A., Ronan, M. T., Wenzel, W. A., Wunduke, S., Alford, O., Berg, J., Bionta, R. M., Brooks, A., Dietrich, F. S., Fackler, O. D., Kreisler, M. N., Libkind, M. A., Mugge, M. J., O Connor, T., Pedrotti, L., Shi, X., Stoeffl, W., Bibber, K., Wenaus, T. J., Wright, D. M., Wuest, C. R., Yamamoto, R. M., Fry, J. R., Gabathuler, E., Gamet, R., Muir, A., Sanders, P., Dornan, P., Duane, A., Moneta, L., Nash, J., Price, D., Bugg, D. V., Harrison, P. F., Scott, I., Zou, B., Gao, Y., Green, M. G., Johnson, D. L., Tetteh-Lartey, E., Davis, C. L., Britton, D., Fernholz, R., Macfarlane, D., Patel, P., Smith, C., Spaan, B., Trischuk, J., Allison, John, Barlow, Roger J., Lafferty, G., Stephens, K., Carlo Dallapiccola, Foucher, M., Jawahery, Abolhassan, Skuja, A., Button-Shafer, Janice, Gomez-Cadenas, J. J., Hertzbach, Stanley S., Kofler, R. R., Strauss, Michael G., Cowan, R. F., Fero, M. J., Yamamoto, R. K., Calvi, M., Cattadori, C., Diaferia, R., Lanni, F., Matteuzzi, C., Palombo, F., Sala, A., Tabarelli, T., Booke, M., Bracker, Stephen B., Cremaldi, L., Gounder, K., Kroeger, R., Reidy, J., Summers, D., Beaudoin, G., Beaulieu, M., Lorazo, B., Martin, J. P., Taras, P., Zacek, V., Nicholson, H., Sutton, C. S., Cavallo, N., Lista, L., Mele, S., Parascandolo, P., Sciacca, C., Bishop, J. M., Biswas, N. N., Cason, N. M., Losecco, J. M., Sanjari, A. H., Shephard, W. D., Alsmiller, F. S., Alsmiller, R. G., Gabriel, T. A., Heck, J. L., Breton, D., Cizeron, R., Du, S., Lutz, A. M., Noppe, J. M., Plaszczynski, S., Schune, M. H., Torassa, E., Truong, K., Wormser, G., Dal Corso, F., Morandin, M., Posocco, M., Stroili, R., Voci, C., Behr, L., Bonneaud, G., Matricon, P., Vasileiadis, G., Verderi, M., Benayoun, Maurice, Briand, H., Chauveau, J., David, P., La Vaissiere, C., Del Buono, L., Genat, J. F., Hamon, O., Leruste, P., Lory, J., Narjoux, J. L., Zhang, B., Manfredi, P. F., Re, V., Speziali, V., Svelto, F., Gladney, Larry D., Batignani, G., Bettarini, S., Bosi, F., Bottigli, U., Carpinelli, M., Costantini, F., Forti, F., Gambino, D., Giorgi, M., Lusiani, A., Marrocchesi, P. S., Morganti, M., Rizzo, G., Triggiani, G., Walsh, J., Gui, M., Judd, D. J., Paick, K., Wagoner, D. E., Bula, C., Lu, C., Mcdonald, K. T., Bosio, C., Ferroni, F., Lamanna, E., Mazzoni, M. A., Morganti, Silvio, Piredda, G., Santacesaria, R., Jacques, P., Kalelkar, M., Plano, R., Stamer, P., Dauncey, Paul D., Dowdell, J., Franek, B., Geddes, N. I., Gopal, G. P., Halsall, R., Lidbury, J. A., Perera, V. J., Aleksan, R., Besson, P., Bolognese, T., Bourgeois, P., Lesquen, A., Gaidot, A., Gosset, L., Hamel Monchenault, G., Jarry, P., London, G., Turluer, M., Vasseur, G., Yeche, C., Zito, M., Jing, J. R., Li, P. J., Yan, D. S., Yin, Z. W., Purohit, M. V., Wilson, J., Aston, D., Becker-Szendy, R., Bell, R., Bloom, Elliott D., Boeheim, C., Boyarski, A., Boyce, R. F., Briggs, D., Bulos, F., Burgess, W., Cottrell, R. L. A., Coward, D. H., Coupal, D. P., Craddock, W., Destaebler, H., Dorfan, J. M., Dunwoodie, W., Fieguth, T., Freytag, D., Gearhart, R., Glanzman, T., Godfrey, G., Haller, G., Hewett, J. L., Himel, T., Hoeflich, J., Innes, Walter R., Jessop, C. P., Johnson, W. B., Kawahara, H., Keller, L., King, M. E., Krebs, J., Kunz, Paul F., Langeveld, Willem Gerhardus Johannes, Lee, E., Leith, David W. G. S., Luth, V. G., Lynch, H., Marsiske, H., Mattison, T., Melen, R., Moffeit, K., Moss, L., Muller, D., Perl, M., Oxoby, G., Pertsova, M., Quinn, Helen R., Ratcliff, B. N., Schaffner, S. F., Schindler, R. H., Shapiro, S., Simopoulos, C., Snyder, A. E., Soderstrom, E. J., Va Vra, J., Wagner, S., Walz, D., Wang, R., White, J. L., Wisniewski, William J., Yu, N., Burchat, P., Zaliznyak, R., Chau, H. Y., Chu, M. L., Lee, S. C., Izen, J. M., Lou, X., Bianchi, F., Gamba, D., Giraudo, G., Romero, A., Bosisio, L., Della Marina, R., Della Ricca, G., Gobbo, B., Lanceri, L., Poropat, P., Henderson, R., Trudel, A., Kuang, Y. P., Shang, R. C., Shao, B. B., Wang, J. J., Panvini, R. S., Reeves, T. W., Sheldon, P. D., Webster, M. S., Mcdougald, M., Pitman, D., Band, H. R., Johnson, J. R., Prepost, R., Zapalac, G. H., and Frisken, William R.

16. SLD: LETTER OF INTENT

Author

Axen, D., Benvenuti, A. C., Whitaker, John Scott, Dejongh, F., Eigen, G., Hitlin, D., Kennett, R., Dauer, D., Caldwell, David O., Lu, A., Morrison, R. J., Witherell, Michael S., Yellin, S. J., Coyne, D. G., Cavalli-Sforza, M., Endorf, R., Johnson, Randy A., Meadows, B. T., Nussbaum, M., Carr, J., Cremaldi, L., Nauenberg, U., Baltay, C., Hyatt, E., Manly, S., Rabinowitz, S., Rowson, P. C., Shaevitz, M. H., Smith, S. R., Steiner, R., Callegari, G., Piemontese, L., Sangro, R., Peruzzi, I., Piccolo, M., Brown, J. S., Gladding, G., Pregernig, L., Thaler, J., Busza, W., Friedman, Jerome I., Fuess, S., Johnson, A. S., Kendall, Henry W., Kistiakowsky, V., Osborne, L. S., Palounek, A. P. T., Rosenson, L., Taylor, F., Verdier, R., Yamamoto, R. K., Band, H., Bisello, D., Loreti, M., Pescara, L., Alpat, B., Battiston, R., Bilei, G. M., Cenci, P., Mantovani, G. C., Pauluzzi, M., Castaldi, R., Vannini, C., Verdini, P. G., Damerell, C., Gillman, A., Watts, S. J., Wickens, F., Hodges, C., Ash, W., Ashford, V., Aston, D., Atwood, W. B., Bird, F., Bienz, T., Breidenbach, Martin, Chadwick, G. B., Dunwoodie, W. M., Ecklund, Stanley D., Fryberger, D., Hallewell, G. D., Hansl-Kozanecka, T., Gearhart, R., Kunz, Paul F., Leith, David W. G. S., Lynch, H. L., Messner, R., Nielsen, B. S., Prescott, C. Y., Ratcliff, B., Rochester, L. S., Rothenberg, A., Schindler, R. H., Schultz, D., Shapiro, S., Sherden, D., Stiening, R., Russell, J. J., Toge, N., Wiser, D. E., Young, C., Brau, J., Bugg, W. M., Weidemann, A., Ludgate, G. A., Olin, A., Oram, C. J., Barnes, A. V., Csorna, S., Panvini, R., Prindle, D., Reeves, T. W., Astbury, A., Beer, G. A., Dubois, R., Keeler, R., Mason, G. R., Robertson, L. P., Young, E., Cook, V., Davisson, R., Mockett, P. M., Rothberg, J. E., John Rutherfoord, Williams, R. W., Vella, E., Young, K. K., Johnson, J. R., Maruyama, T., and Prepost, R.

17. Measurements of $R = \sigma_{L} / \sigma_{T}$ for 0.03 $<$ x $<$ 0.1 and fit to world data

Author

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., Vincent Breton, 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., 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., Stuart, L. M., Suekane, F., Szalata, Z. M., Hao Tang, 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., 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 E143

Subjects
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics
Abstract

Measurements were made at SLAC of the cross section for scattering 29 GeV electrons from carbon at a laboratory angle of 4.5 degrees, corresponding to 0.03

18. Spin structure measurements at SLAC

Author

Meyer, W., 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., Vincent Breton, 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., 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., 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-Aramayo, O., Sick, I., Smith, L. C., Smith, T. B., Spengos, M., Staley, F., Steiner, P., Stuart, L. M., Suekane, F., Szalata, Z. M., Hao Tang, Terrien, Y., Usher, T., Walz, D., White, J. L., Witte, K., Young, C. C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., 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), Wagner G.J. Bilger R. Hehl T., and E143

Subjects
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]

19. Proposal to measure polarized open charm photoproduction

Author

Arnold, R. G., Bosted, Peter E., Depietro, P., Reyna, D., Rock, S. E., Sorrell, L., Toole, T., Szalata, Z. M., Berisso, C., Hicks, R., Peterson, G., Shaw, J., Averett, T., Borel, H., Lombard, R., Terrien, Y., Penttila, S., Klein, A., Kuhn, S. E., Hyde, Charles Earl, Qin, L. M., Wesselmann, Frank R., Marvin, T., Buenerd, M., Decowski, P., Anthony, P., Dutz, H., Erbacher, Robin D., Erickson, R., Fieguth, T., Gearhart, R., Meyer, W., Perl, M., Pitthan, R., Rokni, S., St Lorant, S., Stuart, L., Walz, D., Bueltmann, S., Cothran, C., Crabb, D., Day, D., Frlez, E., Harris, C., Hutchins, R., Lindgren, R., Mccarthy, James S., Mckee, P., Pocanic, D., Rondon-Aramayo, Oscar A., Tobias, A., Zhu, H., Armstrong, D., Griffioen, K., Paul King, Band, H., Johnson, J., and Prepost, R.

20. Measurements of the Q$^2$-dependence of the proton and deuteron spin structure functions $g^{p}_{1}$ and $g^{d}_{1}$

Author

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., Vincent Breton, 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., Hoeibraten, 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., Rock, S. E., Rondon Aramayo, O., Sick, I., Smith, L. C., Smith, T. B., Spengos, M., Staley, F., Steiner, P., Stuart, L. M., Suekane, F., Szalata, Z. M., Hao Tang, Terrien, Y., Usher, T., Walz, D., White, J. L., Witte, K., Young, C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmermann, D., 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 E143

Subjects
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract

The ratio g1/F1 has been measured over the range 0.03

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