Precision Measurement of the Neutron Spin Asymmetry[Formula presented] and Spin-Flavor Decomposition in the Valence Quark Region

X. Zheng, K. Aniol, D. S. Armstrong, T. D. Averett, W. Bertozzi, S. Binet, E. Burtin, E. Busato, C. Butuceanu, J. Calarco, A. Camsonne, G. D. Cates, Z. Chai, J. P. Chen, Seonho Choi, E. Chudakov, F. Cusanno, R. De Leo, A. Deur, Sonja DieterichD. Dutta, J. M. Finn, S. Frullani, H. Gao, J. Gao, F. Garibaldi, S. Gilad, R. Gilman, J. Gomez, J. O. Hansen, D. W. Higinbotham, W. Hinton, T. Horn, C. W. de Jager, X. Jiang, L. Kaufman, J. Kelly, W. Korsch, K. Kramer, J. LeRose, D. Lhuillier, N. Liyanage, D. J. Margaziotis, F. Marie, P. Markowitz, K. McCormick, Z. E. Meziani, R. Michaels, B. Moffit, S. Nanda, D. Neyret, S. K. Phillips, A. Powell, T. Pussieux, B. Reitz, J. Roche, R. Roche, M. Roedelbronn, G. Ron, M. Rvachev, A. Saha, N. Savvinov, J. Singh, S. Širca, K. Slifer, P. Solvignon, P. Souder, D. J. Steiner, S. Strauch, V. Sulkosky, A. Tobias, G. Urciuoli, A. Vacheret, B. Wojtsekhowski, H. Xiang, Y. Xiao, F. Xiong, B. Zhang, L. Zhu, X. Zhu, P. A. Żołnierczuk

Research output: Contribution to journalArticle

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Abstract

We have measured the neutron spin asymmetry [Formula presented] with high precision at three kinematics in the deep inelastic region at [Formula presented], [Formula presented], and [Formula presented], and [Formula presented], [Formula presented], and [Formula presented], respectively. Our results unambiguously show, for the first time, that [Formula presented] crosses zero around [Formula presented] and becomes significantly positive at [Formula presented]. Combined with the world proton data, polarized quark distributions were extracted. Our results, in general, agree with relativistic constituent quark models and with perturbative quantum chromodynamics (PQCD) analyses based on the earlier data. However they deviate from PQCD predictions based on hadron helicity conservation.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review Letters
Volume92
Issue number1
DOIs
StatePublished - Jan 1 2004
Externally publishedYes

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asymmetry
quarks
valence
decomposition
neutrons
quantum chromodynamics
quark models
conservation
kinematics
protons
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Precision Measurement of the Neutron Spin Asymmetry[Formula presented] and Spin-Flavor Decomposition in the Valence Quark Region. / Zheng, X.; Aniol, K.; Armstrong, D. S.; Averett, T. D.; Bertozzi, W.; Binet, S.; Burtin, E.; Busato, E.; Butuceanu, C.; Calarco, J.; Camsonne, A.; Cates, G. D.; Chai, Z.; Chen, J. P.; Choi, Seonho; Chudakov, E.; Cusanno, F.; De Leo, R.; Deur, A.; Dieterich, Sonja; Dutta, D.; Finn, J. M.; Frullani, S.; Gao, H.; Gao, J.; Garibaldi, F.; Gilad, S.; Gilman, R.; Gomez, J.; Hansen, J. O.; Higinbotham, D. W.; Hinton, W.; Horn, T.; de Jager, C. W.; Jiang, X.; Kaufman, L.; Kelly, J.; Korsch, W.; Kramer, K.; LeRose, J.; Lhuillier, D.; Liyanage, N.; Margaziotis, D. J.; Marie, F.; Markowitz, P.; McCormick, K.; Meziani, Z. E.; Michaels, R.; Moffit, B.; Nanda, S.; Neyret, D.; Phillips, S. K.; Powell, A.; Pussieux, T.; Reitz, B.; Roche, J.; Roche, R.; Roedelbronn, M.; Ron, G.; Rvachev, M.; Saha, A.; Savvinov, N.; Singh, J.; Širca, S.; Slifer, K.; Solvignon, P.; Souder, P.; Steiner, D. J.; Strauch, S.; Sulkosky, V.; Tobias, A.; Urciuoli, G.; Vacheret, A.; Wojtsekhowski, B.; Xiang, H.; Xiao, Y.; Xiong, F.; Zhang, B.; Zhu, L.; Zhu, X.; Żołnierczuk, P. A.

In: Physical Review Letters, Vol. 92, No. 1, 01.01.2004.

Research output: Contribution to journalArticle

Zheng, X, Aniol, K, Armstrong, DS, Averett, TD, Bertozzi, W, Binet, S, Burtin, E, Busato, E, Butuceanu, C, Calarco, J, Camsonne, A, Cates, GD, Chai, Z, Chen, JP, Choi, S, Chudakov, E, Cusanno, F, De Leo, R, Deur, A, Dieterich, S, Dutta, D, Finn, JM, Frullani, S, Gao, H, Gao, J, Garibaldi, F, Gilad, S, Gilman, R, Gomez, J, Hansen, JO, Higinbotham, DW, Hinton, W, Horn, T, de Jager, CW, Jiang, X, Kaufman, L, Kelly, J, Korsch, W, Kramer, K, LeRose, J, Lhuillier, D, Liyanage, N, Margaziotis, DJ, Marie, F, Markowitz, P, McCormick, K, Meziani, ZE, Michaels, R, Moffit, B, Nanda, S, Neyret, D, Phillips, SK, Powell, A, Pussieux, T, Reitz, B, Roche, J, Roche, R, Roedelbronn, M, Ron, G, Rvachev, M, Saha, A, Savvinov, N, Singh, J, Širca, S, Slifer, K, Solvignon, P, Souder, P, Steiner, DJ, Strauch, S, Sulkosky, V, Tobias, A, Urciuoli, G, Vacheret, A, Wojtsekhowski, B, Xiang, H, Xiao, Y, Xiong, F, Zhang, B, Zhu, L, Zhu, X & Żołnierczuk, PA 2004, 'Precision Measurement of the Neutron Spin Asymmetry[Formula presented] and Spin-Flavor Decomposition in the Valence Quark Region', Physical Review Letters, vol. 92, no. 1. https://doi.org/10.1103/PhysRevLett.92.012004
Zheng, X. ; Aniol, K. ; Armstrong, D. S. ; Averett, T. D. ; Bertozzi, W. ; Binet, S. ; Burtin, E. ; Busato, E. ; Butuceanu, C. ; Calarco, J. ; Camsonne, A. ; Cates, G. D. ; Chai, Z. ; Chen, J. P. ; Choi, Seonho ; Chudakov, E. ; Cusanno, F. ; De Leo, R. ; Deur, A. ; Dieterich, Sonja ; Dutta, D. ; Finn, J. M. ; Frullani, S. ; Gao, H. ; Gao, J. ; Garibaldi, F. ; Gilad, S. ; Gilman, R. ; Gomez, J. ; Hansen, J. O. ; Higinbotham, D. W. ; Hinton, W. ; Horn, T. ; de Jager, C. W. ; Jiang, X. ; Kaufman, L. ; Kelly, J. ; Korsch, W. ; Kramer, K. ; LeRose, J. ; Lhuillier, D. ; Liyanage, N. ; Margaziotis, D. J. ; Marie, F. ; Markowitz, P. ; McCormick, K. ; Meziani, Z. E. ; Michaels, R. ; Moffit, B. ; Nanda, S. ; Neyret, D. ; Phillips, S. K. ; Powell, A. ; Pussieux, T. ; Reitz, B. ; Roche, J. ; Roche, R. ; Roedelbronn, M. ; Ron, G. ; Rvachev, M. ; Saha, A. ; Savvinov, N. ; Singh, J. ; Širca, S. ; Slifer, K. ; Solvignon, P. ; Souder, P. ; Steiner, D. J. ; Strauch, S. ; Sulkosky, V. ; Tobias, A. ; Urciuoli, G. ; Vacheret, A. ; Wojtsekhowski, B. ; Xiang, H. ; Xiao, Y. ; Xiong, F. ; Zhang, B. ; Zhu, L. ; Zhu, X. ; Żołnierczuk, P. A. / Precision Measurement of the Neutron Spin Asymmetry[Formula presented] and Spin-Flavor Decomposition in the Valence Quark Region. In: Physical Review Letters. 2004 ; Vol. 92, No. 1.
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title = "Precision Measurement of the Neutron Spin Asymmetry[Formula presented] and Spin-Flavor Decomposition in the Valence Quark Region",
abstract = "We have measured the neutron spin asymmetry [Formula presented] with high precision at three kinematics in the deep inelastic region at [Formula presented], [Formula presented], and [Formula presented], and [Formula presented], [Formula presented], and [Formula presented], respectively. Our results unambiguously show, for the first time, that [Formula presented] crosses zero around [Formula presented] and becomes significantly positive at [Formula presented]. Combined with the world proton data, polarized quark distributions were extracted. Our results, in general, agree with relativistic constituent quark models and with perturbative quantum chromodynamics (PQCD) analyses based on the earlier data. However they deviate from PQCD predictions based on hadron helicity conservation.",
author = "X. Zheng and K. Aniol and Armstrong, {D. S.} and Averett, {T. D.} and W. Bertozzi and S. Binet and E. Burtin and E. Busato and C. Butuceanu and J. Calarco and A. Camsonne and Cates, {G. D.} and Z. Chai and Chen, {J. P.} and Seonho Choi and E. Chudakov and F. Cusanno and {De Leo}, R. and A. Deur and Sonja Dieterich and D. Dutta and Finn, {J. M.} and S. Frullani and H. Gao and J. Gao and F. Garibaldi and S. Gilad and R. Gilman and J. Gomez and Hansen, {J. O.} and Higinbotham, {D. W.} and W. Hinton and T. Horn and {de Jager}, {C. W.} and X. Jiang and L. Kaufman and J. Kelly and W. Korsch and K. Kramer and J. LeRose and D. Lhuillier and N. Liyanage and Margaziotis, {D. J.} and F. Marie and P. Markowitz and K. McCormick and Meziani, {Z. E.} and R. Michaels and B. Moffit and S. Nanda and D. Neyret and Phillips, {S. K.} and A. Powell and T. Pussieux and B. Reitz and J. Roche and R. Roche and M. Roedelbronn and G. Ron and M. Rvachev and A. Saha and N. Savvinov and J. Singh and S. Širca and K. Slifer and P. Solvignon and P. Souder and Steiner, {D. J.} and S. Strauch and V. Sulkosky and A. Tobias and G. Urciuoli and A. Vacheret and B. Wojtsekhowski and H. Xiang and Y. Xiao and F. Xiong and B. Zhang and L. Zhu and X. Zhu and Żołnierczuk, {P. A.}",
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T1 - Precision Measurement of the Neutron Spin Asymmetry[Formula presented] and Spin-Flavor Decomposition in the Valence Quark Region

AU - Zheng, X.

AU - Aniol, K.

AU - Armstrong, D. S.

AU - Averett, T. D.

AU - Bertozzi, W.

AU - Binet, S.

AU - Burtin, E.

AU - Busato, E.

AU - Butuceanu, C.

AU - Calarco, J.

AU - Camsonne, A.

AU - Cates, G. D.

AU - Chai, Z.

AU - Chen, J. P.

AU - Choi, Seonho

AU - Chudakov, E.

AU - Cusanno, F.

AU - De Leo, R.

AU - Deur, A.

AU - Dieterich, Sonja

AU - Dutta, D.

AU - Finn, J. M.

AU - Frullani, S.

AU - Gao, H.

AU - Gao, J.

AU - Garibaldi, F.

AU - Gilad, S.

AU - Gilman, R.

AU - Gomez, J.

AU - Hansen, J. O.

AU - Higinbotham, D. W.

AU - Hinton, W.

AU - Horn, T.

AU - de Jager, C. W.

AU - Jiang, X.

AU - Kaufman, L.

AU - Kelly, J.

AU - Korsch, W.

AU - Kramer, K.

AU - LeRose, J.

AU - Lhuillier, D.

AU - Liyanage, N.

AU - Margaziotis, D. J.

AU - Marie, F.

AU - Markowitz, P.

AU - McCormick, K.

AU - Meziani, Z. E.

AU - Michaels, R.

AU - Moffit, B.

AU - Nanda, S.

AU - Neyret, D.

AU - Phillips, S. K.

AU - Powell, A.

AU - Pussieux, T.

AU - Reitz, B.

AU - Roche, J.

AU - Roche, R.

AU - Roedelbronn, M.

AU - Ron, G.

AU - Rvachev, M.

AU - Saha, A.

AU - Savvinov, N.

AU - Singh, J.

AU - Širca, S.

AU - Slifer, K.

AU - Solvignon, P.

AU - Souder, P.

AU - Steiner, D. J.

AU - Strauch, S.

AU - Sulkosky, V.

AU - Tobias, A.

AU - Urciuoli, G.

AU - Vacheret, A.

AU - Wojtsekhowski, B.

AU - Xiang, H.

AU - Xiao, Y.

AU - Xiong, F.

AU - Zhang, B.

AU - Zhu, L.

AU - Zhu, X.

AU - Żołnierczuk, P. A.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - We have measured the neutron spin asymmetry [Formula presented] with high precision at three kinematics in the deep inelastic region at [Formula presented], [Formula presented], and [Formula presented], and [Formula presented], [Formula presented], and [Formula presented], respectively. Our results unambiguously show, for the first time, that [Formula presented] crosses zero around [Formula presented] and becomes significantly positive at [Formula presented]. Combined with the world proton data, polarized quark distributions were extracted. Our results, in general, agree with relativistic constituent quark models and with perturbative quantum chromodynamics (PQCD) analyses based on the earlier data. However they deviate from PQCD predictions based on hadron helicity conservation.

AB - We have measured the neutron spin asymmetry [Formula presented] with high precision at three kinematics in the deep inelastic region at [Formula presented], [Formula presented], and [Formula presented], and [Formula presented], [Formula presented], and [Formula presented], respectively. Our results unambiguously show, for the first time, that [Formula presented] crosses zero around [Formula presented] and becomes significantly positive at [Formula presented]. Combined with the world proton data, polarized quark distributions were extracted. Our results, in general, agree with relativistic constituent quark models and with perturbative quantum chromodynamics (PQCD) analyses based on the earlier data. However they deviate from PQCD predictions based on hadron helicity conservation.

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U2 - 10.1103/PhysRevLett.92.012004

DO - 10.1103/PhysRevLett.92.012004

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JO - Physical Review Letters

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