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; S. Dieterich; D. 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

doi:10.1103/PhysRevLett.92.012004

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, S. 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

Department of Physics

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	5
Number of pages	1
Journal	Physical Review Letters
Volume	92
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.92.012004
State	Published - 2004

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.92.012004

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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, S., Chudakov, E., Cusanno, F., De Leo, R., Deur, A., ... Żołnierczuk, P. A. (2004). Precision Measurement of the Neutron Spin Asymmetry[Formula presented] and Spin-Flavor Decomposition in the Valence Quark Region. Physical Review Letters, 92(1), 5. https://doi.org/10.1103/PhysRevLett.92.012004

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, pp. 5. https://doi.org/10.1103/PhysRevLett.92.012004

@article{c941a6ca317d4f5bbda6c104fffbc62d,

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 S. 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. {\v S}irca 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 {\.Z}o{\l}nierczuk, {P. A.}",

year = "2004",

doi = "10.1103/PhysRevLett.92.012004",

language = "English (US)",

volume = "92",

pages = "5",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

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, S.

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

Y1 - 2004

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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UR - http://www.scopus.com/inward/citedby.url?scp=84883168202&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.92.012004

DO - 10.1103/PhysRevLett.92.012004

M3 - Article

AN - SCOPUS:84883168202

SN - 0031-9007

VL - 92

SP - 5

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

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

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