Measurement of the neutron spin structure function g(1)(n) with a polarized He-3 internal target

K. Ackerstaff; A. Airapetian; I. Akushevich; N. Akopov; M. Amarian; E.C. Aschenauer; R. Avakian; H. Avakian; A. Avetissian; B. Bains; S. Barrow; M. Beckmann; S. Belostotski; J.E. Belz; T. Benisch; S. Bernreuther; N. Bianchi; S. Blanchard; J. Blouw; H. Bottcher; A. Borissov; J. Brack; B. Braun; B. Bray; W. Bruckner; A. Brull; E.E.W. Bruins; H.J. Bulten; G.P. Capitani; P. Carter; E. Cisbani; G.R. Court; P.P.J. Delheij; E. Devitsin; C.W. deJager; E. DeSanctis; D. DeSchepper; P.K.A.D. Huberts; M. Duren; A. Dvoredsky; G. Elbakian; J. Emerson; A. Fantoni; A. Fechtchenko; M. Ferstl; D. Fick; K. Fiedler; B.W. Filippone; H. Fischer; H.T. Fortune

doi:10.1016/S0370-2693(97)00611-4

Measurement of the neutron spin structure function g(1)(n) with a polarized He-3 internal target

K. Ackerstaff^*, A. Airapetian, I. Akushevich, N. Akopov, M. Amarian, E.C. Aschenauer, R. Avakian, H. Avakian, A. Avetissian, B. Bains, S. Barrow, M. Beckmann, S. Belostotski, J.E. Belz, T. Benisch, S. Bernreuther, N. Bianchi, S. Blanchard, J. Blouw, H. BottcherA. Borissov, J. Brack, B. Braun, B. Bray, W. Bruckner, A. Brull, E.E.W. Bruins, H.J. Bulten, G.P. Capitani, P. Carter, E. Cisbani, G.R. Court, P.P.J. Delheij, E. Devitsin, C.W. deJager, E. DeSanctis, D. DeSchepper, P.K.A.D. Huberts, M. Duren, A. Dvoredsky, G. Elbakian, J. Emerson, A. Fantoni, A. Fechtchenko, M. Ferstl, D. Fick, K. Fiedler, B.W. Filippone, H. Fischer, H.T. Fortune

^*Corresponding author for this work

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

Abstract

Results are reported from the HERMES experiment at HERA on a measurement of the neutron spin structure function g(1)(n)(x, Q(2)) in deep inelastic scattering using 27.5 GeV longitudinally polarized positrons incident on a polarized He-3 internal gas target. The data cover the kinematic range 0.023 < x < 0.6 and 1 (GeV/c)(2) < Q(2) < 15 (GeV/c)(2). The integral integral(0.023)(0.16)g(1)(n)(x) dx evaluated at a fixed Q(2) of 2.5 (GeV/c)(2) is -0.034+/-0.013(stat.)+/-0.005(syst.). Assuming Regge behavior at low x, the first moment Gamma(1)(n) = integral(0)(1)g(1)(n)(x) dx is -0.037+/-0.013(stat.)+/-0.005(syst.)+/-0.006(extrapol.). (C) 1997 Published by Elsevier Science B.V.

Original language	English
Pages (from-to)	383-389
Number of pages	7
Journal	Physics Letters B
Volume	404
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(97)00611-4
Publication status	Published - 10 Jul 1997
Externally published	Yes

Keywords

DEEP-INELASTIC-SCATTERING
STRUCTURE-FUNCTION G1(X)
PRECISION-MEASUREMENT
SUM-RULE
PROTON
DEUTERON
ASYMMETRY
LEPTONS
NUCLEI
LASER

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Cite this

Ackerstaff, K., Airapetian, A., Akushevich, I., Akopov, N., Amarian, M., Aschenauer, E. C., Avakian, R., Avakian, H., Avetissian, A., Bains, B., Barrow, S., Beckmann, M., Belostotski, S., Belz, J. E., Benisch, T., Bernreuther, S., Bianchi, N., Blanchard, S., Blouw, J., ... Fortune, H. T. (1997). Measurement of the neutron spin structure function g(1)(n) with a polarized He-3 internal target. Physics Letters B, 404(3-4), 383-389. https://doi.org/10.1016/S0370-2693(97)00611-4

@article{4186ff696a85468da937a69d75d8b2b8,

title = "Measurement of the neutron spin structure function g(1)(n) with a polarized He-3 internal target",

abstract = "Results are reported from the HERMES experiment at HERA on a measurement of the neutron spin structure function g(1)(n)(x, Q(2)) in deep inelastic scattering using 27.5 GeV longitudinally polarized positrons incident on a polarized He-3 internal gas target. The data cover the kinematic range 0.023 < x < 0.6 and 1 (GeV/c)(2) < Q(2) < 15 (GeV/c)(2). The integral integral(0.023)(0.16)g(1)(n)(x) dx evaluated at a fixed Q(2) of 2.5 (GeV/c)(2) is -0.034+/-0.013(stat.)+/-0.005(syst.). Assuming Regge behavior at low x, the first moment Gamma(1)(n) = integral(0)(1)g(1)(n)(x) dx is -0.037+/-0.013(stat.)+/-0.005(syst.)+/-0.006(extrapol.). (C) 1997 Published by Elsevier Science B.V.",

keywords = "DEEP-INELASTIC-SCATTERING, STRUCTURE-FUNCTION G1(X), PRECISION-MEASUREMENT, SUM-RULE, PROTON, DEUTERON, ASYMMETRY, LEPTONS, NUCLEI, LASER",

author = "K. Ackerstaff and A. Airapetian and I. Akushevich and N. Akopov and M. Amarian and E.C. Aschenauer and R. Avakian and H. Avakian and A. Avetissian and B. Bains and S. Barrow and M. Beckmann and S. Belostotski and J.E. Belz and T. Benisch and S. Bernreuther and N. Bianchi and S. Blanchard and J. Blouw and H. Bottcher and A. Borissov and J. Brack and B. Braun and B. Bray and W. Bruckner and A. Brull and E.E.W. Bruins and H.J. Bulten and G.P. Capitani and P. Carter and E. Cisbani and G.R. Court and P.P.J. Delheij and E. Devitsin and C.W. deJager and E. DeSanctis and D. DeSchepper and P.K.A.D. Huberts and M. Duren and A. Dvoredsky and G. Elbakian and J. Emerson and A. Fantoni and A. Fechtchenko and M. Ferstl and D. Fick and K. Fiedler and B.W. Filippone and H. Fischer and H.T. Fortune",

year = "1997",

month = jul,

day = "10",

doi = "10.1016/S0370-2693(97)00611-4",

language = "English",

volume = "404",

pages = "383--389",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

Ackerstaff, K, Airapetian, A, Akushevich, I, Akopov, N, Amarian, M, Aschenauer, EC, Avakian, R, Avakian, H, Avetissian, A, Bains, B, Barrow, S, Beckmann, M, Belostotski, S, Belz, JE, Benisch, T, Bernreuther, S, Bianchi, N, Blanchard, S, Blouw, J, Bottcher, H, Borissov, A, Brack, J, Braun, B, Bray, B, Bruckner, W, Brull, A, Bruins, EEW, Bulten, HJ, Capitani, GP, Carter, P, Cisbani, E, Court, GR, Delheij, PPJ, Devitsin, E, deJager, CW, DeSanctis, E, DeSchepper, D, Huberts, PKAD, Duren, M, Dvoredsky, A, Elbakian, G, Emerson, J, Fantoni, A, Fechtchenko, A, Ferstl, M, Fick, D, Fiedler, K, Filippone, BW, Fischer, H & Fortune, HT 1997, 'Measurement of the neutron spin structure function g(1)(n) with a polarized He-3 internal target', Physics Letters B, vol. 404, no. 3-4, pp. 383-389. https://doi.org/10.1016/S0370-2693(97)00611-4

TY - JOUR

T1 - Measurement of the neutron spin structure function g(1)(n) with a polarized He-3 internal target

AU - Ackerstaff, K.

AU - Airapetian, A.

AU - Akushevich, I.

AU - Akopov, N.

AU - Amarian, M.

AU - Aschenauer, E.C.

AU - Avakian, R.

AU - Avakian, H.

AU - Avetissian, A.

AU - Bains, B.

AU - Barrow, S.

AU - Beckmann, M.

AU - Belostotski, S.

AU - Belz, J.E.

AU - Benisch, T.

AU - Bernreuther, S.

AU - Bianchi, N.

AU - Blanchard, S.

AU - Blouw, J.

AU - Bottcher, H.

AU - Borissov, A.

AU - Brack, J.

AU - Braun, B.

AU - Bray, B.

AU - Bruckner, W.

AU - Brull, A.

AU - Bruins, E.E.W.

AU - Bulten, H.J.

AU - Capitani, G.P.

AU - Carter, P.

AU - Cisbani, E.

AU - Court, G.R.

AU - Delheij, P.P.J.

AU - Devitsin, E.

AU - deJager, C.W.

AU - DeSanctis, E.

AU - DeSchepper, D.

AU - Huberts, P.K.A.D.

AU - Duren, M.

AU - Dvoredsky, A.

AU - Elbakian, G.

AU - Emerson, J.

AU - Fantoni, A.

AU - Fechtchenko, A.

AU - Ferstl, M.

AU - Fick, D.

AU - Fiedler, K.

AU - Filippone, B.W.

AU - Fischer, H.

AU - Fortune, H.T.

PY - 1997/7/10

Y1 - 1997/7/10

N2 - Results are reported from the HERMES experiment at HERA on a measurement of the neutron spin structure function g(1)(n)(x, Q(2)) in deep inelastic scattering using 27.5 GeV longitudinally polarized positrons incident on a polarized He-3 internal gas target. The data cover the kinematic range 0.023 < x < 0.6 and 1 (GeV/c)(2) < Q(2) < 15 (GeV/c)(2). The integral integral(0.023)(0.16)g(1)(n)(x) dx evaluated at a fixed Q(2) of 2.5 (GeV/c)(2) is -0.034+/-0.013(stat.)+/-0.005(syst.). Assuming Regge behavior at low x, the first moment Gamma(1)(n) = integral(0)(1)g(1)(n)(x) dx is -0.037+/-0.013(stat.)+/-0.005(syst.)+/-0.006(extrapol.). (C) 1997 Published by Elsevier Science B.V.

AB - Results are reported from the HERMES experiment at HERA on a measurement of the neutron spin structure function g(1)(n)(x, Q(2)) in deep inelastic scattering using 27.5 GeV longitudinally polarized positrons incident on a polarized He-3 internal gas target. The data cover the kinematic range 0.023 < x < 0.6 and 1 (GeV/c)(2) < Q(2) < 15 (GeV/c)(2). The integral integral(0.023)(0.16)g(1)(n)(x) dx evaluated at a fixed Q(2) of 2.5 (GeV/c)(2) is -0.034+/-0.013(stat.)+/-0.005(syst.). Assuming Regge behavior at low x, the first moment Gamma(1)(n) = integral(0)(1)g(1)(n)(x) dx is -0.037+/-0.013(stat.)+/-0.005(syst.)+/-0.006(extrapol.). (C) 1997 Published by Elsevier Science B.V.

KW - DEEP-INELASTIC-SCATTERING

KW - STRUCTURE-FUNCTION G1(X)

KW - PRECISION-MEASUREMENT

KW - SUM-RULE

KW - PROTON

KW - DEUTERON

KW - ASYMMETRY

KW - LEPTONS

KW - NUCLEI

KW - LASER

U2 - 10.1016/S0370-2693(97)00611-4

DO - 10.1016/S0370-2693(97)00611-4

M3 - Article

SN - 0370-2693

VL - 404

SP - 383

EP - 389

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -