Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries

B. Adeva; E. Arik; A. Arvidson; B. Badelek; M. K. Ballintijn; G. Bardin; G. Baum; P. Berglund; L. Betev; I. G. Bird; R. Birsa; P. Björkholm; B. E. Bonner; N. de Botton; F. Bradamante; A. Bressan; S. Bültmann; E. Burtin; C. Cavata; D. Crabb; J. Cranshaw; T. Çuhadar; S. Dalla Torre; R. van Dantzig; A. Deshpande; S. Dhawan; C. Dulya; A. Dyring; S. Eichblatt; J. C. Faivre; D. Fasching; F. Feinstein; C. Fernandez; B. Frois; J. A. Garzon; T. Gaussiran; M. Giorgi; E. von Goeler; A. Gomez; G. Gracia; N. de Groot; M. Grosse Perdekamp; E. Gülmez; D. von Harrach; T. Hasegawa; P. Hautle; N. Hayashi; C. A. Heusch; N. Horikawa; V. W. Hughes; G. Igo; S. Ishimoto; T. Iwata; E. M. Kabuß; T. Kageya; A. Karev; H. J. Kessler; T. J. Ketel; A. Kishi; Y. Kisselev; L. Klostermann; D. Kramer; V. Krivokhijine; W. Kröger; J. Kyynäräinen; M. Lamanna; U. Landgraf; T. Layda; J. M. Le Goff; F. Lehar; A. de Lesquen; J. Lichtenstadt; M. Litmaath; S. Lopez-Ponte; M. Lowe; A. Magnon; G. K. Mallot; F. Marie; A. Martin; J. Martino; T. Matsuda; B. Mayes; J. S. McCarthy; K. Medved; G. van Middelkoop; D. Miller; K. Mori; J. Moromisato; A. Nagaitsev; J. Nassalski; L. Naumann; T. O. Niinikoski; J. E.J. Oberski; A. Ogawa; C. Ozben; A. Penzo; C. Perez; F. Perrot-Kunne; D. Peshekhonov; R. Piegaia

doi:10.1016/0370-2693(95)01584-1

Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries

B. Adeva, E. Arik, A. Arvidson, B. Badelek, M. K. Ballintijn, G. Bardin, G. Baum, P. Berglund, L. Betev, I. G. Bird, R. Birsa, P. Björkholm, B. E. Bonner, N. de Botton, F. Bradamante, A. Bressan, S. Bültmann, E. Burtin, C. Cavata, D. CrabbJ. Cranshaw, T. Çuhadar, S. Dalla Torre, R. van Dantzig, A. Deshpande, S. Dhawan, C. Dulya, A. Dyring, S. Eichblatt, J. C. Faivre, D. Fasching, F. Feinstein, C. Fernandez, B. Frois, J. A. Garzon, T. Gaussiran, M. Giorgi, E. von Goeler, A. Gomez, G. Gracia, N. de Groot, M. Grosse Perdekamp, E. Gülmez, D. von Harrach, T. Hasegawa, P. Hautle, N. Hayashi, C. A. Heusch, N. Horikawa, V. W. Hughes, G. Igo, S. Ishimoto, T. Iwata, E. M. Kabuß, T. Kageya, A. Karev, H. J. Kessler, T. J. Ketel, A. Kishi, Y. Kisselev, L. Klostermann, D. Kramer, V. Krivokhijine, W. Kröger, J. Kyynäräinen, M. Lamanna, U. Landgraf, T. Layda, J. M. Le Goff, F. Lehar, A. de Lesquen, J. Lichtenstadt, M. Litmaath, S. Lopez-Ponte, M. Lowe, A. Magnon, G. K. Mallot, F. Marie, A. Martin, J. Martino, T. Matsuda, B. Mayes, J. S. McCarthy, K. Medved, G. van Middelkoop, D. Miller, K. Mori, J. Moromisato, A. Nagaitsev, J. Nassalski, L. Naumann, T. O. Niinikoski, J. E.J. Oberski, A. Ogawa, C. Ozben, A. Penzo, C. Perez, F. Perrot-Kunne, D. Peshekhonov, R. Piegaia

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Abstract

We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003 <x <0.7. From these asymmetries and the previously published inclusive spin asymmetries we determine, for the first time, the x-dependent spin distributions for up and down valence quarks and for non-strange sea quarks. We find that the first moments of the valence quark spin distributions are Δuv = 1.01 ± 0.19 ± 0.14 and Δdv = -0.57 ± 0.22 ± 0.11. The spin distribution function of non-strange sea quarks is consistent with zero over the measured range of x and the first moment is Δū = Δd̄ = -0.02 ± 0.09 ± 0.03.

Original language	English
Pages (from-to)	93-100
Number of pages	8
Journal	Physics Letters B
Volume	369
Issue number	1
DOIs	https://doi.org/10.1016/0370-2693(95)01584-1
Publication status	Published - 15 Feb 1996
MoE publication type	A1 Journal article-refereed

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10.1016/0370-2693(95)01584-1

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Adeva, B., Arik, E., Arvidson, A., Badelek, B., Ballintijn, M. K., Bardin, G., Baum, G., Berglund, P., Betev, L., Bird, I. G., Birsa, R., Björkholm, P., Bonner, B. E., de Botton, N., Bradamante, F., Bressan, A., Bültmann, S., Burtin, E., Cavata, C., ... Piegaia, R. (1996). Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries. Physics Letters B, 369(1), 93-100. https://doi.org/10.1016/0370-2693(95)01584-1

@article{8b651a44a2b14d56a79a68ea423f59dc,

title = "Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries",

abstract = "We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003 <x <0.7. From these asymmetries and the previously published inclusive spin asymmetries we determine, for the first time, the x-dependent spin distributions for up and down valence quarks and for non-strange sea quarks. We find that the first moments of the valence quark spin distributions are Δuv = 1.01 ± 0.19 ± 0.14 and Δdv = -0.57 ± 0.22 ± 0.11. The spin distribution function of non-strange sea quarks is consistent with zero over the measured range of x and the first moment is Δū = Δ{\=d} = -0.02 ± 0.09 ± 0.03.",

author = "B. Adeva and E. Arik and A. Arvidson and B. Badelek and Ballintijn, {M. K.} and G. Bardin and G. Baum and P. Berglund and L. Betev and Bird, {I. G.} and R. Birsa and P. Bj{\"o}rkholm and Bonner, {B. E.} and {de Botton}, N. and F. Bradamante and A. Bressan and S. B{\"u}ltmann and E. Burtin and C. Cavata and D. Crabb and J. Cranshaw and T. {\c C}uhadar and {Dalla Torre}, S. and {van Dantzig}, R. and A. Deshpande and S. Dhawan and C. Dulya and A. Dyring and S. Eichblatt and Faivre, {J. C.} and D. Fasching and F. Feinstein and C. Fernandez and B. Frois and Garzon, {J. A.} and T. Gaussiran and M. Giorgi and {von Goeler}, E. and A. Gomez and G. Gracia and {de Groot}, N. and {Grosse Perdekamp}, M. and E. G{\"u}lmez and {von Harrach}, D. and T. Hasegawa and P. Hautle and N. Hayashi and Heusch, {C. A.} and N. Horikawa and Hughes, {V. W.} and G. Igo and S. Ishimoto and T. Iwata and Kabu{\ss}, {E. M.} and T. Kageya and A. Karev and Kessler, {H. J.} and Ketel, {T. J.} and A. Kishi and Y. Kisselev and L. Klostermann and D. Kramer and V. Krivokhijine and W. Kr{\"o}ger and J. Kyyn{\"a}r{\"a}inen and M. Lamanna and U. Landgraf and T. Layda and {Le Goff}, {J. M.} and F. Lehar and {de Lesquen}, A. and J. Lichtenstadt and M. Litmaath and S. Lopez-Ponte and M. Lowe and A. Magnon and Mallot, {G. K.} and F. Marie and A. Martin and J. Martino and T. Matsuda and B. Mayes and McCarthy, {J. S.} and K. Medved and {van Middelkoop}, G. and D. Miller and K. Mori and J. Moromisato and A. Nagaitsev and J. Nassalski and L. Naumann and Niinikoski, {T. O.} and Oberski, {J. E.J.} and A. Ogawa and C. Ozben and A. Penzo and C. Perez and F. Perrot-Kunne and D. Peshekhonov and R. Piegaia",

year = "1996",

month = feb,

day = "15",

doi = "10.1016/0370-2693(95)01584-1",

language = "English",

volume = "369",

pages = "93--100",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1",

}

Adeva, B, Arik, E, Arvidson, A, Badelek, B, Ballintijn, MK, Bardin, G, Baum, G, Berglund, P, Betev, L, Bird, IG, Birsa, R, Björkholm, P, Bonner, BE, de Botton, N, Bradamante, F, Bressan, A, Bültmann, S, Burtin, E, Cavata, C, Crabb, D, Cranshaw, J, Çuhadar, T, Dalla Torre, S, van Dantzig, R, Deshpande, A, Dhawan, S, Dulya, C, Dyring, A, Eichblatt, S, Faivre, JC, Fasching, D, Feinstein, F, Fernandez, C, Frois, B, Garzon, JA, Gaussiran, T, Giorgi, M, von Goeler, E, Gomez, A, Gracia, G, de Groot, N, Grosse Perdekamp, M, Gülmez, E, von Harrach, D, Hasegawa, T, Hautle, P, Hayashi, N, Heusch, CA, Horikawa, N, Hughes, VW, Igo, G, Ishimoto, S, Iwata, T, Kabuß, EM, Kageya, T, Karev, A, Kessler, HJ, Ketel, TJ, Kishi, A, Kisselev, Y, Klostermann, L, Kramer, D, Krivokhijine, V, Kröger, W, Kyynäräinen, J, Lamanna, M, Landgraf, U, Layda, T, Le Goff, JM, Lehar, F, de Lesquen, A, Lichtenstadt, J, Litmaath, M, Lopez-Ponte, S, Lowe, M, Magnon, A, Mallot, GK, Marie, F, Martin, A, Martino, J, Matsuda, T, Mayes, B, McCarthy, JS, Medved, K, van Middelkoop, G, Miller, D, Mori, K, Moromisato, J, Nagaitsev, A, Nassalski, J, Naumann, L, Niinikoski, TO, Oberski, JEJ, Ogawa, A, Ozben, C, Penzo, A, Perez, C, Perrot-Kunne, F, Peshekhonov, D & Piegaia, R 1996, 'Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries', Physics Letters B, vol. 369, no. 1, pp. 93-100. https://doi.org/10.1016/0370-2693(95)01584-1

TY - JOUR

T1 - Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries

AU - Adeva, B.

AU - Arik, E.

AU - Arvidson, A.

AU - Badelek, B.

AU - Ballintijn, M. K.

AU - Bardin, G.

AU - Baum, G.

AU - Berglund, P.

AU - Betev, L.

AU - Bird, I. G.

AU - Birsa, R.

AU - Björkholm, P.

AU - Bonner, B. E.

AU - de Botton, N.

AU - Bradamante, F.

AU - Bressan, A.

AU - Bültmann, S.

AU - Burtin, E.

AU - Cavata, C.

AU - Crabb, D.

AU - Cranshaw, J.

AU - Çuhadar, T.

AU - Dalla Torre, S.

AU - van Dantzig, R.

AU - Deshpande, A.

AU - Dhawan, S.

AU - Dulya, C.

AU - Dyring, A.

AU - Eichblatt, S.

AU - Faivre, J. C.

AU - Fasching, D.

AU - Feinstein, F.

AU - Fernandez, C.

AU - Frois, B.

AU - Garzon, J. A.

AU - Gaussiran, T.

AU - Giorgi, M.

AU - von Goeler, E.

AU - Gomez, A.

AU - Gracia, G.

AU - de Groot, N.

AU - Grosse Perdekamp, M.

AU - Gülmez, E.

AU - von Harrach, D.

AU - Hasegawa, T.

AU - Hautle, P.

AU - Hayashi, N.

AU - Heusch, C. A.

AU - Horikawa, N.

AU - Hughes, V. W.

AU - Igo, G.

AU - Ishimoto, S.

AU - Iwata, T.

AU - Kabuß, E. M.

AU - Kageya, T.

AU - Karev, A.

AU - Kessler, H. J.

AU - Ketel, T. J.

AU - Kishi, A.

AU - Kisselev, Y.

AU - Klostermann, L.

AU - Kramer, D.

AU - Krivokhijine, V.

AU - Kröger, W.

AU - Kyynäräinen, J.

AU - Lamanna, M.

AU - Landgraf, U.

AU - Layda, T.

AU - Le Goff, J. M.

AU - Lehar, F.

AU - de Lesquen, A.

AU - Lichtenstadt, J.

AU - Litmaath, M.

AU - Lopez-Ponte, S.

AU - Lowe, M.

AU - Magnon, A.

AU - Mallot, G. K.

AU - Marie, F.

AU - Martin, A.

AU - Martino, J.

AU - Matsuda, T.

AU - Mayes, B.

AU - McCarthy, J. S.

AU - Medved, K.

AU - van Middelkoop, G.

AU - Miller, D.

AU - Mori, K.

AU - Moromisato, J.

AU - Nagaitsev, A.

AU - Nassalski, J.

AU - Naumann, L.

AU - Niinikoski, T. O.

AU - Oberski, J. E.J.

AU - Ogawa, A.

AU - Ozben, C.

AU - Penzo, A.

AU - Perez, C.

AU - Perrot-Kunne, F.

AU - Peshekhonov, D.

AU - Piegaia, R.

PY - 1996/2/15

Y1 - 1996/2/15

N2 - We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003 <x <0.7. From these asymmetries and the previously published inclusive spin asymmetries we determine, for the first time, the x-dependent spin distributions for up and down valence quarks and for non-strange sea quarks. We find that the first moments of the valence quark spin distributions are Δuv = 1.01 ± 0.19 ± 0.14 and Δdv = -0.57 ± 0.22 ± 0.11. The spin distribution function of non-strange sea quarks is consistent with zero over the measured range of x and the first moment is Δū = Δd̄ = -0.02 ± 0.09 ± 0.03.

AB - We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003 <x <0.7. From these asymmetries and the previously published inclusive spin asymmetries we determine, for the first time, the x-dependent spin distributions for up and down valence quarks and for non-strange sea quarks. We find that the first moments of the valence quark spin distributions are Δuv = 1.01 ± 0.19 ± 0.14 and Δdv = -0.57 ± 0.22 ± 0.11. The spin distribution function of non-strange sea quarks is consistent with zero over the measured range of x and the first moment is Δū = Δd̄ = -0.02 ± 0.09 ± 0.03.

UR - http://www.scopus.com/inward/record.url?scp=0002308514&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(95)01584-1

DO - 10.1016/0370-2693(95)01584-1

M3 - Article

AN - SCOPUS:0002308514

SN - 0370-2693

VL - 369

SP - 93

EP - 100

JO - Physics Letters B

JF - Physics Letters B

IS - 1

ER -

Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries

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