Polarised quark distributions in the nucleon from semi-inclusive spin asymmetries

B. Adeva; T. Akdogan; E. Arik; A. Arvidson; B. Badelek; G. Bardin; G. Baum; P. Berglund; L. Betev; R. Birsa; N. de Botton; F. Bradamante; A. Bravar; A. Bressan; S. Bültmann; E. Burtin; D. Crabb; J. Cranshaw; T. Çuhadar; S. Dalla Torre; R. van Dantzig; B. Derro; A. Deshpande; S. Dhawan; C. Dulya; S. Eichblatt; D. Fasching; F. Feinstein; C. Fernandez; S. Forthmann; B. Frois; A. Gallas; J. A. Garzon; H. Gilly; M. Giorgi; E. von Goeler; S. Goertz; G. Gracia; N. de Groot; M. Grosse Perdekamp; K. Haft; 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; J. Kiryluk; Y. Kisselev; D. Krämer; V. Krivokhijine; W. Kröger; V. Kukhtin; K. Kurek; J. Kyynäräinen; M. Lamanna; U. Landgraf; J. M. Le Goff; F. Lehar; A. de Lesquen; J. Lichtenstadt; M. Litmaath; A. Magnon; G. K. Mallot; F. Marie; A. Martin; J. Martino; T. Matsuda; B. Mayes; J. S. McCarthy; K. Medved; W. Meyer; G. van Middelkoop; D. Miller; Y. Miyachi; K. Mori; J. Moromisato; J. Nassalski; L. Naumann; T. O. Niinikoski; J. E.J. Oberski; A. Ogawa; C. Ozben; H. Pereira; F. Perrot-Kunne; D. Peshekhonov; L. Pinsky; S. Platchkov; M. Plo; D. Pose; H. Postma; J. Pretz; R. Puntaferro; G. Rädel; A. Rijllart; G. Reicherz; J. Roberts; M. Rodriguez; E. Rondio; B. Roscherr; I. Sabo; J. Saborido; A. Sandacz; I. Savin; P. Schiavon; A. Schiller; E. P. Sichtermann; F. Simeoni; G. I. Smirnov; A. Staude; A. Steinmetz; U. Stiegler; H. Stuhrmann; M. Szleper; F. Tessarotto; D. Thers; W. Tlaczala; A. Tripet; G. Unel; M. Velasco; J. Vogt; R. Voss; C. Whitten; R. Windmolders; R. Willumeit; W. Wislicki; A. Witzmann; J. Ylöstalo; A. M. Zanetti; K. Zaremba; J. Zhao

doi:10.1016/S0370-2693(97)01546-3

Polarised quark distributions in the nucleon from semi-inclusive spin asymmetries

B. Adeva^*, T. Akdogan, E. Arik, A. Arvidson, B. Badelek, G. Bardin, G. Baum, P. Berglund, L. Betev, R. Birsa, N. de Botton, F. Bradamante, A. Bravar, A. Bressan, S. Bültmann, E. Burtin, D. Crabb, J. Cranshaw, T. Çuhadar, S. Dalla TorreR. van Dantzig, B. Derro, A. Deshpande, S. Dhawan, C. Dulya, S. Eichblatt, D. Fasching, F. Feinstein, C. Fernandez, S. Forthmann, B. Frois, A. Gallas, J. A. Garzon, H. Gilly, M. Giorgi, E. von Goeler, S. Goertz, G. Gracia, N. de Groot, M. Grosse Perdekamp, K. Haft, 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, J. Kiryluk, Y. Kisselev, D. Krämer, V. Krivokhijine, W. Kröger, V. Kukhtin, K. Kurek, J. Kyynäräinen, M. Lamanna, U. Landgraf, J. M. Le Goff, F. Lehar, A. de Lesquen, J. Lichtenstadt, M. Litmaath, A. Magnon, G. K. Mallot, F. Marie, A. Martin, J. Martino, T. Matsuda, B. Mayes, J. S. McCarthy, K. Medved, W. Meyer, G. van Middelkoop, D. Miller, Y. Miyachi, K. Mori, J. Moromisato, J. Nassalski, L. Naumann, T. O. Niinikoski, J. E.J. Oberski, A. Ogawa, C. Ozben, H. Pereira, F. Perrot-Kunne, D. Peshekhonov, L. Pinsky, S. Platchkov, M. Plo, D. Pose, H. Postma, J. Pretz, R. Puntaferro, G. Rädel, A. Rijllart, G. Reicherz, J. Roberts, M. Rodriguez, E. Rondio, B. Roscherr, I. Sabo, J. Saborido, A. Sandacz, I. Savin, P. Schiavon, A. Schiller, E. P. Sichtermann, F. Simeoni, G. I. Smirnov, A. Staude, A. Steinmetz, U. Stiegler, H. Stuhrmann, M. Szleper, F. Tessarotto, D. Thers, W. Tlaczala, A. Tripet, G. Unel, M. Velasco, J. Vogt, R. Voss, C. Whitten, R. Windmolders, R. Willumeit, W. Wislicki, A. Witzmann, J. Ylöstalo, A. M. Zanetti, K. Zaremba, J. Zhao

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Özet

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 and Q² > 1 GeV². Compared to our previous publication on this subject, with the new data the statistical errors have been reduced by nearly a factor of two. From these asymmetries and our inclusive spin asymmetries we determine the polarised quark distributions of valence quarks and non-strange sea quarks at Q² = 10 GeV². The polarised u valence quark distribution, Δu_υ(×), is positive and the polarisation increases with x. The polarised d valence quark distribution, Δd_υ(x), is negative and the non-strange sea distribution, Δq^-(x), is consistent with zero over the measured range of x. We find for the first moments (latin small letter esh)¹₀Δu_υ(x)d x = 0.77 ± 0.10 ± 0.08, (latin small letter esh)¹₀Δd_υ(x)d x = -0.52 ± 0.14 ± 0.09 and (latin small letter esh)¹₀Δq^-(x)d x = 0.01 ± 0.04 ± 0.03, where we assumed Δu^-(x) = Δd^-(x). We also determine for the first time the second moments of the valence distributions (latin small letter esh)¹₀xΔq_υ(x)d x.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	180-190
Sayfa sayısı	11
Dergi	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Hacim	420
Basın numarası	1-2
DOI'lar	https://doi.org/10.1016/S0370-2693(97)01546-3
Yayın durumu	Yayınlandı - 19 Şub 1998

Belgeye Erişim

10.1016/S0370-2693(97)01546-3

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

Adeva, B., Akdogan, T., Arik, E., Arvidson, A., Badelek, B., Bardin, G., Baum, G., Berglund, P., Betev, L., Birsa, R., de Botton, N., Bradamante, F., Bravar, A., Bressan, A., Bültmann, S., Burtin, E., Crabb, D., Cranshaw, J., Çuhadar, T., ... Zhao, J. (1998). Polarised quark distributions in the nucleon from semi-inclusive spin asymmetries. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 420(1-2), 180-190. https://doi.org/10.1016/S0370-2693(97)01546-3

@article{d1186700a79e4386a7cf837cb49b6868,

title = "Polarised quark distributions 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 and Q2 > 1 GeV2. Compared to our previous publication on this subject, with the new data the statistical errors have been reduced by nearly a factor of two. From these asymmetries and our inclusive spin asymmetries we determine the polarised quark distributions of valence quarks and non-strange sea quarks at Q2 = 10 GeV2. The polarised u valence quark distribution, Δuυ(×), is positive and the polarisation increases with x. The polarised d valence quark distribution, Δdυ(x), is negative and the non-strange sea distribution, Δq-(x), is consistent with zero over the measured range of x. We find for the first moments (latin small letter esh)10Δuυ(x)d x = 0.77 ± 0.10 ± 0.08, (latin small letter esh)10Δdυ(x)d x = -0.52 ± 0.14 ± 0.09 and (latin small letter esh)10Δq-(x)d x = 0.01 ± 0.04 ± 0.03, where we assumed Δu-(x) = Δd-(x). We also determine for the first time the second moments of the valence distributions (latin small letter esh)10xΔqυ(x)d x.",

author = "B. Adeva and T. Akdogan and E. Arik and A. Arvidson and B. Badelek and G. Bardin and G. Baum and P. Berglund and L. Betev and R. Birsa and {de Botton}, N. and F. Bradamante and A. Bravar and A. Bressan and S. B{\"u}ltmann and E. Burtin and D. Crabb and J. Cranshaw and T. {\c C}uhadar and {Dalla Torre}, S. and {van Dantzig}, R. and B. Derro and A. Deshpande and S. Dhawan and C. Dulya and S. Eichblatt and D. Fasching and F. Feinstein and C. Fernandez and S. Forthmann and B. Frois and A. Gallas and Garzon, {J. A.} and H. Gilly and M. Giorgi and {von Goeler}, E. and S. Goertz and G. Gracia and {de Groot}, N. and {Grosse Perdekamp}, M. and K. Haft 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 J. Kiryluk and Y. Kisselev and D. Kr{\"a}mer and V. Krivokhijine and W. Kr{\"o}ger and V. Kukhtin and K. Kurek and J. Kyyn{\"a}r{\"a}inen and M. Lamanna and U. Landgraf and {Le Goff}, {J. M.} and F. Lehar and {de Lesquen}, A. and J. Lichtenstadt and M. Litmaath 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 W. Meyer and {van Middelkoop}, G. and D. Miller and Y. Miyachi and K. Mori and J. Moromisato and J. Nassalski and L. Naumann and Niinikoski, {T. O.} and Oberski, {J. E.J.} and A. Ogawa and C. Ozben and H. Pereira and F. Perrot-Kunne and D. Peshekhonov and L. Pinsky and S. Platchkov and M. Plo and D. Pose and H. Postma and J. Pretz and R. Puntaferro and G. R{\"a}del and A. Rijllart and G. Reicherz and J. Roberts and M. Rodriguez and E. Rondio and B. Roscherr and I. Sabo and J. Saborido and A. Sandacz and I. Savin and P. Schiavon and A. Schiller and Sichtermann, {E. P.} and F. Simeoni and Smirnov, {G. I.} and A. Staude and A. Steinmetz and U. Stiegler and H. Stuhrmann and M. Szleper and F. Tessarotto and D. Thers and W. Tlaczala and A. Tripet and G. Unel and M. Velasco and J. Vogt and R. Voss and C. Whitten and R. Windmolders and R. Willumeit and W. Wislicki and A. Witzmann and J. Yl{\"o}stalo and Zanetti, {A. M.} and K. Zaremba and J. Zhao",

year = "1998",

month = feb,

day = "19",

doi = "10.1016/S0370-2693(97)01546-3",

language = "English",

volume = "420",

pages = "180--190",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Adeva, B, Akdogan, T, Arik, E, Arvidson, A, Badelek, B, Bardin, G, Baum, G, Berglund, P, Betev, L, Birsa, R, de Botton, N, Bradamante, F, Bravar, A, Bressan, A, Bültmann, S, Burtin, E, Crabb, D, Cranshaw, J, Çuhadar, T, Dalla Torre, S, van Dantzig, R, Derro, B, Deshpande, A, Dhawan, S, Dulya, C, Eichblatt, S, Fasching, D, Feinstein, F, Fernandez, C, Forthmann, S, Frois, B, Gallas, A, Garzon, JA, Gilly, H, Giorgi, M, von Goeler, E, Goertz, S, Gracia, G, de Groot, N, Grosse Perdekamp, M, Haft, K, 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, Kiryluk, J, Kisselev, Y, Krämer, D, Krivokhijine, V, Kröger, W, Kukhtin, V, Kurek, K, Kyynäräinen, J, Lamanna, M, Landgraf, U, Le Goff, JM, Lehar, F, de Lesquen, A, Lichtenstadt, J, Litmaath, M, Magnon, A, Mallot, GK, Marie, F, Martin, A, Martino, J, Matsuda, T, Mayes, B, McCarthy, JS, Medved, K, Meyer, W, van Middelkoop, G, Miller, D, Miyachi, Y, Mori, K, Moromisato, J, Nassalski, J, Naumann, L, Niinikoski, TO, Oberski, JEJ, Ogawa, A, Ozben, C, Pereira, H, Perrot-Kunne, F, Peshekhonov, D, Pinsky, L, Platchkov, S, Plo, M, Pose, D, Postma, H, Pretz, J, Puntaferro, R, Rädel, G, Rijllart, A, Reicherz, G, Roberts, J, Rodriguez, M, Rondio, E, Roscherr, B, Sabo, I, Saborido, J, Sandacz, A, Savin, I, Schiavon, P, Schiller, A, Sichtermann, EP, Simeoni, F, Smirnov, GI, Staude, A, Steinmetz, A, Stiegler, U, Stuhrmann, H, Szleper, M, Tessarotto, F, Thers, D, Tlaczala, W, Tripet, A, Unel, G, Velasco, M, Vogt, J, Voss, R, Whitten, C, Windmolders, R, Willumeit, R, Wislicki, W, Witzmann, A, Ylöstalo, J, Zanetti, AM, Zaremba, K & Zhao, J 1998, 'Polarised quark distributions in the nucleon from semi-inclusive spin asymmetries', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, hac. 420, no. 1-2, pp. 180-190. https://doi.org/10.1016/S0370-2693(97)01546-3

TY - JOUR

T1 - Polarised quark distributions in the nucleon from semi-inclusive spin asymmetries

AU - Adeva, B.

AU - Akdogan, T.

AU - Arik, E.

AU - Arvidson, A.

AU - Badelek, B.

AU - Bardin, G.

AU - Baum, G.

AU - Berglund, P.

AU - Betev, L.

AU - Birsa, R.

AU - de Botton, N.

AU - Bradamante, F.

AU - Bravar, A.

AU - Bressan, A.

AU - Bültmann, S.

AU - Burtin, E.

AU - Crabb, D.

AU - Cranshaw, J.

AU - Çuhadar, T.

AU - Dalla Torre, S.

AU - van Dantzig, R.

AU - Derro, B.

AU - Deshpande, A.

AU - Dhawan, S.

AU - Dulya, C.

AU - Eichblatt, S.

AU - Fasching, D.

AU - Feinstein, F.

AU - Fernandez, C.

AU - Forthmann, S.

AU - Frois, B.

AU - Gallas, A.

AU - Garzon, J. A.

AU - Gilly, H.

AU - Giorgi, M.

AU - von Goeler, E.

AU - Goertz, S.

AU - Gracia, G.

AU - de Groot, N.

AU - Grosse Perdekamp, M.

AU - Haft, K.

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 - Kiryluk, J.

AU - Kisselev, Y.

AU - Krämer, D.

AU - Krivokhijine, V.

AU - Kröger, W.

AU - Kukhtin, V.

AU - Kurek, K.

AU - Kyynäräinen, J.

AU - Lamanna, M.

AU - Landgraf, U.

AU - Le Goff, J. M.

AU - Lehar, F.

AU - de Lesquen, A.

AU - Lichtenstadt, J.

AU - Litmaath, 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 - Meyer, W.

AU - van Middelkoop, G.

AU - Miller, D.

AU - Miyachi, Y.

AU - Mori, K.

AU - Moromisato, J.

AU - Nassalski, J.

AU - Naumann, L.

AU - Niinikoski, T. O.

AU - Oberski, J. E.J.

AU - Ogawa, A.

AU - Ozben, C.

AU - Pereira, H.

AU - Perrot-Kunne, F.

AU - Peshekhonov, D.

AU - Pinsky, L.

AU - Platchkov, S.

AU - Plo, M.

AU - Pose, D.

AU - Postma, H.

AU - Pretz, J.

AU - Puntaferro, R.

AU - Rädel, G.

AU - Rijllart, A.

AU - Reicherz, G.

AU - Roberts, J.

AU - Rodriguez, M.

AU - Rondio, E.

AU - Roscherr, B.

AU - Sabo, I.

AU - Saborido, J.

AU - Sandacz, A.

AU - Savin, I.

AU - Schiavon, P.

AU - Schiller, A.

AU - Sichtermann, E. P.

AU - Simeoni, F.

AU - Smirnov, G. I.

AU - Staude, A.

AU - Steinmetz, A.

AU - Stiegler, U.

AU - Stuhrmann, H.

AU - Szleper, M.

AU - Tessarotto, F.

AU - Thers, D.

AU - Tlaczala, W.

AU - Tripet, A.

AU - Unel, G.

AU - Velasco, M.

AU - Vogt, J.

AU - Voss, R.

AU - Whitten, C.

AU - Windmolders, R.

AU - Willumeit, R.

AU - Wislicki, W.

AU - Witzmann, A.

AU - Ylöstalo, J.

AU - Zanetti, A. M.

AU - Zaremba, K.

AU - Zhao, J.

PY - 1998/2/19

Y1 - 1998/2/19

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 and Q2 > 1 GeV2. Compared to our previous publication on this subject, with the new data the statistical errors have been reduced by nearly a factor of two. From these asymmetries and our inclusive spin asymmetries we determine the polarised quark distributions of valence quarks and non-strange sea quarks at Q2 = 10 GeV2. The polarised u valence quark distribution, Δuυ(×), is positive and the polarisation increases with x. The polarised d valence quark distribution, Δdυ(x), is negative and the non-strange sea distribution, Δq-(x), is consistent with zero over the measured range of x. We find for the first moments (latin small letter esh)10Δuυ(x)d x = 0.77 ± 0.10 ± 0.08, (latin small letter esh)10Δdυ(x)d x = -0.52 ± 0.14 ± 0.09 and (latin small letter esh)10Δq-(x)d x = 0.01 ± 0.04 ± 0.03, where we assumed Δu-(x) = Δd-(x). We also determine for the first time the second moments of the valence distributions (latin small letter esh)10xΔqυ(x)d x.

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 and Q2 > 1 GeV2. Compared to our previous publication on this subject, with the new data the statistical errors have been reduced by nearly a factor of two. From these asymmetries and our inclusive spin asymmetries we determine the polarised quark distributions of valence quarks and non-strange sea quarks at Q2 = 10 GeV2. The polarised u valence quark distribution, Δuυ(×), is positive and the polarisation increases with x. The polarised d valence quark distribution, Δdυ(x), is negative and the non-strange sea distribution, Δq-(x), is consistent with zero over the measured range of x. We find for the first moments (latin small letter esh)10Δuυ(x)d x = 0.77 ± 0.10 ± 0.08, (latin small letter esh)10Δdυ(x)d x = -0.52 ± 0.14 ± 0.09 and (latin small letter esh)10Δq-(x)d x = 0.01 ± 0.04 ± 0.03, where we assumed Δu-(x) = Δd-(x). We also determine for the first time the second moments of the valence distributions (latin small letter esh)10xΔqυ(x)d x.

UR - http://www.scopus.com/inward/record.url?scp=0346459575&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(97)01546-3

DO - 10.1016/S0370-2693(97)01546-3

M3 - Article

AN - SCOPUS:0346459575

SN - 0370-2693

VL - 420

SP - 180

EP - 190

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Polarised quark distributions in the nucleon from semi-inclusive spin asymmetries

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