Abstract
We have measured the spin-dependent structure function g1 p of the proton in deep inelastic scattering of polarized muons off polarized protons, in the kinematic range 0.003 < x < 0.7 and 1 GeV2 < Q2 < 60 GeV2. Its first moment, ∫0 1 g1 p(x)dx, is found to be 0.136±0.011 (stat.)± 0.011 (syst.) at Q2 = 10GeV2. This value is smaller than the prediction of the Ellis-Jaffe sum rule by two standard deviations, and is consistent with previous measurements. A combined analysis of all available proton, deuteron and neutron data confirms the Bjorken sum rule to within 10% of the theoretical value.
| Original language | English |
|---|---|
| Pages (from-to) | 399-406 |
| Journal | Physics Letters B |
| Volume | 329 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - 16 Jun 1994 |
| MoE publication type | A1 Journal article-refereed |
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Measurement of the spin-dependent structure function g1(x) of the proton. / Adams, D.; 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.; Brüll, A.; Bültmann, S.; Burtin, E.; Cavata, C.; Clocchiatti, M.; Corcoran, M. D.; Crabb, D.; Cranshaw, J.; Crawford, M.; Çuhadar, T.; Dalla Torre, S.; van Dantzig, R.; Dhawan, S.; Dulya, C.; Dyring, A.; Eichblatt, S.; Faivre, J. C.; Fasching, D.; Feinstein, F.; Fernandez, C.; Frois, B.; Garzon, J. A.; Gaussiran, T.; Giorgi, M.; von Goeler, E.; Gracia, G.; de Groot, N.; Grosse Perdekamp, M.; Gülmez, E.; von Harrach, D.; Hasegawa, T.; Hautle, P.; Hayashi, N.; Heusch, C. A.; Horikawa, N.; Hughes, V. W.; Igo, G.; Ishimoto, S.; Iwata, T.; Kabuß, E. M.; Kaiser, R.; Karev, A.; Kessler, H. J.; Ketel, T. J.; Kishi, A.; Kisselev, Yu; Klostermann, L.; Krämer, D.; Krivokhijine, V.; Kukhtin, V.; Kyynäräinen, Jukka; Lamanna, M.; Landgraf, U.; Lau, K.; Layda, T.; Le Goff, M. J.; Lehar, F.; de Lesquen, A.; Lichtenstadt, J.; Lindqvist, T.; Litmaath, M.; Lopez-Ponte, S.; Lowe, M.; Magnon, A.; Mallot, G. K.; Marie, F.; Martin, A.; Martino, J.; Matsuda, T.; Meyes, B.; McCarthy, J. S.; Medved, K.; van Middelkoop, G.; Miller, D.; Mori, K.; Moromisato, J.; Nagaitsev, A.; Nassalski, J.; Naumann, L.; Niinikoski, T. O.; Oberski, J. E.J.; Parks, D. P.; Penzo, A.; Perez, C.; Perrot-Kunne, F.; Peshekhonov, D.; Piegaia, R.; Pinsky, L.; Platchkov, S.; Plo, M.; Pose, D.; Postma, H.; Pretz, J.; Pussieux, T.; Pyrlik, J.; Reyhancan, I.; Rieubland, J. M.; Rijllart, A.; Roberts, J. B.; Rock, S.; Rodriguez, M.; Rondio, E.; Rosado, A.; Sabo, I.; Saborido, J.; Sandacz, A.; Savin, I.; Schiavon, P.; Schüler, K. P.; Segel, R.; Seitz, R.; Semertzidis, Y.; Sever, F.; Shanahan, P.; Shumeiko, N.; Smirnov, G.; Staude, A.; Steinmetz, A.; Stiegler, U.; Stuhrmann, H.; Teichert, K. M.; Tessarotto, F.; Velasco, M.; Vogt, J.; Voss, R.; Weinstein, R.; Whitten, C.; Windmolders, R.; Willumeit, R.; Wiślicki, W.; Witzmann, A.; Zanetti, A. M.; Zhao, J.
In: Physics Letters B, Vol. 329, No. 2-3, 16.06.1994, p. 399-406.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Measurement of the spin-dependent structure function g1(x) of the proton
AU - Adams, D.
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 - Brüll, A.
AU - Bültmann, S.
AU - Burtin, E.
AU - Cavata, C.
AU - Clocchiatti, M.
AU - Corcoran, M. D.
AU - Crabb, D.
AU - Cranshaw, J.
AU - Crawford, M.
AU - Çuhadar, T.
AU - Dalla Torre, S.
AU - van Dantzig, R.
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 - 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 - Kaiser, R.
AU - Karev, A.
AU - Kessler, H. J.
AU - Ketel, T. J.
AU - Kishi, A.
AU - Kisselev, Yu
AU - Klostermann, L.
AU - Krämer, D.
AU - Krivokhijine, V.
AU - Kukhtin, V.
AU - Kyynäräinen, Jukka
AU - Lamanna, M.
AU - Landgraf, U.
AU - Lau, K.
AU - Layda, T.
AU - Le Goff, M. J.
AU - Lehar, F.
AU - de Lesquen, A.
AU - Lichtenstadt, J.
AU - Lindqvist, T.
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 - Meyes, 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 - Parks, D. P.
AU - Penzo, A.
AU - Perez, C.
AU - Perrot-Kunne, F.
AU - Peshekhonov, D.
AU - Piegaia, R.
AU - Pinsky, L.
AU - Platchkov, S.
AU - Plo, M.
AU - Pose, D.
AU - Postma, H.
AU - Pretz, J.
AU - Pussieux, T.
AU - Pyrlik, J.
AU - Reyhancan, I.
AU - Rieubland, J. M.
AU - Rijllart, A.
AU - Roberts, J. B.
AU - Rock, S.
AU - Rodriguez, M.
AU - Rondio, E.
AU - Rosado, A.
AU - Sabo, I.
AU - Saborido, J.
AU - Sandacz, A.
AU - Savin, I.
AU - Schiavon, P.
AU - Schüler, K. P.
AU - Segel, R.
AU - Seitz, R.
AU - Semertzidis, Y.
AU - Sever, F.
AU - Shanahan, P.
AU - Shumeiko, N.
AU - Smirnov, G.
AU - Staude, A.
AU - Steinmetz, A.
AU - Stiegler, U.
AU - Stuhrmann, H.
AU - Teichert, K. M.
AU - Tessarotto, F.
AU - Velasco, M.
AU - Vogt, J.
AU - Voss, R.
AU - Weinstein, R.
AU - Whitten, C.
AU - Windmolders, R.
AU - Willumeit, R.
AU - Wiślicki, W.
AU - Witzmann, A.
AU - Zanetti, A. M.
AU - Zhao, J.
N1 - Funding Information: i Now at CERN, 1211 Geneva 23, Switzerland 2 Now at University of Montreal, PQ, H3C 3J7, Montreal, Canada 3 Now at Max Planck Institute, Heidelberg, Germany 4 Permanent address: Paul Scherrer Institut, 5232 Villigen, Switzerland 5 Permanent address: Miyazaki University, 88921 Miyazaki-Shi, Japan 6 Permanent address: KEK, 305 Ibaraki-Ken, Japan 7 Permanent address: University of Buenos Aires, Physics Department, 1428 Buenos Aires, Argentina 8 Now at SSC Laboratory, Dallas, 75237 TX, USA 9 Permanent address: The American University, Washington D.C. 20016, USA. lO Present address: ESFR, F-38043 Grenoble, France. ll Supported by Bundesministerium fiir Forschung und Technologie 12 Supported by the Department of Energy 13 Supported by the National Science Foundation 14 Supported by lshida Foundation, Mitsubishi Foundation and Funding Information: The spin dependent structure functions of the nucleon, gl and g2, can be measured in polarized deep inelastic lepton-nucleon scattering \[ 1 \]. Measurements of gl for the proton and the neutron allow us to test a fundamental QCD sum rule, derived by Bjorken \[2\], and to study the internal spin structure of the nucleon. Ellis and Jaffe \[3\] have derived sum rules for the pro- Monbusho International Science Research Program 15 Supported by the National Science Foundation (NWO) of the Netherlands 16 Supported by Comision Interministerial de Ciencia y Tecnologia 17 Supported by the US-Israel Binational Science Foundation, Jerusalem, Israel and The Israeli Academy of Sciences 18 Supported by KBN grant nr. 20958-9101 19 Permanent address: Belarussian State University, Minsk, Belarus. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1994/6/16
Y1 - 1994/6/16
N2 - We have measured the spin-dependent structure function g1 p of the proton in deep inelastic scattering of polarized muons off polarized protons, in the kinematic range 0.003 < x < 0.7 and 1 GeV2 < Q2 < 60 GeV2. Its first moment, ∫0 1 g1 p(x)dx, is found to be 0.136±0.011 (stat.)± 0.011 (syst.) at Q2 = 10GeV2. This value is smaller than the prediction of the Ellis-Jaffe sum rule by two standard deviations, and is consistent with previous measurements. A combined analysis of all available proton, deuteron and neutron data confirms the Bjorken sum rule to within 10% of the theoretical value.
AB - We have measured the spin-dependent structure function g1 p of the proton in deep inelastic scattering of polarized muons off polarized protons, in the kinematic range 0.003 < x < 0.7 and 1 GeV2 < Q2 < 60 GeV2. Its first moment, ∫0 1 g1 p(x)dx, is found to be 0.136±0.011 (stat.)± 0.011 (syst.) at Q2 = 10GeV2. This value is smaller than the prediction of the Ellis-Jaffe sum rule by two standard deviations, and is consistent with previous measurements. A combined analysis of all available proton, deuteron and neutron data confirms the Bjorken sum rule to within 10% of the theoretical value.
UR - http://www.scopus.com/inward/record.url?scp=0009423346&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(94)90793-5
DO - 10.1016/0370-2693(94)90793-5
M3 - Article
AN - SCOPUS:0009423346
VL - 329
SP - 399
EP - 406
JO - Physics Letters Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 2-3
ER -