The spin-dependent structure function g1(x) of the proton from polarized deep-inelastic muon scattering

Autor: Michal Szleper, D. Crabb, Heinrich B. Stuhrmann, A. Schiller, Naoaki Horikawa, J. Pretz, A. Rijllart, Bernardo Adeva, T. Kageya, J. Ylöstalo, A. Ogawa, L. Naumann, C. Dulya, I. Sabo, C. A. Whitten, J. Kyynäräinen, A. Tripet, D. Peshekhonov, F. Lehar, V. W. Hughes, G. Gracia, P. Schiavon, A. Sandacz, M. Giorgi, V. G. Krivokhijine, B. Mayes, Rudiger Voss, Yu. Kisselev, S. K. Dhawan, B. Derro, J. S. McCarthy, S. Bültmann, T. O. Niinikoski, Ulrich Landgraf, E. Arik, Alan D. Martin, F. Marie, A. Staude, M. Litmaath, Etienne Burtin, David Miller, Matias Rodriguez, Kunikazu Mori, J. Moromisato, A. Magnon, D. Thers, E. P. Sichtermann, K. Kurek, E. M. Kabuß, E. Rondio, D. Pose, Abhay Deshpande, K. Zaremba, I.A. Savin, T. J. Ketel, M. Plo, F. Feinstein, A. Karev, Matthias Grosse Perdekamp, G. Bardin, A. Witzmann, Patrick Hautle, J. M. Le Goff, G. Igo, J. Kiryluk, Clemens A. Heusch, T. Çuhadar, S. Platchkov, J. Lichtenstadt, R. Birsa, J. A. Garzon, Franco Bradamante, W. Wislicki, A. Steinmetz, P. Berglund, K. Medved, N. De Groot, Anna Zanetti, H. Postma, B. Frois, J. Saborido, W. Tlaczala, B. Roscherr, Lawrence Pinsky, T. Matsuda, S. Ishimoto, U. Stiegler, H. Gilly, G. Unel, F. Simeoni, G.I. Smirnov, R. van Dantzig, R. Puntaferro, J. E.J. Oberski, J. Nassalski, G. van Middelkoop, G. Rädel, W. Meyer, B. Badelek, C. Fernandez, Mayda Velasco, N. Hayashi, L. Betev, F. Perrot-Kunne, S. Eichblatt, A. Bravar, V. Kuktin, J. Cranshaw, D. Fasching, J. Vogt, G. Baum, Takahiro Iwata, G. Reicherz, Roland Windmolders, S. Dalla Torre, A. Arvidson, H. Pereira, A. de Lesquen, St. Goertz, N. de Botton, Andrea Bressan, J. Martino, A. Gallas, G. K. Mallot, Y. Miyachi, M. Lamanna, S. Forthmann, K. Haft, F. Tessarotto, W. Kröger
Přispěvatelé: B., Adeva, E., Arik, A., Arvidson, B., Badelek, G., Bardin, G., Baum, P., Berglund, L., Betev, Birsa, Renato, N., de Botton, Bradamante, Franco, A., Bravar, Bressan, Andrea, S., Bültmann, E., Burtin, D., Crabb, J., Cranshaw, T., Çuhadar, DALLA TORRE, Silvia, R., van Dantzig, B., Derro, A., Deshpande, S., Dhawan, C., Dulya, S., Eichblatt, D., Fasching, F., Feinstein, C., Fernandez, S., Forthmann, B., Froi, A., Galla, J. A., Garzon, H., Gilly, Giorgi, Marcello, S., Goertz, G., Gracia, N., de Groot, K., Haft, D., von Harrach, T., Hasegawa, P., Hautle, N., Hayashi, C. A., Heusch, N., Horikawa, V. W., Hughe, G., Igo, S., Ishimoto, T., Iwata, E. M., Kabuß, T., Kageya, A., Karev, T. J., Ketel, J., Kiryluk, Kisselev, Y. u., V., Krivokhijine, W., Kröger, V., Kuktin, 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, Martin, Anna, J., Martino, T., Matsuda, B., Maye, 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, M., Perdekamp, 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, M., Rodriguez, E., Rondio, B., Roscherr, I., Sabo, J., Saborido, A., Sandacz, I., Savin, Schiavon, Paolo, A., Schiller, E. P., Sichtermann, F., Simeoni, G. I., Smirnov, A., Staude, A., Steinmetz, U., Stiegler, H., Stuhrmann, M., Szleper, F., Tessarotto, D., Ther, W., Tlaczala, A., Tripet, G., Unel, M., Velasco, J., Vogt, R., Vo, C., Whitten, R., Windmolder, W., Wislicki, A., Witzmann, J., Ylöstalo, Zanetti, ANNA MARIA, K., Zaremba, (Astro)-Particles Physics
Rok vydání: 1997
Předmět:
Zdroj: Ballintijn, M K, Cuhadar, T, Ketel, T J, van Middelkoop, G, Pretz, J & Sichterman, E P 1997, ' The Spin-Dependent Structure Function g1(x) of the Proton from Polarized Deep-Inelastic Muon Scattering. ', Physics Letters B, vol. 412, pp. 414 . https://doi.org/10.1016/S0370-2693(97)01106-4
Physics Letters B, 412. Elsevier
Adeva, B, 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, J A, Gilly, H, Giorgi, M, Goertz, S, Gracia, G, de Groot, N, Haft, K, Hautle, P, Hayashi, N, Heusch, C A, Horikawa, N, Hughes, V W, Igo, G, Ishimoto, S, Iwata, T, Kabuß, E M, Kageya, T, Karev, A, Ketel, T J, Kiryluk, J, Kisselev, Y, Krivokhijine, V, Kröger, W, Kuktin, V, Kurek, K, Kyynäräinen, J, Lamanna, M, Landgraf, U, Le Goff, J M, Lehar, F, de Lesquen, A, Lichtenstadt, J, Litmaath, M, Magnon, A, Mallot, G K, Marie, F, Martin, A, Martino, J, Matsuda, T, Mayes, B, McCarthy, J S, Medved, K, Meyer, W, van Middelkoop, G, Miller, D, Miyachi, Y, Mori, K, Moromisato, J, Nassalski, J, Naumann, L, Niinikoski, T O, Oberski, J E J, Ogawa, A, Perdekamp, M, 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, Rodriguez, M & Rondio, E 1997, ' The spin-dependent structure function g1(x) of the proton from polarized deep-inelastic muon scattering ', Physics Letters Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 412, no. 3-4, pp. 414-424 . https://doi.org/10.1016/S0370-2693(97)01106-4
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)01106-4
Popis: We present a new measurement of the virtual photon proton asymmetry $A_1^{\rm p}$ from deep inelastic scattering of polarized muons on polarized protons in the kinematic range $0.0008 < x < 0.7$ and $0.2 < Q^{2} < 100$ GeV$^{2}$. With this, the statistical uncertainty of our measurement has improved by a factor of $2$ compared to our previous measurements. The spin-dependent structure function $g_{1}^{\rm p}$ is determined for the data with $Q^{2} > 1$ GeV$^{2}$. A perturbative QCD evolution in next-to-leading order is used to determine $g_1^{\rm p}(x)$ at a constant $Q^2$. At $Q^{2} = 10$ GeV$^{2}$ we find, in the measured range, $\int_{0.003}^{0.7} g_{1}^{\rm p}(x){\rm d}x = 0.139 \pm 0.006~({\rm stat})\pm 0.008~({\rm syst)} \pm 0.006~({\rm evol})$. The value of the first moment $\Gamma_{1}^{\rm p} = \int_{0}^{1} g_{1}^{\rm p}(x){\rm d}x$ of $g_{1}^{\rm p}$ depends on the approach used to describe the behaviour of $g_{1}^{\rm p}$ at low $x$. We find that the Ellis-Jaffe sum rule is violated. With our published result for $\Gamma_{1}^{\rm d}$ we confirm the Bjorken sum rule with an accuracy of $\approx 15\%$ at the one standard deviation level.
Databáze: OpenAIRE
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