Abstract:
We present results on the quark and gluon polarization in the nucleon obtained in a combined next to leading order analysis to the available inclusive and semi-inclusive polarized deep inelastic scattering data. Using the Lagrange multiplier method, we asses the uncertainty inherent to the extraction of the different spin dependent parton densities in a QCD global fit, and the impact of the increased set of semi-inclusive data now available.
Registro:
Documento: |
Artículo
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Título: | Sea quark and gluon polarization in the nucleon |
Autor: | De Florian, D.; Navarro, G.A.; Sassot, R. |
Filiación: | Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, Pab.1 (1428) Buenos Aires, Argentina
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Palabras clave: | Perturbative QCD; Semi-inclusive DIS |
Año: | 2007
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Volumen: | 37
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Número: | 2 B
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Página de inicio: | 538
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Página de fin: | 544
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Título revista: | Brazilian Journal of Physics
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Título revista abreviado: | Braz. J. Phys.
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ISSN: | 01039733
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v37_n2B_p538_DeFlorian |
Referencias:
- Adeva, B., SMC Collab (1996) Phys. Lett. B, 369, p. 93
- ibid. 420, 180 (1998); HERMES Collab., A. Airapetian, et al. hep-ex/0407032; K. Ackerstaff et al, Phys. Lett. B 464, 123 (1999); Bressan, A., for the COMPASS Collaboration, hep-ex/0501040; Jiang, X., Jefferson Lab experiment E04-113: Semi-Inclusive Spin Asymmetries on the Nucleon Experiment, , hep-ex/0412010
- de Florian, D., Sampayo, O.A., Sassot, R., (1998) Phys. Rev. D, 57, p. 5803
- de Florian, D., Sassot, R., (2000) Phys. Rev. D, 62, p. 094025
- G. A. Navarro and R. Sassot, Eur. Phys. J. C 28, 321 (2003) [arXiv:hep-ph/0302053]; de Florian, D., Navarro, G.A., Sassot, R., (2005) Phys. Rev. D, 71, p. 094018
- Pumplin, J., Stump, D.R., Tung, W.K., (2002) Phys. Rev. D, 65, p. 014011
- Stump, D., (2003) Eur. Phys. J. C, 28, p. 321
- Martin, A.D., Roberts, R.G., Stirling, W.J., Thorne, R.S., (2003) Eur. Phys. J. C, 28, p. 455
- Mertig, R., van Neerven, W.L., (1996) Z. Phys. C, 70, p. 637
- Vogelsang, W., (1996) Phys. Rev. D, 54, p. 2023
- Lampe, B., Reya, E., (2000) Phys. Rep, 332, p. 1
- Leader, E., (1995) Phys, Rep, 261, p. 1
- de Florian, D., Garcia Canal, C.A., Sassot, R., (1996) Nucl. Phys. B, 470, p. 195
- Kretzer, S., (2000) Phys. Rev. D, 62, p. 054001
- Kniehl, B.A., Kramer, G., Potter, B., (2000) Nucl. Phys. B, 582, p. 514
- Ashman, J., (1989) Nucl. Phys. B, 328, p. 1. , EMC Collaboration
- Adeva, B., (1998) Phys. Rev. D, 58, p. 112001. , SMC Collaboration
- E143 Collaboration, K. Abe et al, Phys. Rev. D 58, 112003 1998; E155 Collaboration, P. L. Anthony, et al, Phys. Lett. B 463, 339 (1999);; Mitchell, G.S., (1999), Ph.D. Thesis University of Wisconsin-Madison, SLAC-Report-540; E142 Collaboration, P. L. Anthony, et al, Phys. Rev. D 54, 6620 1996; E154 Collaboration, K. Abe et al, Phys. Rev. Lett. 79, 26 (1997);; (1997) Phys. Lett. B, 405, p. 180
- HALL A Collaboration X. Zheng, et al, nucl-ex/0405006; S. S. Adler et al. [PHENIX Collaboration], Phys. Rev. Lett. 93, 202002 (2004) [arXiv:hep-ex/0404027]; Fukao, Y., PHENIX Collaboration] hep-ex/0501049; Jiang, X., Navarro, G.A., Sassot, R., (2006) Eur. Phys J. C, 47, p. 81
Citas:
---------- APA ----------
De Florian, D., Navarro, G.A. & Sassot, R.
(2007)
. Sea quark and gluon polarization in the nucleon. Brazilian Journal of Physics, 37(2 B), 538-544.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v37_n2B_p538_DeFlorian [ ]
---------- CHICAGO ----------
De Florian, D., Navarro, G.A., Sassot, R.
"Sea quark and gluon polarization in the nucleon"
. Brazilian Journal of Physics 37, no. 2 B
(2007) : 538-544.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v37_n2B_p538_DeFlorian [ ]
---------- MLA ----------
De Florian, D., Navarro, G.A., Sassot, R.
"Sea quark and gluon polarization in the nucleon"
. Brazilian Journal of Physics, vol. 37, no. 2 B, 2007, pp. 538-544.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v37_n2B_p538_DeFlorian [ ]
---------- VANCOUVER ----------
De Florian, D., Navarro, G.A., Sassot, R. Sea quark and gluon polarization in the nucleon. Braz. J. Phys. 2007;37(2 B):538-544.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v37_n2B_p538_DeFlorian [ ]