High-energy proton-proton forward scattering and derivative analyticity relations
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2001
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| _version_ | 1876460174788526080 |
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| author | R. F. Ávila |
| author_facet | R. F. Ávila |
| contents | High-energy proton-proton forward scattering and derivative analyticity relations R. F. Ávila E. G. S. Luna M. J. Menon Física, Astronomía y Matemáticas We present the results of several parametrizations to two di erent ensemble of data on pp total cross sections (pp tot ) at the highest center-of-mass energies (including cosmic-ray information). The results are statistically consistent with two distinct scenarios at high energies. From one ensemble the prediction for the LHC (ps = 14 TeV) is pp tot = 113+5 mb and from the other, pp tot = 140+7 mb. From each parametrization, and making use of derivative analyticity relations (DAR), we determine p(s) (ratio between the forward real and imaginary parts of the elastic scattering amplitude). A discussion on the optimization of the DAR in terms of a free parameter is also presented. In all cases good descriptions of the experimental data are obtained. 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413504007 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.31 |
| format | Artículo científico |
| id | redalyc_46413504007 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | High-energy proton-proton forward scattering and derivative analyticity relations R. F. Ávila Física, Astronomía y Matemáticas High-energy proton-proton forward scattering and derivative analyticity relations R. F. Ávila E. G. S. Luna M. J. Menon Física, Astronomía y Matemáticas We present the results of several parametrizations to two di erent ensemble of data on pp total cross sections (pp tot ) at the highest center-of-mass energies (including cosmic-ray information). The results are statistically consistent with two distinct scenarios at high energies. From one ensemble the prediction for the LHC (ps = 14 TeV) is pp tot = 113+5 mb and from the other, pp tot = 140+7 mb. From each parametrization, and making use of derivative analyticity relations (DAR), we determine p(s) (ratio between the forward real and imaginary parts of the elastic scattering amplitude). A discussion on the optimization of the DAR in terms of a free parameter is also presented. In all cases good descriptions of the experimental data are obtained. 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413504007 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.31 |
| title | High-energy proton-proton forward scattering and derivative analyticity relations |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46413504007 |