Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/45156
Título: | Measurement of the total cross section from elastic scattering in pp collisions at s=8 TeV with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Data: | 2016 |
Editora: | Elsevier 1 |
Revista: | Physics Letters B |
Citação: | Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., . . . Zwalinski, L. (2016). Measurement of the total cross section from elastic scattering in pp collisions at s=8 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 761, 158-178. doi: 10.1016/j.physletb.2016.08.020 |
Resumo(s): | A measurement of the total pp cross section at the LHC at s√=8 TeV is presented. An integrated luminosity of 500 μb−1 was accumulated in a special run with high-β⋆ beam optics to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t. The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the differential elastic cross section in the −t range from 0.014 GeV2 to 0.1 GeV2 to extrapolate t→0, the total cross section, σtot(pp→X), is measured via the optical theorem to be σtot(pp→X)=96.07±0.18(stat.)±0.85(exp.)±0.31(extr.)mb, Turn MathJax off where the first error is statistical, the second accounts for all experimental systematic uncertainties and the last is related to uncertainties in the extrapolation t→0. In addition, the slope of the exponential function describing the elastic cross section at small t is determined to be B=19.74±0.05(stat.)±0.23(syst.)GeV−2. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/45156 |
DOI: | 10.1016/j.physletb.2016.08.020 |
ISSN: | 0370-2693 |
e-ISSN: | 1873-2445 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S0370269316304403-main.pdf | 1,49 MB | Adobe PDF | Ver/Abrir |