Forward elastic scattering: dynamical gluon mass and semihard interactions
| العنوان: | Forward elastic scattering: dynamical gluon mass and semihard interactions |
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| المؤلفون: | D. A. Fagundes, M. Broilo, Márcio José Menon, E. G. S. Luna |
| المصدر: | European Physical Journal European Physical Journal C: Particles and Fields, Vol 79, Iss 12, Pp 1-15 (2019) Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Particle physics, Physics and Astronomy (miscellaneous), Forward scatter, Cromodinâmica quântica, FOS: Physical sciences, lcsh:Astrophysics, Parton, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), lcsh:QB460-466, Altas energias, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Engineering (miscellaneous), Elastic scattering, Physics, Quantum chromodynamics, Scattering, High Energy Physics::Phenomenology, Form factor (quantum field theory), Observable, Gluon, High Energy Physics - Phenomenology, lcsh:QC770-798, High Energy Physics::Experiment, Aceleradores de partículas |
| الوصف: | The role of low-$x$ parton dynamics in dictating the high-energy behavior of forward scattering observables at LHC energies is investigated using a QCD-based model with even-under-crossing amplitude dominance at high-energies. We explore the effects of different sets of pre- and post-LHC fine-tuned parton distributions on the forward quantities $\sigma_{tot}$ and $\rho$, from $pp$ and $\bar{p}p$ scattering in the interval 10 GeV - 13 TeV. We also investigate the role of the leading soft contribution, the low-energy cuttoff, and the energy dependence of the semihard form factor on these observables. We show that in all cases investigated the highly restrictive data on $\rho$ parameter at $\sqrt{s}=13$ TeV indicate that a crossing-odd component may play a crucial role in forward elastic scattering at the highest energies. In the Regge language an odd-under-crossing object is called Odderon. Comment: 15 pages, 9 tables, 9 figures. One table and two references added, minor revision and discussions improved |
| وصف الملف: | application/pdf |
| تدمد: | 1434-6052 1434-6044 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b1006dc8dddcda41cd1ce8b8427fa5 https://doi.org/10.1140/epjc/s10052-019-7545-2 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....35b1006dc8dddcda41cd1ce8b8427fa5 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14346052 14346044 |
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