Multiple Interactions and Saturation in High Energy Collisions
(2006) Memorial Workshop Devoted to the 75th Birthday of V N Gribov p.167-179- Abstract
- Energy conservation is a large part of the NLO corrections to BFKL. A formalism is presented which includes effects of energy-momentum conservation in the dipole formalism in transverse coordinate space. Energy conservation gives a very strong suppression at small x, which implies that the effect of multi-pomeron exchange and saturation are pushed to very small x-values or very high energies. Perturbative QCD and PDFs from HERA can describe jets and Et-flow in high energy pp collisions, but the multiplicity distributions are much more sensitive to non-perturbative effects. Analyses of minimum bias and underlying events show that colours appear to combine to give strings which are as short as possible, in a way very different from e+e-... (More)
- Energy conservation is a large part of the NLO corrections to BFKL. A formalism is presented which includes effects of energy-momentum conservation in the dipole formalism in transverse coordinate space. Energy conservation gives a very strong suppression at small x, which implies that the effect of multi-pomeron exchange and saturation are pushed to very small x-values or very high energies. Perturbative QCD and PDFs from HERA can describe jets and Et-flow in high energy pp collisions, but the multiplicity distributions are much more sensitive to non-perturbative effects. Analyses of minimum bias and underlying events show that colours appear to combine to give strings which are as short as possible, in a way very different from e+e- annihilation. This leads to important questions about the properties of the pomeron, the relation between high multiplicity events and diffraction, and the applicability of the AGK cutting rules. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/745793
- author
- Gustafson, Gösta LU
- publishing date
- 2006
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- [Host publication title missing]
- editor
- Dokshitzer, Yu. L. ; Lévai, P. and Nyíri, J.
- pages
- 167 - 179
- publisher
- World Scientific Publishing
- conference name
- Memorial Workshop Devoted to the 75th Birthday of V N Gribov
- conference dates
- 2005-05-22 - 2005-05-24
- external identifiers
-
- scopus:84894461648
- ISBN
- 981-256-756-9
- language
- English
- LU publication?
- no
- id
- bb39d891-682b-4f58-a979-b1aa393f2899 (old id 745793)
- date added to LUP
- 2016-04-04 10:06:39
- date last changed
- 2022-01-29 19:48:16
@inproceedings{bb39d891-682b-4f58-a979-b1aa393f2899,
abstract = {{Energy conservation is a large part of the NLO corrections to BFKL. A formalism is presented which includes effects of energy-momentum conservation in the dipole formalism in transverse coordinate space. Energy conservation gives a very strong suppression at small x, which implies that the effect of multi-pomeron exchange and saturation are pushed to very small x-values or very high energies. Perturbative QCD and PDFs from HERA can describe jets and Et-flow in high energy pp collisions, but the multiplicity distributions are much more sensitive to non-perturbative effects. Analyses of minimum bias and underlying events show that colours appear to combine to give strings which are as short as possible, in a way very different from e+e- annihilation. This leads to important questions about the properties of the pomeron, the relation between high multiplicity events and diffraction, and the applicability of the AGK cutting rules.}},
author = {{Gustafson, Gösta}},
booktitle = {{[Host publication title missing]}},
editor = {{Dokshitzer, Yu. L. and Lévai, P. and Nyíri, J.}},
isbn = {{981-256-756-9}},
language = {{eng}},
pages = {{167--179}},
publisher = {{World Scientific Publishing}},
title = {{Multiple Interactions and Saturation in High Energy Collisions}},
year = {{2006}},
}