The underlying event and the total cross section from Tevatron to the LHC
The underlying event and the total cross section from Tevatron to the LHC
复制标题
基础事件和从 Tevatron 到 LHC 的总横截面
DOI:
--
复制
发表时间:
2008
期刊:
影响因子:
--
通讯作者:
M. Seymour
中科院分区:
文献类型:
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作者:
M. Bahr;J. Butterworth;M. Seymour
Multiple partonic interactions are widely used to simulate the hadronic final state in high energy hadronic collisions, and successfully describe many features of the data. It is important to make maximum use of the available physical constraints on such models, particularly given the large extrapolation from current high energy data to LHC energies. In eikonal models, the rate of multiparton interactions is coupled to the energy dependence of the total cross section. Using a Monte Carlo implementation of such a model, we study the connection between the total cross section, the jet cross section, and the underlying event. By imposing internal consistency on the model and comparing to current data we constrain the allowed range of its parameters. We show that measurements of the total proton-proton cross-section at the LHC are likely to break this internal consistency, and thus to require an extension of the model. Likely such extensions are that hard scatters probe a denser matter distribution inside the proton in impact parameter space than soft scatters, a conclusion also supported by Tevatron data on double-parton scattering, and/or that the basic parameters of the model are energy dependent.
DOI:
10.48550/arxiv.0804.3053
发表时间:
2008
期刊:
arXiv e-prints
影响因子:
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作者:
Bahr M.
通讯作者:
Bahr M.
DOI:
10.1140/epjc/s10052-008-0610-x
发表时间:
2007-11
期刊:
The European Physical Journal C
影响因子:
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作者:
A. Sherstnev;R. Thorne
通讯作者:
A. Sherstnev;R. Thorne