期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP02(2016)142
关键词
QCD Phenomenology; Phenomenological Models
资金
- Swedish Research Council [621-2013-4287]
- MCnetITN FP7 Marie Curie Initial Training Network [PITN-GA-2012-315877]
- European Research Council (ERC) under the European Union [668679]
We present a new framework for the modelling of hard diffraction in pp and p (p) over bar collisions. It starts from the the approach pioneered by Ingelman and Schlein, wherein the single diffractive cross section is factorized into a Pomeron flux and a Pomeron PDF. To this it adds a dynamically calculated rapidity gap survival factor, derived from the modelling of multiparton interactions. This factor is not relevant for diffraction in ep collisions, giving non-universality between HERA and Tevatron diffractive event rates. The model has been implemented in PYTHIA 8 and provides a complete description of the hadronic state associated with any hard single diffractive process. Comparisons with pp and pp data reveal improvement in the description of single diffractive events.
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