CGC/saturation approach: an impact-parameter dependent model for diffraction production in DIS
Abstract In the paper we discussed the evolution equations for diffractive production in the framework of CGC/saturation approach, and found the analytical solutions for several kinematic regions. The most impressive features of these solutions are, that diffractive production does not manifest geom...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-06-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-5957-z |
| _version_ | 1811288241649745920 |
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| author | Carlos Contreras Eugene Levin Rodrigo Meneses Irina Potashnikova |
| author_facet | Carlos Contreras Eugene Levin Rodrigo Meneses Irina Potashnikova |
| author_sort | Carlos Contreras |
| collection | DOAJ |
| description | Abstract In the paper we discussed the evolution equations for diffractive production in the framework of CGC/saturation approach, and found the analytical solutions for several kinematic regions. The most impressive features of these solutions are, that diffractive production does not manifest geometric scaling behaviour i.e. being a function of one variable. Based on these solutions, we suggest an impact parameter dependent saturation model, which is suitable for describing diffraction production both deep in the saturation region, and in the vicinity of the saturation scale. Using the model we attempted to fit the combined data on diffraction production from H1 and ZEUS collaborations. We found that we are able describe both $$x_{I\!\!P}$$ xIP and $$\beta $$ β dependence, as well as Q behavior of the measured cross sections. In spite of the sufficiently large $$\chi ^2/d.o.f.$$ χ2/d.o.f. we believe that our description provides an initial impetus to find a fit of the experimental data, based on the solution of the CGC/saturation equation, rather than on describing the diffraction system in simplistic manner, assuming that only quark-antiquark pair and one extra gluon, are produced. |
| first_indexed | 2024-04-13T03:33:37Z |
| format | Article |
| id | doaj.art-3d373913f899466ca6e861bed50e4c39 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-04-13T03:33:37Z |
| publishDate | 2018-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-3d373913f899466ca6e861bed50e4c392022-12-22T03:04:23ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-06-0178611410.1140/epjc/s10052-018-5957-zCGC/saturation approach: an impact-parameter dependent model for diffraction production in DISCarlos Contreras0Eugene Levin1Rodrigo Meneses2Irina Potashnikova3Departamento de Física, Universidad Técnica Federico Santa MaríaDepartamento de Física, Universidad Técnica Federico Santa MaríaEscuela de Ingeniería Civil, Facultad de Ingeniería, Universidad de ValparaísoDepartamento de Física, Universidad Técnica Federico Santa MaríaAbstract In the paper we discussed the evolution equations for diffractive production in the framework of CGC/saturation approach, and found the analytical solutions for several kinematic regions. The most impressive features of these solutions are, that diffractive production does not manifest geometric scaling behaviour i.e. being a function of one variable. Based on these solutions, we suggest an impact parameter dependent saturation model, which is suitable for describing diffraction production both deep in the saturation region, and in the vicinity of the saturation scale. Using the model we attempted to fit the combined data on diffraction production from H1 and ZEUS collaborations. We found that we are able describe both $$x_{I\!\!P}$$ xIP and $$\beta $$ β dependence, as well as Q behavior of the measured cross sections. In spite of the sufficiently large $$\chi ^2/d.o.f.$$ χ2/d.o.f. we believe that our description provides an initial impetus to find a fit of the experimental data, based on the solution of the CGC/saturation equation, rather than on describing the diffraction system in simplistic manner, assuming that only quark-antiquark pair and one extra gluon, are produced.http://link.springer.com/article/10.1140/epjc/s10052-018-5957-z |
| spellingShingle | Carlos Contreras Eugene Levin Rodrigo Meneses Irina Potashnikova CGC/saturation approach: an impact-parameter dependent model for diffraction production in DIS European Physical Journal C: Particles and Fields |
| title | CGC/saturation approach: an impact-parameter dependent model for diffraction production in DIS |
| title_full | CGC/saturation approach: an impact-parameter dependent model for diffraction production in DIS |
| title_fullStr | CGC/saturation approach: an impact-parameter dependent model for diffraction production in DIS |
| title_full_unstemmed | CGC/saturation approach: an impact-parameter dependent model for diffraction production in DIS |
| title_short | CGC/saturation approach: an impact-parameter dependent model for diffraction production in DIS |
| title_sort | cgc saturation approach an impact parameter dependent model for diffraction production in dis |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-5957-z |
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