Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model
We evaluate the unintegrated gluon distribution of the proton starting from a parametrization of the color dipole cross section including Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution and saturation effects. To this end, we perform the Fourier-Bessel transform of σ(x,r)/α(r). At large...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026932200716X |
| _version_ | 1811214365164044288 |
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| author | Agnieszka Łuszczak Marta Łuszczak Wolfgang Schäfer |
| author_facet | Agnieszka Łuszczak Marta Łuszczak Wolfgang Schäfer |
| author_sort | Agnieszka Łuszczak |
| collection | DOAJ |
| description | We evaluate the unintegrated gluon distribution of the proton starting from a parametrization of the color dipole cross section including Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution and saturation effects. To this end, we perform the Fourier-Bessel transform of σ(x,r)/α(r). At large transverse momentum of gluons we match the so-obtained distribution to the logarithmic derivative of the collinear gluon distribution. We check our approach by calculating the proton structure function FL(x,Q2) finding good agreement with HERA data. |
| first_indexed | 2024-04-12T06:03:16Z |
| format | Article |
| id | doaj.art-dccf4179314646e994e38bb41112f8b4 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-12T06:03:16Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-dccf4179314646e994e38bb41112f8b42022-12-22T03:44:59ZengElsevierPhysics Letters B0370-26932022-12-01835137582Unintegrated gluon distributions from the color dipole cross section in the BGK saturation modelAgnieszka Łuszczak0Marta Łuszczak1Wolfgang Schäfer2Cracow University of Technology, Department of Physics, PL-30-084 Kraków, Poland; Corresponding author.College of Natural Sciences, Institute of Physics, University of Rzeszów, ul. Pigonia 1, PL-35-959 Rzeszów, PolandInstitute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31-342 Kraków, PolandWe evaluate the unintegrated gluon distribution of the proton starting from a parametrization of the color dipole cross section including Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution and saturation effects. To this end, we perform the Fourier-Bessel transform of σ(x,r)/α(r). At large transverse momentum of gluons we match the so-obtained distribution to the logarithmic derivative of the collinear gluon distribution. We check our approach by calculating the proton structure function FL(x,Q2) finding good agreement with HERA data.http://www.sciencedirect.com/science/article/pii/S037026932200716X |
| spellingShingle | Agnieszka Łuszczak Marta Łuszczak Wolfgang Schäfer Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model Physics Letters B |
| title | Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model |
| title_full | Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model |
| title_fullStr | Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model |
| title_full_unstemmed | Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model |
| title_short | Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model |
| title_sort | unintegrated gluon distributions from the color dipole cross section in the bgk saturation model |
| url | http://www.sciencedirect.com/science/article/pii/S037026932200716X |
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