Recent progress in transverse momentum dependent (TMD) Parton Densities and corresponding parton showers
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866917797636866048 |
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| author | Monfared, S. Taheri |
| author_facet | Monfared, S. Taheri |
| contents | The parton branching method is crucial for Monte Carlo generators, which are essential for high-energy physics predictions. We examine the impact of soft gluons on inclusive collinear and Transverse Momentum Dependent (TMD) parton densities. By applying the Parton-Branching (PB) method, we identify the non-perturbative Sudakov form factor with the integration range $z \to 1$, which is often neglected in collinear parton shower approaches.
The significance of soft gluons is demonstrated through the transverse momentum spectrum of Drell-Yan lepton pairs, resulting in an intrinsic-$k_t$ distribution width that remains independent of $\sqrt(s)$, contrary to observations in collinear parton shower approaches. This behavior is attributed to the non-perturbative Sudakov form factor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_05853 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Recent progress in transverse momentum dependent (TMD) Parton Densities and corresponding parton showers Monfared, S. Taheri High Energy Physics - Phenomenology The parton branching method is crucial for Monte Carlo generators, which are essential for high-energy physics predictions. We examine the impact of soft gluons on inclusive collinear and Transverse Momentum Dependent (TMD) parton densities. By applying the Parton-Branching (PB) method, we identify the non-perturbative Sudakov form factor with the integration range $z \to 1$, which is often neglected in collinear parton shower approaches. The significance of soft gluons is demonstrated through the transverse momentum spectrum of Drell-Yan lepton pairs, resulting in an intrinsic-$k_t$ distribution width that remains independent of $\sqrt(s)$, contrary to observations in collinear parton shower approaches. This behavior is attributed to the non-perturbative Sudakov form factor. |
| title | Recent progress in transverse momentum dependent (TMD) Parton Densities and corresponding parton showers |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2410.05853 |