Heavy Flavor Jet Substructure at Lepton Colliders
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909777582358528 |
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| author | Dhani, Prasanna K. Fedkevych, Oleh Ghira, Andrea |
| author_facet | Dhani, Prasanna K. Fedkevych, Oleh Ghira, Andrea |
| contents | We provide a detailed analysis of event-shape observables, namely the energy correlation function and jet angularity, for heavy-flavor jets produced in electron-positron collisions, focusing on quantum chromodynamics (QCD) interactions. Using modern jet substructure techniques, we investigate the dead-cone effect, where QCD radiation is suppressed around a heavy quark within an angle proportional to its mass. Our analysis achieves next-to-leading logarithmic accuracy, combined with fixed-order contributions, to improve the description of the transition near the dead-cone threshold. To ensure a comprehensive perspective, we compare our analytical results with predictions from the Pythia, Herwig and Sherpa Monte Carlo simulations at past and future lepton colliders. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_07894 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Heavy Flavor Jet Substructure at Lepton Colliders Dhani, Prasanna K. Fedkevych, Oleh Ghira, Andrea High Energy Physics - Phenomenology We provide a detailed analysis of event-shape observables, namely the energy correlation function and jet angularity, for heavy-flavor jets produced in electron-positron collisions, focusing on quantum chromodynamics (QCD) interactions. Using modern jet substructure techniques, we investigate the dead-cone effect, where QCD radiation is suppressed around a heavy quark within an angle proportional to its mass. Our analysis achieves next-to-leading logarithmic accuracy, combined with fixed-order contributions, to improve the description of the transition near the dead-cone threshold. To ensure a comprehensive perspective, we compare our analytical results with predictions from the Pythia, Herwig and Sherpa Monte Carlo simulations at past and future lepton colliders. |
| title | Heavy Flavor Jet Substructure at Lepton Colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2502.07894 |