Color coherence in multi-jet final states
We discuss coherent QCD radiation from space-like parton branching and its effects on multi-jet final states at high-energy hadron colliders. Coherence effects for small longitudinal momentum fractions x are not included in the branching algorithms of standard shower Monte Carlo event generators. On...
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| 格式: | Conference item |
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2009
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| _version_ | 1826273627138424832 |
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| author | Hautmann, F Jung, H |
| author_facet | Hautmann, F Jung, H |
| author_sort | Hautmann, F |
| collection | OXFORD |
| description | We discuss coherent QCD radiation from space-like parton branching and its effects on multi-jet final states at high-energy hadron colliders. Coherence effects for small longitudinal momentum fractions x are not included in the branching algorithms of standard shower Monte Carlo event generators. On the other hand, they are taken into account only partially in perturbative next-to-leading-order calculations for multi-jets. Such effects are present to all orders in α s and can become logarithmically enhanced with sqrt(s) / E T, where E T is the hardest jet transverse energy. We present results of summing coherence effects to all orders by parton-branching Monte Carlo methods based on transverse-momentum dependent matrix elements. © 2008 Elsevier B.V. All rights reserved. |
| first_indexed | 2024-03-06T22:31:05Z |
| format | Conference item |
| id | oxford-uuid:584b6722-cf3e-4f0d-921e-274a72bcceda |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:31:05Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:584b6722-cf3e-4f0d-921e-274a72bcceda2022-03-26T17:02:24ZColor coherence in multi-jet final statesConference itemhttp://purl.org/coar/resource_type/c_5794uuid:584b6722-cf3e-4f0d-921e-274a72bccedaSymplectic Elements at Oxford2009Hautmann, FJung, HWe discuss coherent QCD radiation from space-like parton branching and its effects on multi-jet final states at high-energy hadron colliders. Coherence effects for small longitudinal momentum fractions x are not included in the branching algorithms of standard shower Monte Carlo event generators. On the other hand, they are taken into account only partially in perturbative next-to-leading-order calculations for multi-jets. Such effects are present to all orders in α s and can become logarithmically enhanced with sqrt(s) / E T, where E T is the hardest jet transverse energy. We present results of summing coherence effects to all orders by parton-branching Monte Carlo methods based on transverse-momentum dependent matrix elements. © 2008 Elsevier B.V. All rights reserved. |
| spellingShingle | Hautmann, F Jung, H Color coherence in multi-jet final states |
| title | Color coherence in multi-jet final states |
| title_full | Color coherence in multi-jet final states |
| title_fullStr | Color coherence in multi-jet final states |
| title_full_unstemmed | Color coherence in multi-jet final states |
| title_short | Color coherence in multi-jet final states |
| title_sort | color coherence in multi jet final states |
| work_keys_str_mv | AT hautmannf colorcoherenceinmultijetfinalstates AT jungh colorcoherenceinmultijetfinalstates |