Fragmentation functions for axial-vector heavy tetraquarks: A TQ4Q1.1 update
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909635219292160 |
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| author | Celiberto, Francesco Giovanni |
| author_facet | Celiberto, Francesco Giovanni |
| contents | We present and discuss the release of novel sets of collinear, variable-flavor-number-scheme fragmentation functions for axial-vector, fully heavy $T_{4c}(1^{+-})$ and $T_{4b}(1^{+-})$ tetraquarks. Working within the single-parton approximation at leading power and employing nonrelativistic QCD factorization adapted for tetraquark Fock states, we model the initial-scale fragmentation input using a recent calculation for the constituent heavy-quark channel. Standard DGLAP evolution is then applied, ensuring consistent implementation of evolution thresholds. To support phenomenology, we investigate NLL/NLO$^+$ rates for tetraquark-jet systems at the HL-LHC and FCC from (sym)JETHAD. This study further integrates exotic matter explorations with precision QCD calculations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_03949 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fragmentation functions for axial-vector heavy tetraquarks: A TQ4Q1.1 update Celiberto, Francesco Giovanni High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory We present and discuss the release of novel sets of collinear, variable-flavor-number-scheme fragmentation functions for axial-vector, fully heavy $T_{4c}(1^{+-})$ and $T_{4b}(1^{+-})$ tetraquarks. Working within the single-parton approximation at leading power and employing nonrelativistic QCD factorization adapted for tetraquark Fock states, we model the initial-scale fragmentation input using a recent calculation for the constituent heavy-quark channel. Standard DGLAP evolution is then applied, ensuring consistent implementation of evolution thresholds. To support phenomenology, we investigate NLL/NLO$^+$ rates for tetraquark-jet systems at the HL-LHC and FCC from (sym)JETHAD. This study further integrates exotic matter explorations with precision QCD calculations. |
| title | Fragmentation functions for axial-vector heavy tetraquarks: A TQ4Q1.1 update |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2504.03949 |